Weak links

General discussion about the sport of hang gliding
User avatar
Tad Eareckson
Posts: 9150
Joined: 2010/11/25 03:48:55 UTC

Re: Weak links

Post by Tad Eareckson »

http://ozreport.com/forum/viewtopic.php?t=31052
Poll on weaklinks
Jim Rooney - 2013/03/04 19:31:36 UTC

We all play by the same rules, or we don't play.
The one-size-fits-all standard paragliding helmet:

005-010207
http://farm8.staticflickr.com/7723/16582999324_7b6bf71c74_o.png
Image
068-170722
http://farm8.staticflickr.com/7599/16585240963_d46c3c1d98_o.png
Image
223-321305
http://farm6.staticflickr.com/5469/16997981267_e82174d6be_o.png
Image

(Hey Zack... If you solo aero you're gonna be flying a three G weak link 'cause the accepted standards and practices changed and two hundred pound Greenspot is what Davis is happy with. Good freakin' luck pitching out abruptly to use it as an instant hands free release.)
User avatar
Tad Eareckson
Posts: 9150
Joined: 2010/11/25 03:48:55 UTC

Re: Weak links

Post by Tad Eareckson »

Jim Rooney - 2013/03/04 19:31:36 UTC

The accepted standards and practices changed.
Goddam right they did. And when we make a decision on the best aerotow weak link...

http://ozreport.com/12.081
Weaklinks - the HGFA rules
Davis Straub - 2008/04/22 14:47:00 UTC
Pilots must use weaklinks provided by the meet organizers and in a manner approved by the meet organizers. All weaklinks will be checked and use of inappropriate weaklinks will require the pilot to go to the end of the launch line to change the weaklink.
Weaklinks will consist of a single loop of Cortland 130 lb Greenspot braided Dacron Tolling line and should be placed at one end of a shoulder bridle. The tow forces on the weaklink will be roughly divided in half by this placement. Pilots will be shown how to tie the weaklink so that it more likely breaks at its rating breaking strength.
Getting pilots into the air quickly is also safer as it reduces the stress that pilots feel on the ground and keeps them focused on their job which is to launch safely and without hassling the ground crew or themselves. When we look at safety we have to look at the whole system, not just one component of that system. One pilot may feel that one component is unsafe from his point of view and desire a different approach, but accommodating one pilot can reduce the overall safety of the system.
http://ozreport.com/forum/viewtopic.php?t=31052
Poll on weaklinks
Jim Rooney - 2013/03/04 19:31:36 UTC

We all play by the same rules, or we don't play.
...it's for EVERYONE at all times for at least twenty years. We obviously can't be...

http://ozreport.com/forum/viewtopic.php?t=24846
Is this a joke ?
Jim Rooney - 2011/08/26 17:34:33 UTC

Do NOT skip this little bit...
pilots were asked to tell the tug pilot if they were doing that
See, Russel knows what's up.
He knows that you're changing the equation and because of this, you need to ask the tug pilot.
...retraining our tug pilot fleet with respect to the different equations involved in flying different weak links every couple years. So we universally switched to a 54 percent more dangerous standard aerotow weak link a few nanoseconds after...

Image

...The Great Zack Marzec Threads Lockdown Event of 2013. And when hang gliding MOST NEEDED YOU to...

http://ozreport.com/forum/viewtopic.php?t=30971
Zach Marzec
Jim Rooney - 2013/02/12 18:00:27 UTC

I just buried my friend and you want me to have a nice little discussion about pure speculation about his accident so that some dude that's got a pet project wants to push his theories?

Deltaman loves his mouth release.
BFD

I get tired as hell "refuting" all these mouth release and "strong link" arguments. Dig through the forums if you want that. I've been doing it for years but unfortunately the peddlers are religious in their beliefs so they find justification any way they can to "prove" their stuff. This is known as "Confirmation Bias"... seeking data to support your theory... it's back-asswards. Guess what? The shit doesn't work. If it did, we'd be using it everywhere. But it doesn't stand the test of reality.

AT isn't new. This stuff's been worked on and worked over for years and thousands upon thousands of tows. I love all these egomaniacs that jump up and decide that they're going to "fix" things, as if no one else has ever thought of this stuff?

But back to the root of my anger... speculation.
Much like confirmation bias, he's come here to shoehorn his pet little project into a discussion. Please take your snake oil and go elsewhere.

Tune him up?
Yeah, sorry... no.
..."refute" all these "strong link" arguments you abruptly, totally, permanently bailed on us. What was the point in "refuting" all these "strong link" arguments when...

http://ozreport.com/forum/viewtopic.php?t=24846
Is this a joke ?
Jim Rooney - 2011/08/26 02:44:10 UTC

Argue all you like about the "true" purpose of a weaklink... but it's only you that's arguing.
I find no disagreement in the professional community as to such.
I only find a disconnect when they're talking to the general public, and it always boils down to semantics.

See, we're not confused.
You're searching for an argument and only finding it within yourself.

This btw is one of the main reasons that most of the professionals do not bother with the forums.
Cuz it's generally a bitchfest around here.

Instead of looking for an argument, you may consider listening instead.
...no one was allowed to fly anything more dangerous than 130 and virtually no one was arguing for it then bailing the nanosecond it became universal? What's the point of having this sussed a bit better than us armchair warrior convenience junkies if you're not going to say anything as hang glider aerotowing plunges into the most dangerous devolution stage of its entire history?

We're now a fair bit into our third season of this manmade aerotow safety catastrophe in which the new two hundred pound Tad-O-Link has been in universal circulation and we've had ZERO reports of a single increase in the safety of a towing operation or inconvenience. So...
Jim Rooney - 2011/08/28 10:40:24 UTC

Am I "certain" about anything?
Nope.
However, some things get real obvious when you're doing them all the time. One is that weaklinks do in fact save people's asses.
Where are the asses that aren't getting saved? You're indicating to us that you personally have had fairly regular situations that Rooney Links save people's asses. So shouldn't we have been seeing a lot of wasted asses at all the major tow operations by now?
You're 100% onto it... relying on the skill of the pilot is a numbers game that you'll lose at some point.
When is ONE person going to lose the numbers game of relying on his skill? You've assured us that we ALL will. If that were true shouldn't we have had at least a hundred or so losers splattered all over the aerotow landscape by now?
Is a weaklink going to save your ass? Who knows? But it's nice to stack the deck in your favour.

