Releases

General discussion about the sport of hang gliding
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Tad Eareckson
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Re: Releases

Post by Tad Eareckson »

http://www.hanggliding.org/viewtopic.php?t=28759
Karen Schenck? (I think)
Jim Gaar - 2013/04/02 15:51:10 UTC

HOLY shit where was the guy in the back looking!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Think you have enough exclamation points there, Rodie?
Why did he not look over the hookin!!!
He didn't need to look over the hook-in!!! The hook-in's fine!!! It's really tough to launch unhooked from platform.
The hook-UP however was a bit problematic.
In MY WORLD that is his/her PRIMARY job. Image
In your fuckin' idiot vile little world...
- polypro towline
- bent pin barrel releases
- Marzec Links
- Matt Taber
- Jim Rooney
...are all just fine.
WTF people...
You're just hearing about this one?
There was plenty of time for the pilot to get himself off but that's one time I would have cut the line or at the very least dumped pressure.
Yeah, I think everybody had that pretty well figured out by 0:54.
This SHOULD NOT BE HAPPENING!
No shit, Sherlock.
Brad Barkley - 2013/04/02 16:01:30 UTC

Totally agree.
Yeah Brad...

http://www.ushawks.org/forum/viewtopic.php?f=2&t=1157
Accident information please.
Bill Cummings - 2013/02/12 02:24:20 UTC

The cause of the accident is posted below the video by son Scott.
Thanks Scott and Bob B. This may well save pilots from the same accident.
Warren Narron - 2013/02/12 02:24:20 UTC

This is not really an accident.

This is hard to watch.
Who is the winch operator?
Warren Narron - 2013/02/12 03:09:12 UTC

Bob may try to take all the blame for this but that's not the way I see it.
Bob knew he was in trouble long before the 'safety' man in the truck knew it.
If he had a release that would have worked without taking his hands off the control bar, he could have saved himself. I can't imagine how long it must have seemed waiting for the safety man to cut him some slack...
Warren Narron - 2013/02/13 02:19:21 UTC

Ok, I'm walking back my previous knee jerk comment. I regret and am sorry for pointing fingers of blame as it's now come out that these were build partners of a new system and the winch man wasn't any more experienced than Bob. I was reading into the story that Bob was getting instruction from an established operator. This was a horrible mistake and ultimately Bob the pic, paid the price. I wish him the best in recovery.
There, but for the grace of God, go I.

I'm sticking with my other comments about the obvious piece of crap release Bob was using.
If he could have released without taking his hands off the basetube, this disaster could have been averted.
I don't think there's a whole lot of disagreement on this one. So what's that helping?
And it depends so much on the skill and experience of the operator.
Bull fucking shit. A ten year old kid who'd never been near a glider before could've handled that one if he had just been watching the glider.
I have truck towed dozens and dozens of times with Steve Wendt at Blue Sky, and never have even come close to having an issue, or known anyone with any kind of safety issue on tow.
Talked to Holly Korzilius...
http://www.chgpa.org/forums/viewtopic.php?f=2&t=587
Holly's Accident
Scott Wilkinson - 2005/05/30 03:16:49 UTC

At an altitude somewhere between fifty and a hundred feet (we don't know for sure) there was a lockout situation with the glider at a near ninety degree angle. When a line broke (I don't know which one), Holly's glider recoiled backwards, almost fully inverted, then partially recovered in a dive toward the ground.