Now flip the argument and you start to see the devil.
A glider can take a whole shitload more force than a weaklink can.
So, if you're of the "sole purpose" cult, then you see no issue with a LOT stronger weaklink.
Well, when we have ZERO reported Tad-O-Link saves or inconveniences in the space of a two plus year period we're effectively flying two thousand pound weak links.
Well, it won't take long with that system before we've got a lot more dead pilots out there.
A lot more than WHAT? ZERO? We haven't had ONE dead pilot out there. Please define "long". We haven't had so much as one scratched pilot out there who would've had his ass saved by a Rooney Link? How long are we FUCKIN' SUPPOSED TO HAVE TO WAIT for this bloodbath to start? We just had two people killed on a goddam brain dead easy truck tow a bit over five weeks ago ferchrisake. Is this the best we can do with Tad-O-Links?
So they can stuff their philosophical purity bs... cuz I have no desire to tow someone to their death, no matter how willing they may be.
I think you've gotta try a lot harder. Definition of insanity is doing the same thing over and over and expecting different results. Try fixing whatever's going on back there by giving people the rope more.
I'm not playing with this stuff in my head and just dismissing it. There's been a lot that's gone into this system.
Really? Like looking at actual data or just using rational thought processes?
I've seen too many people walk the "strong link" road only to find out the reality of things.
Guess all of us muppets and all your tug drivers and flight park operators are getting pretty detached from reality.
Fortunately, they've been unscathed, but there have been a lot of soiled underpants in the process.
I'm sure. So how come not a single one of them is speaking up against this outrage? Where's Paul Tjaden who almost had his glider torn apart by a Tad-O-Link that didn't break when it was supposed to? How 'bout Lauren Eminently-Qualified-Tandem-Pilot Tjaden?
I'm happy to discuss this stuff.
Still? I haven't heard you discussing this for a long time.
But I'm sick to death of arguing about it.
Nobody's asking you to argue about it. Just discuss it. That's what makes you happy, right.

The last person on the planet killed hang glider aerotowing was Zack Marzec - two years and three months ago yesterday. And that was a couple seconds after his Rooney Link increased the safety of the towing operation by overriding the decisions of both professional aerotow pilots to continue the tow. And there hasn't been ONE SINGLE CRASH attributed to or involving a weak link of ANY strength subsequent to that one.

And good freakin' luck getting ANYBODY currently involved in aerotowing to even specify what's being used for aerotow weak links - let alone what the purpose is, other than to make Davis happy.

We will NEVER AGAIN hear a report of an aerotow crash in which weak link strength is discussed as a factor. And prior to Zack Marzec that was discussed to the hilt whenever possible.
User avatar
Tad Eareckson
Posts: 9150
Joined: 2010/11/25 03:48:55 UTC

Re: Weak links

Post by Tad Eareckson »

http://ozreport.com/4.010
Oz Nats - bad day in the tow paddock
Davis Straub - 2000/01/12

On static tow...
Fixed line - like aero. Static with a REALLY SHORT fixed line.
...if you are not pulling in quite strongly, your nose can go straight up.
You mean like?:

http://groups.yahoo.com/group/flyhg/message/17223
Pilot's Hotline winter flying
Mark Frutiger - 2013/02/03 13:41

Yesterday was a light and variable day with expected good lift. Zach was the second tow of the afternoon. We launched to the south into a nice straight in wind. A few seconds into the tow I hit strong lift.

Zach hit it and went high and to the right.
I believe he WAS...

06-03114
http://farm4.staticflickr.com/3728/9655895292_f4f808fb0e_o.png
Image

...pulled in pretty strongly, Davis. After all, he WAS a genuine pro toad. Do we have some reason to believe that he was less pulled in when he hit the lift than he was coming off the cart? If we do then how come nobody's voiced that opinion?
We've been watching this happen to all sorts of pilots around us especially in this high wind.
So how come all these Aussie champs were too fucking stupid to keep pulling in strongly? Any chance they were thinking about climbing out of the paddock instead of skimming until the trucks ran out of runway?
Problem is your weaklink can snap and then you are stalled big time.
BULLSHIT. A weak link snap can only increase the safety of the towing operation at the expense of a bit of inconvenience. An appropriate weak link with a finished length of 1.5 inches or less will PREVENT you from getting into a dangerously steep climb...

http://ozreport.com/forum/viewtopic.php?t=31052
Poll on weaklinks
Jim Rooney - 2013/03/05 21:40:02 UTC

I'm not saying that you've claimed that a stronger weaklink allows for a greater AOA... I'm telling you that it does.
You know this.
I'll spell it out anyway...
Increases in AOA increase the load factor... push it beyond what the weaklink can stand and *POP*, you're off tow.
Increase the load factor that the weaklink can withstand and you increase the achievable AOA.

This ain't truck towing. There is no pressure limiting mechanism. Push out and you load the line. Push out hard and you'll break the weaklink... that's the whole idea.

You want to break off the towline? Push out... push out hard... it will break.
As others have pointed out, they've used this fact intentionally to get off tow. It works.

You want MORE.
I want you to have less.
This is the fundamental disagreement.
You're afraid of breaking off with a high AOA? Good... tow with a WEAKER weaklink... you won't be able to achieve a high AOA. Problem solved.
If gliders are climbing so steeply that they're stalling when the weak link snaps it's because they're using Tad-O-Links. Just put them on really appropriate weak links with a finished lengths of 1.5 inches or less. Problem solved.
Not a pleasant situation when you are low.
How 'bout a hundred and fifty feet?

http://4.bp.blogspot.com/-bRrpHNa68iY/UQ6Pv9gRZyI/AAAAAAAAjTg/Hc22bx5122Q/s2048/20943781_BG1.jpg
Image

Is that high enough?

http://ozreport.com/forum/viewtopic.php?t=30971
Zach Marzec
Davis Straub - 2013/02/13 15:45:22 UTC

We have no agreement that a stronger weaklink would make it safer (again, I fly with a slightly stronger weaklink).
Davis Straub - 2013/03/06 18:29:05 UTC

You know, after all this discussion I'm now convinced that it is a very good idea to treat the weaklink as a release, that that is exactly what we do when we have a weaklink on one side of a pro tow bridle. That that is exactly what has happened to me in a number of situations and that the whole business about a weaklink only for the glider not breaking isn't really the case nor a good idea for hang gliding.

I'm happy to have a relatively weak weaklink, and have never had a serious problem with the Greenspot 130, just an inconvenience now and then.

I'm thinking about doing a bit more testing as there seemed to be some disagreement around here about what the average breaking strength of a loop of Greenspot (or orange) weaklink was.
http://www.hanggliding.org/viewtopic.php?t=31717
Weak link?
Davis Straub - 2014/08/20 19:48:26 UTC

Many of us are now using 200 lb test line from Cortland.
http://www.hanggliding.org/viewtopic.php?t=31747
Lockout
Davis Straub - 2014/09/01 15:22:41 UTC

I can tell you that I fly with a 200lb weaklink on one side of my 750lb pro tow bridle. I am happy with it.
Lying pigfucker.

That this son of a bitch can get away with the shit that he does is a tribute to the astronomical stupidity of the average asshole who participates in this sport.
User avatar
Tad Eareckson
Posts: 9150
Joined: 2010/11/25 03:48:55 UTC

Re: Weak links

Post by Tad Eareckson »

http://ozreport.com/forum/viewtopic.php?t=15385
CAA Safety Notice and Preliminary Findings re Queenstown Tan
Marc Fink - 2009/03/29 13:18:16 UTC

Tad is quite right in that I do not adequately understand the issues as he sees them. In fact--NOBODY adequately understands hang gliding except Tad! Tad constantly reminds us of the wholesale stupidity and negligence of all pilots and flight parks that use existing weaklinks, releases, hang straps, carabiners, hang checks, hook-in checks, non-dolly launches and faulty instructors. Oh, let's now add to that reserves and deployment systems--since he now suggests suspicions that Betty F. doesn't know as much as he does about reserve issues. No surprise there. So yes Tad--go out there and find yourself an old conical with a higher descent rate and inferior stability/inflation characteristics compared to modern pda or modified pda type reserves.
Yep, you miserable cowardly stupid little shit - Tad WAS pretty much the only voice out there standing up to this wholesale stupidity, negligence, illegality of all pilots and all flight parks. And it would've been so fucking cool if it had been YOUR wormy little ass splattered on the Quest runway three years, ten months, and four days later instead of Zack's - 'cept with Zack they weren't able to write it off as just another incompetent muppet back there.

I'm still hoping you'll get yours though - preferably from launching unhooked again at a much less forgiving site than High Point or thinking you could fix a bad thing and not wanting to start over.

Good thing you got Davis to lock the thread down at that point for you or you'd have gotten your balls torn off and shoved down your throat.
User avatar
Tad Eareckson
Posts: 9150
Joined: 2010/11/25 03:48:55 UTC

Re: Weak links

Post by Tad Eareckson »

http://www.hanggliding.org/viewtopic.php?t=19950
How To Crash Without Hurting Yourself (too much)
Jim Gaar - 2010/12/01 21:27:18 UTC

I had to do this once after a weak link break during an AT, just off the cart and about 33 mph (WW F3 170). Worked great BUT I was on airport grass. I would hate to try that on unknown, rough or tough terrain! Good to understand though.
But that weak link had the best known and accountable safety record (in your personal books anyway). And I guess now the two hundred that everybody suddenly became happy with for some totally inexplicable reason has the best known and accountable safety record (in your personal books anyway).

Asshole.

P.S. Tell me all about the landing you would LOVE to try on unknown, rough, or tough terrain.
P.P.S. And tell me all about the landings you've ACTUALLY HAD on unknown, rough, or tough terrain.
User avatar
Tad Eareckson
Posts: 9150
Joined: 2010/11/25 03:48:55 UTC

Re: Weak links

Post by Tad Eareckson »

http://ozreport.com/forum/viewtopic.php?t=24846
Is this a joke ?
Jim Rooney - 2011/08/28 10:40:24 UTC

Hi Tormod.
Oh, not at all.
I think what you're picking up on is my lack of willingness to discuss this with people that have already made up their minds.
Sorry for that, but it's just the nature of the beast.

I have no issue with discussing this with people that don't have an agenda.
I get very short with people that do however.

Am I "certain" about anything?
Nope.
However, some things get real obvious when you're doing them all the time. One is that weaklinks do in fact save people's asses.
You're 100% onto it... relying on the skill of the pilot is a numbers game that you'll lose at some point.

I find that so many people do not appreciate how fast and furious lockouts can happen.
They're exponential in nature.
Twice the time doesn't equate to twice the "bad"... it's four times the "bad"... then 16... it gets dramatic fast.

Is a weaklink going to save your ass? Who knows? But it's nice to stack the deck in your favour.

Now flip the argument and you start to see the devil.
A glider can take a whole shitload more force than a weaklink can.
So, if you're of the "sole purpose" cult, then you see no issue with a LOT stronger weaklink.

Well, it won't take long with that system before we've got a lot more dead pilots out there.
So they can stuff their philosophical purity bs... cuz I have no desire to tow someone to their death, no matter how willing they may be.

I'm not playing with this stuff in my head and just dismissing it. There's been a lot that's gone into this system.

I've seen too many people walk the "strong link" road only to find out the reality of things.
Fortunately, they've been unscathed, but there have been a lot of soiled underpants in the process.

I'm happy to discuss this stuff.
But I'm sick to death of arguing about it.
http://ozreport.com/forum/viewtopic.php?t=31052
Poll on weaklinks
Jim Rooney - 2013/03/04 19:31:36 UTC

I hope you can see what I mean... some people just want to argue.

The accepted standards and practices changed.
I still won't tow people with doubled up weaklinks. You don't get to "make shit up". I don't "make shit up" for that matter either.

We all play by the same rules, or we don't play.
Morningside decided that they were happy with 200lb weaklink.
Everybody's decided they're happy with it...

http://www.hanggliding.org/viewtopic.php?t=31717
Weak link?
Davis Straub - 2014/08/20 19:48:26 UTC

Many of us are now using 200 lb test line from Cortland.
http://www.hanggliding.org/viewtopic.php?t=31747
Lockout
Davis Straub - 2014/09/01 15:22:41 UTC

I can tell you that I fly with a 200lb weaklink on one side of my 750lb pro tow bridle. I am happy with it.
Whenever Davis decides to be happy with anything he makes real sure everybody else is too.

http://ozreport.com/12.081
Weaklinks - the HGFA rules
Davis Straub - 2008/04/22 14:47:00 UTC

It is safer to have a simple uniform release/bridle system that the ground crew is familiar with and can determine if there is a problem. The simpler and more uniform the safer, system wide.

Getting pilots into the air quickly is also safer as it reduces the stress that pilots feel on the ground and keeps them focused on their job which is to launch safely and without hassling the ground crew or themselves. When we look at safety we have to look at the whole system, not just one component of that system. One pilot may feel that one component is unsafe from his point of view and desire a different approach, but accommodating one pilot can reduce the overall safety of the system.
So we can mark 2013/03/04, the day you made your declaration, as the day every glider in the US and Australia at least switched over to 200, a LOT stronger weak link...

http://www.chgpa.org/forums/viewtopic.php?f=2&t=2467
weak links
Marc Fink - 2007/05/19 12:58:31 UTC

A 400lb load limit for a solo tow is absurd.
...since we all play by the same rules...

005-010207
http://farm8.staticflickr.com/7723/16582999324_7b6bf71c74_o.png
Image

...or we don't play. And we know that if anyone were selfish enough to feel that the 200 were unsafe from his point of view and desire to remain with 130 then accommodating him would reduce the overall safety of the system. (This is System Safety 101 for safety engineers.)

And you said that it wouldn't take long with that system before we had a lot more dead pilots out there. Well yeah. Duh.

So we're now well into our third season of universal Tad-O-Links. And I've checked the u$hPa fatalities summaries for 2013, 2014, and 2015 to try to get a feel for the magnitude of this carnage. And all I could find in which a weak link was mentioned was:
2013 HANG GLIDING & PARAGLIDING FATALITIES
HANG GLIDING FATALITIES
February 8, 2013 - Zack Marzec
Upon the breakage of the weak link, the glider whip stalled and then tumbled twice.
And that was 130, right? The pre 2013/03/04 universal standard?

So Davis, who's been at an around all this plenty long enough to understand what's what and who's who and is also a friend of yours says:

http://ozreport.com/4.010
Oz Nats - bad day in the tow paddock
Davis Straub - 2000/01/12

Mike Nooy takes off to our left, and he launches right into a dust devil. Like I said, they've been coming in every ten minutes or so, and you can't see them as the paddock is pretty green.