Steve saw Holly pulling in for speed. He speculated had she been ten to twenty feet higher, she might have made it... and ten to twenty feet lower, she could have died. Whatever the case, she hit the ground hard at something less than a vertical angle. Her Charly Insider full-face helmet was broken through in two places (the chin and next to her eye), and Steve believes the breaks absorbed some of the impact and probably saved her life.
...about that?
Based purely on my experience at Blue Sky, truck towing feels to me like the safest and easiest way to get airborne.
Zack C - 2011/03/04 05:29:28 UTC

As for platform launching, I was nervous about it when I started doing it. It looked iffy, like things could get bad fast. I've since logged around a hundred platform launches and have seen hundreds more. Never once was there any issue. I now feel platform launching is the safest way to get a hang glider into the air (in the widest range of conditions). You get away from the ground very quickly and don't launch until you have plenty of airspeed and excellent control.
But again, that probably depends on the operator, as we see in the horrifying video above.
In a platform tow the bridle is routed UNDER the basetube. This does not count as a platform tow.
Nate Wreyford - 2013/04/02 16:25:35 UTC
Austin

In the vid above, PIC had a major role. Pre-flight fail and failure to just get off tow!
Thanks for pointing that out, Nate.
I couldn't agree more about it feeling safe and being easy.

I love using a winch to get up.
Mike Badley - 2013/04/02 17:03:42 UTC

Ahhhh... $$##$$))H!!!

That really does look like what probably happened to Karen. Calling for more pressure would have REALLY made it worse.
Bullshit.
I am not looking at that as a true 'lockout' which I think is more classically too high brake pressure and an extremely high angle of attack followed by the involuntary wingover slam as the glider stalls out.
Bullshit. You get the tension required to sustain a glider in flight misaligned enough, it's gonna lock out.
What is this called then??
A lockout.
We always use a pre-flight checklist when platform towing that has 'dialogue' between pilot and tow vehicle operators. That checklist would have included checking the tow line 'under' the bar with the release set up right by the TOW operator - because it is a 'check' against something the pilot originally did. The pilot would check the disk pressure and nose release because that is something the TOW operator did. Cross checking each other makes for 'non-events'. Footlaunching requires radio checklist with driver.
And once the "hooked-in" box has been checked the pilot is assumed to be hooked in from that point on until he lands, crashes, or is observed dangling from the basetube - whichever comes first.
I admit that one time I got so distracted by a wuffo asking me tons of questions while I was setting up the bridle connection to the tow rope that I completely forgot to hook in.
Why should that matter? You always do and your driver always requires and observes...

http://www.youtube.com/watch?v=2haXF9y7BWI
Scooter Towing the Moyes Ventura
Sparkozoid - 2012/11/28
dead

...a hook-in check, right?
The end result was that I ran until I couldn't run any further, flopped down on my belly which pulled the link-knife (because it is attached to my harness) and watched my glider float up for a bit before settling back to earth. For a moment I did not connect the dots and thought it was so strange seeing my glider fly off without me.
Guess not.
After that - I added the "HOOKED IN" part to the verbal checklist prior to the "TAKE UP SLACK" command to the driver.
And THAT WAY you make it perfectly safe for everybody to skip doing and requiring...

http://www.youtube.com/watch?v=u51qpPLz5U0

06-0818
Image
07-0913
Image
08-0924
Image
09-0929
Image
10-1003
Image
11-1118
Image

...hook-in checks!
I can see how this looks like the drum pressure is set wrong on the launch because the glider doesn't climb out. So the tow operator doesn't see the problem and dump pressure.
But the glider drifting off to starboard, locking out, and slamming in is perfectly OK.
It sure looks like the pilot had plenty of time to ABORT tow by pulling the release, but his lack of tows didn't make him cognizant of the problem and he fights for control rather than just pinning-off.
Right Dave. This total asshole just thought he could fix a bad thing and didn't want to start over. Nothing to do with him needing BOTH hands to fly the glider in that situation and the release lanyard being "within easy reach".
Man, when I find myself skimming the ground instead of climbing out, I don't wait - I just pull the release and float down for another try.
Well I'm absolutely positive you'd have done JUST FINE in that situation, Michael.
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Tad Eareckson
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Re: Releases

Post by Tad Eareckson »

http://www.hanggliding.org/viewtopic.php?t=28759
Karen Schenck? (I think)
aireout - 2013/04/02 18:23:07 UTC
Arizona