On static tow, if you are not pulling in quite strongly, your nose can go straight up. We've been watching this happen to all sorts of pilots around us especially in this high wind. Problem is your weaklink can snap and then you are stalled big time. Not a pleasant situation when you are low.

The best idea is to keep running, keep the nose down, and then power through the first hundred feet or so of altitude, before letting the nose out a bit. You want to tell your driver what the wind speed is before you start your tow, so they can know not to accelerate too quickly. They might have to stop or drastically slow down immediately after you get off the ground to keep the weaklink from breaking.
So Zack - a PROFESSIONAL PILOT...
Jim Rooney - 2011/08/25 04:55:25 UTC

Ditto dude.

It always amazes to hear know it all pilots arguing with the professional pilots.
I mean seriously, this is our job.
We do more tows in a day than they do in a month (year for most).

We *might* have an idea of how this stuff works.
They *might* do well to listen.
Not that they will, mind you... cuz they *know*.
...and good friend of yours - launched right into an invisible dust devil which...

http://ozreport.com/forum/viewtopic.php?t=30971
Zach Marzec
Paul Tjaden - 2013/02/07

Apparently, Zach simply hit strong low level turbulence, probably a dust devil that could not be seen due to the lack of dust in Florida, the nose went too high and he tumbled at a very low altitude.
...couldn't be seen due to Florida's excessive greenness and deplorable lack of dust, he was on static tow, he was pulled in as strongly as...

06-03114
http://farm4.staticflickr.com/3728/9655895292_f4f808fb0e_o.png
Image

...a pro toad is capable of pulling in, a tug is pretty much incapable of slowing down and keeping the weak link from breaking, the weak link broke when he was too low to get a parachute out, and he was stalled big time and not in a pleasant situation. Your good friend Davis seems to be saying that breaking the weak link in this circumstances could actually be a BAD thing. Ya think there's any possibility that this is the reason he's now happy with a slightly stronger one? Wouldn't a slightly stronger weak link be slightly less likely to break and stall the glider big time?

Or do ya think that Zack just pitched out abruptly to activate his instant hands free release but it was too strong and didn't break quite soon enough? If ya do then please explain to me why Mark didn't just fix whatever was going on back there by giving him the rope because he's a Professional Pilot.

With all due respect, Jim, I'm actually leaning towards Davis's point of view on this one - seeing as he's been at an around all this plenty longer than you have and it mirrors my own experiences with standard aerotow weak links pretty well.

So where are all these dead pilots we were supposed to be seeing out there before long? I'll take tug pilots if you want. In fact I'd actually really PREFER tug pilots. How 'bout just critically injured ones? Scraped knees? Bent downtimes? Soiled underpants?
Jim Rooney - 2011/08/26 17:34:33 UTC

Do NOT skip this little bit...
Davis Straub - 2011/08/26 14:04:52 UTC

pilots were asked to tell the tug pilot if they were doing that
See, Russel knows what's up.
He knows that you're changing the equation and because of this, you need to ask the tug pilot.
Some people I'll tow like this. Some I won't. Most that do this are the type I won't. At the end of the day, it's my call, not yours.
Guess we're saving a lot of time walking up to the tug and telling him we're using Tad-O-Links 'cause now the equation's the same for everybody. No more dangerous hard turns on takeoff for anybody.
However, some things get real obvious when you're doing them all the time. One is that weaklinks do in fact save people's asses.
Seems to me it's gotten real obvious that weak links do NOT, in fact, save people's asses. Either that or we muppets suddenly all became top notch pilots with skills that never fail us.

How many US solo aerotow flights have gone of since the accepted standards changed on 2013/03/04? If you can point to ZERO Tad-O-Link incidents, breaks, saves, crashes in thousands, tens of thousands of flights then please tell us just how much a weak link of any rating is doing ANYTHING to increase the safety of the towing operation. How is it doing ANYTHING other than...
Jim Rooney - 2011/08/28 10:15:12 UTC

Oh, in case it's not obvious (which it doesn't seem to be), once someone starts telling me what the "sole" purpose of a weaklink is, I tune them out as they have no clue what they're talking about.

Weaklinks are there to improve the safety of the towing operation, as I've stated before.

Any time someone starts in on this "sole purpose" bullshit, it's cuz they're arguing for stronger weaklinks cuz they're breaking them and are irritated by the inconvenience. I've heard it a million times and it's a load of shit. After they've formed their opinion, then they go in search of arguments that support their opinion.
Tost Flugzeuggerätebau

Weak links protect your aircraft against overloading.
...protecting your aircraft against overloading - like in REAL aviation?

What is the likelihood of any single pilot ever needing / benefitting from a weak link break...
Dr. Trisa Tilletti - 2012/06

You and I have flown sailplanes for almost as long as we have flown hang gliders. We own two sailplanes and have two airplanes that we use for towing full-size sailplanes. In all the time that we have flown and towed sailplanes, we have not experienced or even seen a sailplane weak link break.
...in the course of an aerotowing career?
User avatar
Tad Eareckson
Posts: 9150
Joined: 2010/11/25 03:48:55 UTC

Re: Weak links

Post by Tad Eareckson »

http://ozreport.com/forum/viewtopic.php?t=24846
Is this a joke ?
Jim Rooney - 2011/08/26 17:34:33 UTC

Do NOT skip this little bit...
pilots were asked to tell the tug pilot if they were doing thatpilots were asked to tell the tug pilot if they were doing that
See, Russel knows what's up.
He knows that you're changing the equation and because of this, you need to ask the tug pilot.
So now that the accepted standards and practices have changed and everyone and his dog is towing with the new stronglink that Davis is happy with do we all STILL need to ask the tug pilot so he can optimize his flying to the new equation?

Is the weak link the ONLY issue that has a significant effect on the "EQUATION"? Glider model and size; flying weight; actual versus placebo release; legal versus pro toad bridle; helmet certification; wheels; skids; fin; pilot rating, special skills set, experience, currency, physical condition; emotional state... None of these issues has more than a negligible effect on the "equation" but we gotta walk up to Russell each flight to ask him if he could adjust for the Tad-O-Link again?

http://www.chgpa.org/forums/viewtopic.php?f=2&t=3107
I have a tandem rating!!!
Lauren Tjaden - 2008/03/23 22:20:15 UTC

When Jim got me locked out to the right, I couldn't keep the pitch of the glider with one hand for more than a second (the pressure was a zillion pounds, more or less), but the F'ing release slid around when I tried to hit it. The barrel release wouldn't work because we had too much pressure on it.

Anyhow, the tandem can indeed perform big wingovers, as I demonstrated when I finally got separated from the tug.
Guess Jim Praul was operating on the right adjustment for Lauren's standard tandem aerotow weak link when they were locking out and doing big wingovers while they were trying to get their Bobby Fucking-Genius Bailey releases pried open 'cause we didn't hear the kind of whining from him that we did from Russell when Paul's Tad-O-Link didn't break when it was supposed to. Any thoughts on why Lauren's standard aerotow weak link didn't break when it was supposed to or why they didn't use their hook knife after the primary and backup failures?