In the case of the accident video attached to this thread, there is some debate if the line over the bar caused a "lock-out".
WHO THE FUCK CARES? What are ya gonna do? Determine that the line over the bar really wasn't a factor in the lockout and tell everyone that it's OK to route the line over the bar?
It is my opinion, as the accident investigator for this case, that the line over the bar caused a loss of control.
No shit.
This may have progressed into a more classic lock-out...
How much more classic did you really need?
...if the terrain had not intervened.
DAMN THAT INTERVENING TERRAIN! That's a significant issue in SO MANY hang gliding accidents.
I was wondering if this mistake has happened previously and with what results.
WHO THE FUCK CARES? Of what POSSIBLE use could information like that be?
I sure recommend the use a check list for platform tow. One was not used in this case.
Well, your job is done then! And, I might add, VERY WELL!!!

Any thoughts on...
Doug Hildreth - 1991/06

Pilot with some tow experience was towing on a new glider which was a little small for him. Good launch, but at about fifty feet the glider nosed up, stalled, and the pilot released by letting go of the basetube with right hand. Glider did a wingover to the left and crashed into a field next to the tow road. Amazingly, there were minimal injuries.

Comment: This scenario has been reported numerous times. Obviously, the primary problem is the lack of pilot skill and experience in avoiding low-level, post-launch, nose-high stalls. The emphasis by countless reporters that the pilot lets go of the glider with his right hand to activate the release seems to indicate that we need a better hands-on way to release.

I know, I know, "If they would just do it right. Our current system is really okay." I'm just telling you what's going on in the real world. They are not doing it right and it's up to us to fix the problem.
...incorporating a release system which allows the pilot to abort a tow with BOTH hands on the basetube so that if he gets hit with something down low or fails to route the line properly he doesn't hafta get his brain pulped as a consequence? Just kidding.

(Idiot fucking waste of space.)
Mike Badley - 2013/04/02 19:32:25 UTC

Watched that video very carefully this time. It's amazing how much can go wrong in five seconds.
Hey dude... In this game it's amazing how much can go wrong in ONE second.
Pilot releases at 42 seconds.
Pilot LAUNCHES at 41 seconds. Pilot NEVER releases.
Glider angles up slightly (normal because they launched at 35 mph and the glider just responds to the speed bleed by pitching up a little). BUT...

At 44 seconds the tow bridle sort of catches the base tube and makes the pilot swing his hips to the pilot's right - which is just the way to start a slow flat turn. The glider does this and between 45 to 50 seconds the pilot has NOT lost control, but is stalled slightly to the right and can totally avoid any of the subsequent BS by just pulling his release.
BULLSHIT. He CAN'T JUST PULL HIS RELEASE. He's gotta let go of the basetube with one hand, find the lanyard, pull the lanyard, grab the basetube, and start flying the glider again. And there's no guarantee that he's gonna live long enough to do all that.
There is very little pressure...
TENSION ferchrisake.
...on the tow line because he is just sinking out and drifting.
Bull fucking shit.

It's a tension controlled system and as long as the glider's pulling out line the tension stays EXACTLY THE SAME *REGARDLESS* of what the glider's doing. And in this incident the glider is CONTINUOUSLY pulling out line.
I'm sure the tow line is sawing on the base tube some...
No, the BRIDLE is.
...but it never looks like a lot - and you'd think that it would catch the pilot's left DT and yank the glider to the left back toward the truck and pitch it down.
Huh? If the bridle goes up against the left downtube - which it does - it's gonna lock the crap out of the glider to the right - which it does.
Finally at 51 seconds he plows in hard in a stalled right turn...
Lockout.
...because he is STILL attached to the tow rope and it sort of accentuates the crash velocity.
No shit. What's your point?
I almost think that any time in those five seconds when it started going wrong, if he would have gotten off the tow - it would have been a non event or just another whackamole with a busted DT.
No shit. Any thoughts on why he didn't do that - other than being the total asshole we've all agreed he is - or how we might engineer a system to allow the pilot to safely accomplish that in an emergency situation? Just kidding.
I am also fairly certain that the tow operator didn't see this as a lockout because the pilot is just drifting and not climbing out rapidly prior to a classic lockout. He didn't process the problem correctly because he didn't understand the bridle problem that was causing it.
Really hard to fault your logic, dude.
I'm no tow king - but I've done it enough on several different rigs and types (platform, aerotow, static-foot and turnaround pulley with carts) and seen lots of dumb-ass mistakes. A pilot that would ride a bad tow into the ground is just a case of 'deer in the headlight' freeze-ups.
Yeah, isn't it fuckin' amazing how often all these assholes with...