Or maybe now we just hafta ask Russell if we wanna us the old 130 pound standard aerotow weak link for the equation adjustment? How many requests do you think he gets on a typical weekend?

http://www.chgpa.org/forums/viewtopic.php?f=2&t=3661
Flying the 914 Dragonfly
Jim Rooney - 2008/12/06 20:01:49 UTC

You will only ever need full throttle for the first fifty feet of a tandem tow. Don't ever pull a solo at full throttle... they will not be able to climb with you. You can tow them at 28 mph and you'll still leave them in the dust... they just won't be able to climb with you... weaklinks will go left and right.
Lessee...

Turbocharge gets you about a 24 percent boost in power/tension and the new standard aerotow weak link is 54 percent heavier than the old standard aerotow weak link. So I guess according to the equation we can now tow solos at full power without weak links going left, right, ever? Is that the equation adjustment we're looking at?

http://www.hanggliding.org/viewtopic.php?t=14230
pro tow set-up
Jim Rooney - 2009/11/10 17:19:54 UTC

Ah, back to civil discussion. Image

Something to note about leaving carts....
There is a drastic difference when being pulled by a 582 or a 914/912.

People have a tendency to leave the cart too soon when behind a 582. With the big tugs however, the problem is the opposite. This is especially obvious when you take someone that tows behind 582s and put them behind a 914.

It doesn't sound like a problem at first... more speed is good right? As with all things, yes but .... "to a point". See what happens behind a 914 if you use 582 technique is this....

You accelerate very rapidly of course and gain a lot of speed. I call it leaving the cart at Mach 5. No problem yet (well, there's a small one, but we'll get to that). As you leave the cart, the tug is already a good bit above you, so you ease off the bar pressure (you've got a ton at this point) and this is just about the same time you slam into the prop wash. Your weaklink lets go.

After a couple weaklink breaks in this manner, you start to wonder if Tad's right about these "weak" weaklinks. Nevermind that it's a technique problem not an equipment problem. Nevermind that using a stronglink greatly increases the chances that you will hurt yourself in a very bad way.

See, weaklinks don't care about speed. They care about load. Going Mach5 and easing off the pitch, even a little bit, greatly increases your load... remember that whole bit about windspeed being an exponential factor?

So there you are with in a highly loaded situation, and then you shockload the system by hitting the propwash. Not good.

Your weaklink is doing exactly what it should do.

Behind a 914, set the cart correctly, resist getting "pulled through" the bar by the tow force, and allow the glider to simply fly out of the cart. Don't pull in. Don't lock yourself to the cart. In short, don't use 582 technique. Consult an instructor (that's familiar with 914s) for a more detailed explanation than this.

Behind a 582, the problem is as stated before... people get antsy to get out of the cart. You do roll till you're practically lift the cart. It's a very different world.
So how are the gliders holding up to this SHOCKLOADING now that our weak links are no longer doing exactly what they should? How many airframes ya think need to be replaced at Ridgely on a typical weekend?

How can sleazy lying little frauds like you, Ryan, Trisa bear to show your faces anywhere in public after such a nuclear global debunking?
User avatar
Tad Eareckson
Posts: 9150
Joined: 2010/11/25 03:48:55 UTC

Re: Weak links

Post by Tad Eareckson »

http://ozreport.com/1.007.0
Bad Day in the Paddock
Davis Straub - 1997/12/27

This report is about a pilot who got hurt today. If you don't want to read about this or see the photos, then this is the time to stop. I used my camera to get some close shots of the results of a fairly bad accident. There were a good number of people standing about around the victim being useless. Some resented my being there with a camera. They didn't seem to close their eyes though.

Belinda and I, Nicki Hamilton and every one on the Canadian team (other than Roger) went out to the paddock at about 3 PM today (the day before the start of the Australian Nationals). It has been blowing all day (and for the last 3 weeks) at about a steady 15 mph and we saw no reason to go out earlier.

I was there to help Belinda fly if the winds calmed down, but they didn't. After taking a few shots I wandered over to the next lane to get a shot of Tova in her purple lyrca flight suit standing next to Conrad Lotten. Maybe we'll print that shot later.

As I took the photo a car drove up and the driver yelled out for Conrad that there had been a bad accident and a pilot had gone in head first about 5 lanes down the paddock. We hadn't seen it. Conrad is an emergency room doctor.

We raced down to the broken glider to find Steve Blenkinsop lying on the ground surrounded by some of his Australian team mates and other pilots. Steve is a top Australian pilot and the Australian dealer for Icaro. His new Laminar ST was lying next to him with the sail ripped and the leading edges and a down tube broken.

Steve was not in good shape. Conrad immediately placed a neck brace on him as shown in this photo:

http://ozreport.com/pub/hurtpilot.jpg
dead

According to witnesses Steve had locked out on tow and dove straight into the ground after getting one wing almost vertical and turning almost backwards to the tow line. It wasn't clear to me if he had released or not or if the weak link broke. What was clear was that the weak link hadn't broken in time and that he hadn't released in time. I'll speculate that as an advanced pilot he was trying to save the tow.

Conrad continued to work with Steve, checking for movement in the hands and arms (he could move them), and eye movement. Conrad noted that one eye didn't track, but that there seemed to be no damage to the eye orbit. This indicated possible internal brain bleeding and pressure on nerves.

Steve suffered significant facial cuts and Conrad tended to these as shown below:

http://ozreport.com/pub/hurtpilot2.jpg
dead

An ambulance had been called and showed up quickly. Given the problems with eye co-ordination Conrad called for Steve to be taken to Griffith for a cat scan. Hopefully Medevac'ed from Hay.

I have towed with the Laminar ST and it is quite a handful on tow. It skates about the sky. The same design that makes the Laminar ST very easy to handle in the air makes it also difficult to tow. You have to be on top of it. One day at Forbes last year I had 9 tows in one day on my Laminar ST. I didn't feel that bad towing it, but it is no Falcon.

I have heard the same about the Moyes CSX. Rohan Holtkamp told me after seeing Steve's accident, that he had added a fin to his CSX to help out on tow. I towed a Moyes SX 164 last year and it was rock solid. SX's have a reputation for being solid tow machines. Of course, the Exxtacy rides on rails.

It would seem that if you are towing with a CSX or Laminar ST, you had better be prepared to correct quickly or get off the line as soon as it gets out of hand. Don't try to save it. Also, be light on the weak link. You need that margin of safety. I'm sure glad that mine broke last year.
Bad Day in the Paddock
Wouldn't it be a lot easier if you just specified the Good Days in the Paddock?
This report is about a pilot who got hurt today.
Pilot or Davis Show caliber dope on a rope?
If you don't want to read about this or see the photos, then this is the time to stop.
Fuck you, Davis...

http://www.hanggliding.org/viewtopic.php?t=14312
Tow Park accidents
Jack Axaopoulos - 2009/11/12 14:49:58 UTC

gasdive,

One of the stated goals of this site is to promote HG. MOST views on this site are NOT from members but from visitors, they have no ignore button.