http://ozreport.com/forum/viewtopic.php?t=30971
Zach Marzec
Kinsley Sykes - 2013/02/18 14:32:01 UTC

All releases have the potential to fail, even very well designed ones.
Swift - 2013/02/18 22:28:18 UTC

A release that requires moving a hand off the base tube to operate has already failed.
...releases that require moving a hand off the basetube to operate have these cases of 'deer in the headlight' freeze-ups while the assholes with releases that don't require moving a hand off the basetube to operate...

http://ozreport.com/forum/viewtopic.php?t=14221
Tad's release
Tad Eareckson - 2008/12/16 16:14:02 UTC

Anybody else ever notice that the ONLY AT pilots we hurt or kill are the ones who have to reach for their release actuators?
Paul Farina - 2008/12/16 16:42:24 UTC

I rest my case.
...never do? Really weird. Must have something to do with personality types.

Idiot.
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Tad Eareckson
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Re: Releases

Post by Tad Eareckson »

http://www.hanggliding.org/viewtopic.php?t=28759
Karen Schenck? (I think)
Dave Hopkins - 2013/04/02 20:14:23 UTC

I had the same experience foot launching > not hooking in...
Yeah Dave, big surprise.
...with a hewit bride.
Yes Dave - a hewit bride. That would be Helen.
I was skipping across the ground on my chute. Finally figure I need to hit the release.
Right. You couldn't just blow it. You had to figure out you needed to hit, find it, and hit it.
pretty much a non-event, but an eye opener.
Yeah Dave...
Chris McKee - 2005/10/03

I really hope this is a wake-up call to all of us old and new pilots alike and that you realize you are mortal.
A good wake-up call.

But hey, it was pretty much a nonevent and...

http://www.hanggliding.org/viewtopic.php?t=23476
Aborting launch ...as a technique
Dave Hopkins - 2011/10/04 23:57:12 UTC

We can abort on most slope launches. if it goes bad in the first couple steps We can put on the brakes and get away with a dropped nose or small ground loop.
Also if we are not hooked in we should be aware that the glider has flown too high and we can let go of it before we get into the air or going to fast . I teach this on the training hill. we should let the glider fly off our shoulder and be very aware that the strap is tight . If the glider keeps going up let it go.
...you have this great technique for seeing if the glider starts going high a couple of steps into launch and aborting if it does.

Idiot.
Jim Gaar - 2013/04/02 20:22:12 UTC
Mike Badley - 2013/04/02 17:03:42 UTC

I am not looking at that as a true 'lockout'...
Then you as PIC or observer would be dead wrong. A lockout is a lockout.

And the guy in the back never even looked at the wing as it went in, nor much prior to going in...

There are USHPA PL test questions that deal with this exact type of crash.
There are FAA aerotowing regulations that deal with the exact type of crashes that killed Jeremiah Thompson, Arlan Birkett, and Zack Marzec. But stupid pigfuckers like you just ignore them.
The test has been around for YEARS. Why do you think that is?
I dunno... We've had THIS:
With each flight, demonstrates a method of establishing that the pilot is hooked in just prior to launch.
USHGA regulation for every flight for every rating on the books since 1981/05 and there's not a shred of evidence that it's ever been implemented, required, taught, enforced by a single USHGA Instructor and it's next to impossible finding anyone who actually does it. Why do you think THAT is?
He didn't process the problem correctly because he didn't understand the bridle problem that was causing it.
Bullshit. Stop making excuses for this poor guy. He fucked up big time.
Did he? How the fuck do you know?

We don't know a single goddam thing about this guy. He may very well have been:
- just some poor jerk who came along along to see what this hand gliding thing was all about and offered to help out
- instructed just to watch a gauge and and adjust a knob accordingly

And it's not really the job of some guy on the back of the truck to fly the glider and make go / no go calls. That's primarily the job of the glider and secondarily the job of the driver.
I would never let him on my rig ever again.
- I'd never let anybody about whom I gave a rat's ass anywhere near your rig or you.

- There are no laws or USHGA regulations covering surface towing and the people involved in it.

- There ARE however federal regulations covering aerotowing and the people and equipment involved in it.

-- And two months and two days ago Mark Frutiger deliberately pulled a pro toad into a monster thermal at 150 feet using a dangerously light weak link at the front end and an extremely dangerously understrength marginally legal or illegal weak link on the back end which he fully expected to blow when the glider pitched up.

-- And consequently the glider ended up in considerably worse shape than Bob Buxton did.
-- And you're perfectly OK with the guys on both ends of that string and the commercial operation running the show.
-- So get fucked.

- You wanna permanently ground everyone in hang gliding who's ever fucked up bigtime? Good freakin' luck finding anyone to fly with.

- Barring any other information I'd put that guy on the back of my rig next weekend. He probably feels like total shit about what happened and he'd probably be the most attentive observer on the planet for the rest of his life.

- Compare/Contrast with the shits at:
-- Quest and their colleagues and allies who are denying that anything was done improperly in the Zack Marzec negligent homicide.
-- USHGA who five days after Zack Marzec was snuffed deleted all references to weak links and other aerotowing equipment from the SOPs.

Asshole.
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Tad Eareckson
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Re: Releases

Post by Tad Eareckson »

http://www.hanggliding.org/viewtopic.php?t=28759
Karen Schenck? (I think)
Mike Badley - 2013/04/02 23:26:19 UTC

Well, I'm hoping that if it had been your rig, you wouldn't have let him hook his bridle OVER the base tube. Image
What makes you hope that? He's perfectly willing to pull people with the:
- spinnaker shackle that killed Robin Strid
- Quallaby Release that killed Mike Haas
- Lookout Release that:
-- locked up on Ralph Sickinger and stalled Sunny Venesky's tug
-- killed Roy Messing
- bent pin release that welded itself shut on Bart Weghorst and killed Steve Elliot
- front end weak link that killed Jeremiah Thompson and Arlan Birkett
- pro toad bridle and Rooney Link that killed Zack Marzec

What difference does it make HOW you kill somebody as long as he's killed?
No excuses for the pilot or really even the tow crew - but it's a learning experience for everybody.
BULL FUCKING SHIT!!! What is there to learn?
- Don't route the line over the basetube for a platform tow?
- It's more important to watch the glider than a gauge?
- There's no such thing as "within easy reach" when the shit hits the fan?
- Weak links make really shitty lockout protectors?
- That when somebody goes in he's gonna go in head first?

There is NOTHING to learn from this for ANYBODY *CAPABLE* of learning anything. There NEVER is as a consequence of a crash or unhooked launch.
It's too bad he was injured, but lucky he didn't pile it in fatally.
Damn near close enough.
I believe the questions on the PL test are there to test your theoretical knowledge of being in a bad place (low, twisted and off centerline) and what choices you have.
Yeah. Let's start talking THEORY...

http://ozreport.com/forum/viewtopic.php?t=24846
Is this a joke ?
Jim Rooney - 2011/08/26 06:04:23 UTC

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 ;)
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?

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.
Jim Rooney - 2013/02/13 19:09:33 UTC

It amuses me how many people want to be test pilots.
It amuses me even more that people...
A) Don't realize that "test pilot" is exactly what they're signing up for and B) actually testing something is a far more involved process than "I think I just try out my theory and see what happens".