Having Tad run around every day giving the impression that there is a massive weekly slaughter of pilots at tow parks due to their horribly dangerous devices surely doesnt promote HG. Especially when the safety records are quite excellent.

Like Jim said, theyve gone a decade with no fatalities at their tow park. Pretty damn good I say.

Yet listening to Tad, you would think guys were dying all over the place
He's been nothing but misleading and negative and ignored multiple warnings from me. So He's GONE
We're trying to promote hang gliding here and having you running around every day giving the impression that there's a massive weekly slaughter of pilots at tow parks due to their horribly dangerous devices surely doesn't promote hang gliding - 'specially when the safety records are quite excellent.
I used my camera to get some close shots of the results of a fairly bad accident. There were a good number of people standing about around the victim being useless.
Exactly like what all you fuckin' assholes were doing BEFORE the fairly bad accident.
Some resented my being there with a camera.
That's not very fair. They should just resent you from being there on general principle.
They didn't seem to close their eyes though.
Well, when people have their heads up their asses what's it really matter one way or the other?
Conrad is an emergency room doctor.
So then I guess he's not much of a resource about doing anything about the stupid shit that precipitates these emergencies.
We raced down to the broken glider to find Steve Blenkinsop lying on the ground surrounded by some of his Australian team mates and other pilots.
Well, at least they'd made sure that he didn't get into his harness until after it was connected to his glider.
Steve is a top Australian pilot...
OBVIOUSLY.
...and the Australian dealer for Icaro.
What does he sell in the way of releases to get these things airborne at places like Hay?
Conrad immediately placed a neck brace on him as shown in this photo:

http://ozreport.com/pub/hurtpilot.jpg
Seems to be a problem with the photo, Davis. Did u$hPa have you take it down?
According to witnesses Steve had locked out on tow and dove straight into the ground after getting one wing almost vertical and turning almost backwards to the tow line.
Aw FUCK! Sounds like he wasn't...

http://ozreport.com/rules.php
2015 Big Spring Nationals at Big Spring, Texas
2.0 EQUIPMENT

Appropriate aerotow bridles

Competitors must use appropriate aerotow bridles as determined by the Meet Director and Safety Director and their designated officials. Bridles must include secondary releases (as determined by the Safety Director). Bridles must be able to be connected to the tow line within two seconds. The only appropriate bridles can be found here:

http://OzReport.com/9.039#0
ProTow
Image
and:
http://ozreport.com/9.041#2
More Protows
Image
Image

Pilots who have not already had their bridles inspected during the practice days must bring their bridles to the mandatory pilot safety briefing and have them reviewed. Pilots with inappropriate bridles may purchase appropriate bridles from the meet organizer.
...using an appropriate aerotow bridle as determined by the Meet Director and Safety Director and their designated officials. How the hell do you think something like that managed to happen?
It wasn't clear to me if he had released or not or if the weak link broke.
And there's no fuckin' way any of you total douchebags is ever gonna be able to determine that or what total piece o' shit he was using for a release or what flavor of magic fishing line he was using as the focal point of his safe towing system so we'll just get on with praying for Steve's full and speedy recovery.

How 'bout anyone else? Why would somebody say "It wasn't clear TO ME..." unless it WAS clear TO EVERYONE ELSE? Nobody amongst this group of the top pilots on the planet competing for the world championship thought to see whether his release was open or closed and/or whether or not the focal point of his safe towing system had worked?

Bullshit. I know how to read you lying motherfuckers a lot better now than I did pre Kite Strings.
What was clear was that the weak link hadn't broken in time and that he hadn't released in time.
No shit, Sherlock. Thanks for clearing that up for us.
I'll speculate...
You'll...

http://ozreport.com/forum/viewtopic.php?t=30971
Zach Marzec
Jim Rooney - 2013/02/09 18:30:26 UTC

Sorry for the interruption.
Please continue with the speculation.
I'll be over here, doing something productive.
Jim Rooney - 2013/02/12 18:00:27 UTC

Your second statement is why.
I just buried my friend and you want me to have a nice little discussion about pure speculation about his accident so that some dude that's got a pet project wants to push his theories?

Deltaman loves his mouth release.
BFD

I get tired as hell "refuting" all these mouth release and "strong link" arguments. Dig through the forums if you want that. I've been doing it for years but unfortunately the peddlers are religious in their beliefs so they find justification any way they can to "prove" their stuff. This is known as "Confirmation Bias"... seeking data to support your theory... it's back-asswards. Guess what? The shit doesn't work. If it did, we'd be using it everywhere. But it doesn't stand the test of reality.

AT isn't new. This stuff's been worked on and worked over for years and thousands upon thousands of tows. I love all these egomaniacs that jump up and decide that they're going to "fix" things, as if no one else has ever thought of this stuff?

But back to the root of my anger... speculation.
Jim Rooney - 2013/02/28 01:17:55 UTC

Well said Billo
I'm a bit sick of all the armchair experts telling me how my friend died.

Ah but hg'ers get so uppity when you tell them not to speculate.
Jim Rooney - 2013/03/07 18:24:58 UTC

You're the one advocating change here, not me.
I'm fine.

These are only questions if you're advocating change. Which I'm not. You are.

You're the one speculating on Zack's death... not me.
Hell, you've even already come to your conclusions... you've made up your mind and you "know" what happened and what to do about.
It's disgusting and you need to stop.
You weren't there. You don't know.
All you have is the tug pilot report, who himself says he doesn't know... and HE WAS THERE... and he doesn't know.

Ever heard of "Confirmation Bias"?
Because you're a textbook example.
You were out looking for data to support your preconceived conclusion, rather than looking at the data and seeing what it tells you... which is why this is the first time we've heard from you and your gang.

Go back to Tad's hole in the ground.
While you're there, ask him why he was banned from every east coast flying site.
...WHAT?

http://ozreport.com/forum/viewtopic.php?t=24846
Is this a joke ?
Jim Rooney - 2011/08/28 06:15:12 UTC

You may not know, but Davis is a friend of mine.
Are you sure, Jim? When was the last time you checked? How'd that last dick sucking go?
...that as an advanced pilot he was trying to save the tow.
Yeah Davis...
According to witnesses Steve had locked out on tow and dove straight into the ground after getting one wing almost vertical and turning almost backwards to the tow line.
- That's what he was trying to do. Thought he could fix a bad thing and didn't wanna start over. Just like you...

Image
http://ozreport.com/pub/images/fingerlakesaccident2.jpg
http://ozreport.com/pub/images/fingerlakesaccident3.jpg
Image

...at Finger Lakes.

If he HADN'T been an advanced pilot he'd have just frozen.

It's the intermediate pilots who have the best chances of survival in these low level lockouts... Not so inexperienced that they just freeze and not so hot that they think they can fix bad things instead going with the inconvenience of releasing and starting over.

This is why when you go up for a tandem instructional flight you're best off opting for a low time Hang Three with under a hundred tow flights in his logbook.

And as long as you motherfuckers sit on all the information about the placebo release and weak link your speculation is gonna be better than anybody else's speculation 'cause you been at an around all this plenty long enough to understand what's what and who's who.

- And nobody had ANY IDEA whether or not he made or attempted to make the easy reach to his unspecified industry standard release.
Conrad continued to work with Steve, checking for movement in the hands and arms (he could move them), and eye movement. Conrad noted that one eye didn't track, but that there seemed to be no damage to the eye orbit. This indicated possible internal brain bleeding and pressure on nerves.
Oh good, let's hear all about the aftermath of the pooch screw and forget about the fact that we haven't heard one single syllable about any element of Steve's tow equipment, what the air was doing at launch, what asshole was driving the static line.
Steve suffered significant facial cuts and Conrad tended to these as shown below:

http://ozreport.com/pub/hurtpilot2.jpg
Yeah, great. Anybody get a chance to snap a shot or two of Steve's tow setup? Just kidding.
An ambulance had been called and showed up quickly.
I'm so relieved.
Given the problems with eye co-ordination Conrad called for Steve to be taken to Griffith for a cat scan. Hopefully Medevac'ed from Hay.

I have towed with the Laminar ST and it is quite a handful on tow. It skates about the sky. The same design that makes the Laminar ST very easy to handle in the air makes it also difficult to tow. You have to be on top of it.
Yeah, that's probably why a top Australian pilot and the Australian dealer for Icaro competing at the Worlds ends up locked out and...

42-1520
Image

...standing on his fuckin' ear a few feet off the deck.

53-1704
Image

Skittish glider, top Australian pilot, predisposed to thinking he can fix a bad things rather than starting over. Probably hadn't ever towed one of those before. (You did say it was NEW, right?) Obviously nothing at all to do with launching into the crap conditions that nobody else was flying with the same sorta total crap "equipment" that we see him on here at Hazelwood...

03-02421
http://farm8.staticflickr.com/7200/14097626583_03972773c6_o.png
Image

...six years later.
One day at Forbes last year I had 9 tows in one day on my Laminar ST. I didn't feel that bad towing it, but it is no Falcon.
Well yeah, you've been at an around all this plenty long enough to understand what's what and who's who and Steve's just a top Australian pilot and the Australian dealer for Icaro.
I have heard the same about the Moyes CSX.
Oh good, let's talk about other gliders from other manufacturers now. That way we can keep not talking about anything of any actual substance or relevance.
Rohan Holtkamp told me after seeing Steve's accident, that he had added a fin to his CSX to help out on tow.
Was there some kind of indication that a fin WOULD have helped out on that tow?
I towed a Moyes SX 164 last year and it was rock solid. SX's have a reputation for being solid tow machines. Of course, the Exxtacy rides on rails.
Cool! One can never have too much totally irrelevant information to derail interest in the factors going into a near fatal lockout crash.
It would seem that if you are towing with a CSX or Laminar ST, you had better be prepared to correct quickly or get off the line as soon as it gets out of hand.
Yeah? I fly an HPAT 158 and it's always seemed to me that it was better NOT to be prepared to correct quickly or get off the line as soon as it gets out of hand. Do they teach this alternative strategy at Quest or Cloud 9 so I can get properly wired for flying a CSX or Laminar ST?
Don't try to save it.
Not so fast. Let me write that down... Don't try to save it. OK... Got it. Please continue.
Also, be light on the weak link.
How light? OBVIOUSLY this top Australian pilot and Australian dealer for Icaro was WAY too heavy on the weak link. So what should we muppets be using to very clearly provide protection from excessive angles of attack, high bank turns, and the like for that form of towing? Gs, pounds, fishing line flavor, knots, installation?
You need that margin of safety.
Fuck yeah!

http://ozreport.com/forum/viewtopic.php?t=24534
It's a wrap
Davis Straub - 2011/07/31 17:55:25 UTC

To break under load before the glider does.
You sure don't want your glider breaking under load in a lockout the way Steve's almost did before it hit the ground and disintegrated.

And speaking of Steves...

http://ozreport.com/13.003
Forbes, day one, task one
Davis Straub - 2009/01/03 20:50:24 UTC
Forbes Airport, New South Wales

Steve Elliot came off the cart crooked and things went from bad to worse as he augured in. He was helicoptered to Orange and eventually to Sydney where the prognosis is not good. I'll update as I find out more.
Why do you think Steve Elliot wasn't using a weak link that didn't give him much safety margin? I'm guessing it was a lot stronger than Steve Blenkinsop's 'cause the second crash ended a lot worse. Twelve years later ferchrisake. When will we ever take these lessons to heart and get serious about safe towing?
I'm sure glad that mine broke last year.
And I'm sure glad that yours held long enough at Finger Lakes to get your fucking face smashed into your demo Sport 2.

And I'm also sure glad that Zack Marzec's broke when it did two and a half years ago and totally destroyed the reputations of all you sleazy fishing line salesmen and put a permanent end to over three decades worth of light weak link scam.

Care to say anything about ACTUAL RELEASES, Davis? Didn't think so.
Davis down under
Presently in Hay, New South Wales
Not down under anywhere near far enough, Davis. But I never give up hope.
User avatar
Tad Eareckson
Posts: 9150
Joined: 2010/11/25 03:48:55 UTC

Re: Weak links

Post by Tad Eareckson »

http://ozreport.com/1.009
Update on Steve Blenkinsop
Davis Straub - 1997/12/30

Spoke with Conrad Lotten yesterday. He said that Steve didn't suffer in brain damage. Considering that possibility, he is "lucky" to come away with a compound fracture of the jaw and a broken nose.
- NO brain damage? That means no concussion. We never heard that he lost consciousness. So did his memory get wiped or not? We haven't heard that it did and we probably would have if it had. Wiped memories make things a lot easier on the cover-up crews.

- Not that I really give all that much of a flying fuck but do we get to hear whether or not he was using a full face helmet? If he was:
-- then we have a problem with just how much of a safety benefit a full face helmet really is
-- not then we have a problem with the meet heads not mandating them

I'm guessing he wasn't 'cause that would've been REAL problematic with the issue of Conrad immediately putting a neck brace on him.

http://ozreport.com/1.010
Further Update on Steve Blenkinsop
Steve is still suffering from double vision.
Small world. The PacAir Double Vision was the tandem glider four people suffered from within the span of a few years prior. On 1991/12/15 Bo Hagewood two thirds killed himself and three thirds killed Michael Elliot, his twenty-seven year old Hang Two student, at the Lockout LZ. And then on 1996/07/25, just seventeen months and two days prior, Bill Bennett and Mike Del Signore were killed at Gates Field in Ohio immediately after the tug weak link increased the safety of their towing operation. (Dave Farkas, their driver, had nothing to do with the issue because it's a fundamental tenet of our sport that the driver can have no influence on the safety of a tow.)
We don't know the exact cause.
How 'bout going into a ninety degree lockout, spinning back 180 degrees to straight downwind of tow, and slamming into the runway? Could that have been a factor? Just a thought.
He has been transferred to a hospital in Albury (near Bright and Mt. Beauty the home of the Bogong Cup) which can do the work on his jaw. A friend of his drove out to Hay and came out to the paddock yesterday to thank me for putting the notice about Steve on the HG digest (in this newsletter). I was a little concerned about what I wrote and photographed about his accident, so it was nice to hear the appreciation.
Don't worry. You'll ALWAYS get a lot of appreciation after publishing loads of obfuscatory and irrelevant crap after one of these disasters.
Many people wrote to offer condolences.
Any of those total fucking assholes wrote to ask about any issues of any substance? Just kidding.