Allow me to repeat... hundreds of thousands of tows.
Sure, there's other stuff out there too. Some of it even has a number of tows behind it... but hundreds of thousands is a very large number.

That's not "religion" my friend.
The shit works. It works in reality and it works consistently. It's not perfect, but Joe-Blow's pet theories have a very high bar to reach before they are given credence.
Kinsley Sykes - 2013/02/17 16:04:16 UTC

Deltaman and Zack 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..
Jim Rooney - 2013/02/27 09:45:26 UTC

The world is a whole lot different in the driver's seat.
It's just so damn easy to sit back at the keyboard and explain theoretical situations and reactions.
Actually doing it, well that's just a whole other thing.
http://ozreport.com/forum/viewtopic.php?t=31052
Poll on weaklinks
Jim Rooney - 2013/03/10 08:12:02 UTC

Sorry Zack
If you were hear to understand something or to have a rational discussion, then we might have something to talk about.
But alas, you're just here to argue.
You've got all your BS theories set in your head and you're just spouting them.
...with respect to hang glider towing. Good freaking luck.
Much like laying in your harness slung from a tree and tossing your chute - you just can only simulate the panic just so much.
You can simulate the panic pretty good. It's a little tougher to simulate the G forces preventing you from being able to reach your deployment handle or the spinning glider eating your parachute if you manage to get it out.
I believe there's only ONE choice and that is to yank that release way before the feces hit the air moving device.
I fully respect your belief system - just as I fully respect the belief system of the Jehovah's Witnesses. The problems are that:

- If everyone yanked that release way before the shit hit the fan nobody would ever get more than twenty or thirty feet off the ground.

- Since air is invisible very few people know that the shit's about to hit the fan.

- If everybody yanked that release while the shit was hitting the fan the fatality rate would go WAY up.

- Since virtually no one thinks there's an advantage to using a release which allows one to blow tow while retaining and maximizing glider control in most cases in which control is a critical issue yanking that release will only serve to shorten your life expectancy by two to three seconds.
You just don't really have time to do much else.
Sorry dude. In situations like with configurations like this you just don't really have any great options.
That really is the biggest gripe I have with this whole incident - WHY DOESN'T HE PIN OFF THAT TOW?
Look motherfucker...

- This guy got his Hang Four on 1981/10/16 - a year and a half after I got my Hang Two.

- His USHGA Number is 12683, mine's 32674, and yours is 49316.

- He fucked up with the bridle routing but he's the guy in the driver's seat feeling the forces and reactions and dealing with the situation with the equipment he has available.

- You're sitting in front of a fucking computer display.

DON'T YOU DARE PRESUME TO BE TELLING EVERYBODY WHAT HE *SHOULD* HAVE BEEN DOING AT THAT POINT.

It's highly likely that he salvaged the best outcome possible out of that situation and it's not your call to second guess him 'cause there's no way to predict:

- how long it would've taken him to blow the release

- definitively how the glider would've responded to interrupted control

- if he'd have been able to get to the lanyard before slamming in

- how hard he'd have slammed in as a consequence of surrendering control relative to how hard he slammed in by continuing to pilot his aircraft all the way down

And JUST MAYBE he was trying to buy some time in the unfulfilled expectation/hope that the front end guys would wake up and do something to help him out.
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Tad Eareckson
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Re: Releases

Post by Tad Eareckson »

http://www.hanggliding.org/viewtopic.php?t=28759
Karen Schenck? (I think)
Diev Hart - 2013/04/02 23:44:14 UTC

I will take a guess.....lack of experience, not knowing when to give up, thinking he could fix a bad thing...
Yeah Diev...

http://www.hanggliding.org/viewtopic.php?t=25435
Raunchy Day At The Ridge + Release Failure
Diev Hart - 2012/03/06 01:06:39 UTC

Right there (I think) is the main issue...some pilots think they can fix a bad thing and don't want to start over.
He was probably trying to get the glider straightened up so he could continue the tow with the bridle over the bar and not hafta start over with the bridle under the bar - all the way until he locked out to the right and slammed in still connected.
...it was not drilled into his head to give up as soon as there are any issues...
Yeah, he probably just had no idea that it would be a good idea to throw in the towel when things were a bit less than optimal because his instruction wasn't as top notch as yours.