And this is the LAST we here of this near fatal Davis pecker measuring contest tow eight issues after the birth of the Oz Report.

Neither Steve nor anyone else never bothers to tell anybody the tiniest detail of how things were being done, what was being done wrong, how anything could've been done any better.

And new people come into this sport, look around, figure this bullshit perfectly normal, and adjust accordingly.

http://www.hanggliding.org/viewtopic.php?t=27396
Scooter tow faillure... or Never Land On Your Face
Mitch Shipley - 2012/10/22 19:04:16 UTC

We engage in a sport that has risk and that is part of the attraction.
Risky sport, shit happens, but that's what makes it fun. Don't like it? Stay home and play checkers.
User avatar
Tad Eareckson
Posts: 9150
Joined: 2010/11/25 03:48:55 UTC

Re: Weak links

Post by Tad Eareckson »

http://ozreport.com/forum/viewtopic.php?t=43279
Concerning Dennis Pagen
Bill Cummings - 2015/07/18 18:00:53 UTC

If I remember, it was Graeme that advanced the text about not being able to attack an anonymous person.

Galileo Galilei did not publish anonymously. His book comparing two theories about the Earth being the center of the Universe to a different theory of the planets orbiting our sun (Copernican system and the Ptolemaic system) ran counter to the beliefs of those in power.
Galileo was found to be, "vehemently suspect of heresy," so he was confined to house arrest, his previous writings were banned and also any future writings.

During my research for this post I came across this: Galileo's fiercest detractor, Cesare Cremonini, when presented with an opportunity to view the truth, refused to look through Galileo's telescope. All at once the name Graeme Henderson leapt into my mind...
I also discovered that when I laugh so hard that I blow spittle on the computer screen it reveals a multitude of mini rainbows.

Concerned Guys, ridgeliftguys1, remaining anonymous is an idea that might even pass muster with Bob K. at this point in time.
It is quite possible that the demand to know who an anonymous person is will be made by someone that wants to attack the person when the text can’t be.
Facts are facts being anonymous will not change that.
The monopoly power will always strive to hold power and leave nowhere else to turn.
If the monopoly can hold intimidation over your head do you think they will not do it?

Galileo must have been too stupid to realize this even while spending the rest of his life under house arrest.

A little anonymity would still have had the earth going around the Sun and Galileo going around town.
Catch that, Kinsley?

http://www.hanggliding.org/viewtopic.php?t=16265
weaklinks
Kinsley Sykes - 2010/03/18 19:42:19 UTC

In the old threads there was a lot of info from a guy named Tad. Tad had a very strong opinion on weak link strength and it was a lot higher than most folks care for. I'd focus carefully on what folks who tow a lot have to say. Or Jim Rooney who is an excellent tug pilot. I tow with the "park provided" weak links. I think they are 130 pound Greenspot.
http://ozreport.com/forum/viewtopic.php?t=24846
Is this a joke ?
Kinsley Sykes - 2011/08/31 11:35:36 UTC

Well actually he didn't. But if you don't want to listen to the folks that actually know what they are talking about, go ahead.
Feel free to go the the tow park that Tad runs...
http://ozreport.com/forum/viewtopic.php?t=30971
Zach Marzec
Kinsley Sykes - 2013/02/11 17:46:12 UTC

Because this has been beaten to death - google Tad Eareckson and try to read the mind-numbing BS. Most of the folks who have been towing for decades have worked this stuff out.

The reason for the vehemence of the response is they pile on to any AT accident, with no knowledge of the cause, and trot out the, if only he had a strong weaklink, nothing would have happened.

It's fine to want to work on better solutions to make us all safer by improving technology, it's ugly and inhuman to use the death of a really nice guy to advance your point... in case it wasn't obvious I agree with Bart and Jim, and no it's not a lack of english comprehension - he said there would have been a different outcome with a stronger weaklink.
Kinsley Sykes - 2013/02/17 16:04:16 UTC

Deltaman and Zach seem to be jumping on Jim for not using facts.. while not using RELEVANT facts to make their case.. When these guys agree with themselves on a forum where they all talk to each other, (http://www.kitestrings.org/forum2.html) no big deal, but I worry that folks will read the lack of response as some sort of endorsement of these positions. Actually, if you are on the fence, but think maybe these "strong weaklink" guys have a point, please go to that forum and read through it. Then see if you want to trust your life to their theories..

I do think that doing things that question long held beliefs it good. People thought Galileo was a heretic and also were fond of the earth being flat. I am sure we can do things better in towing, just would like that to be fact based, not just conjecture.
Notice that the aerotowing universe is no longer rotating around Jim Keen-Intellect Rooney, who is an excellent tug pilot, and his magic one-size-fits-all fishing line? Notice that when you focus carefully on what folks who tow a lot have to say the folks who tow a lot aren't saying anything? 'Specially not anything about fishing line and the guy named Tad in the old threads?

So who's running the flight parks now? And under what THEORY are they running them...
Jim Rooney - 2011/08/26 06:04:23 UTC

Troll

Hahahaha.
That seriously made me chuckle.

I get what you're saying Christopher.
Please understand that I'm not advocating professional infalliblity. Not really sure where I mentioned that, but I can understand where you might have drawn that assumption. None the less, I simply refer to "us" as the "professional pilots" as a term to describe the pilots that do this for a living. Yes, we're just humans... bla bla bla... my point is that we do this a whole sh*tload more than the "average pilot"... and not just a little more... a LOT.

We discuss this stuff a lot more as well. We vet more ideas. This isn't just "neat stuff" to us... it's very real and we deal with it every day.

It's not "us" that has the track record... it's our process.
We're people just like anyone else. And that's the point. THIS is how we do it... normal, fallible humans... and it bloody well works.

So I don't give much credence to something that someone doesn't agree with about what we do for some theoretical reason.

Take this weaklink nonsense.
What do I "advocate"?
I don't advocate shit... I *USE* 130 test lb, greenspun cortland braided fishing line.
It is industry standard.
It is what *WE* use.

If someone's got a problem with it... we've got over ONE HUNDRED THOUSAND TANDEM TOWS and COUNTLESS solo tows that argue otherwise. So they can politely get stuffed.

As my friend likes to say... "Sure, it works in reality... but does it work in theory?"
Hahahahhaa... I like that one a lot ;)
...now that the accepted standards and practices changed and 130 pound greenspun has totally one hundred percent stopped working in REALITY?
Post Reply