Or maybe his instruction was even better...

http://www.hanggliding.org/viewtopic.php?t=18868
Almost lockout
Ryan Voight - 2010/09/07 02:50:00 UTC

Weak link in truck towing WILL (read: should) still break in a lockout situation... but as everyone has already pointed out, it takes a lot longer because the glider can continue to pull line off the winch.

There is a limit to how fast line can come off the winch though... so the forces still build up, and the weaklink still fails.
...and he was just patiently waiting for his weak link to do what it was designed to.

Or maybe he was under a lot of load...

http://www.hanggliding.org/viewtopic.php?t=22540
LMFP release dysfunction
Diev Hart - 2011/07/14 17:19:12 UTC

I have had issues with them releasing under load. So I don't try to release it under a lot of load now.
...and knew enough not to try to release then.

Or maybe...

http://www.hanggliding.org/viewtopic.php?t=14663
Aerotow Incident
Diev Hart - 2009/12/02 06:45:13 UTC

I'm Tad...

..."well now if you had my mouth release this would have never even been an issue"...

The same goes for the finger string on the basetube release for that matter...
http://www.hanggliding.org/viewtopic.php?t=25527
Mouth AT Releases
deltaman - 2012/03/13 15:52:32 UTC

I would like to show you this kind of emergency mouth releases for the first meters (the most risky) of an AT flight.

Image
Diev Hart - 2012/03/13 16:52:53 UTC

I want a remote barrel, that looks simple enough...how much?
...he didn't have a release that was worth shit in an emergency.
...but just a guess.
Yeah. (Fuckin' moron.)
Jim Gaar - 2013/04/03 04:35:04 UTC

My bad...

Yes I was harsh. I believe it's my age...
Nah, it's your IQ - which is a lot lower than your age.
...and the repetition of this kind of tragedy.
Really? So just how many serious crashes have there been as consequences of the bridle being routed over the basetube?
In order of full disclosure: I would never have anyone in the back of my tow rig except those with absolutely no responsibility other then to stay out of the way.
But it was OK to ream the guy who was in the back of Bob's rig.
Removing this person clears the line of responsibility...
And removes an option which might save someone's life...
...and directs to to the Driver and ultimately the Pilot In Command.
At 0:44 the driver became the Pilot In Command and Bob was little more than a passenger.
Here in Kansas pilots have been platform launching for around 30 years.
And in all that time have never done shit to get a release that didn't stink on ice into circulation.
We've never had a spotter, cutter, guillotine operator, or pressure controller in the back.
As was the situation on Bob's flight. Good to hear that he'd probably been just as fucked with you guys.
We started on ATOL rigs (Air Time Over Lubbock) mounted on trucks or trailers. Texas pilots have been towing at least as long as Kansas pilots have!
Your point being?
It really hurt my heart to watch that pilot crash. I'm sending good KARMA. It's the best I can do... :?
No argument with that point.
Jim Gaar - 2013/04/03 04:35:55 UTC
...but just a guess.
And a damn good one...
Asshole.
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Tad Eareckson
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Re: Releases

Post by Tad Eareckson »

http://www.hanggliding.org/viewtopic.php?t=28759
Karen Schenck? (I think)
Dave Hopkins - 2013/04/03 12:58:03 UTC

Sorry Rodie, I would not tow on a rig that did not have a dedicated winch operator.
But you're totally cool with skipping hook-in checks, Rooney Link lockout protectors, and releases totally inaccessible in emergencies.
It saved my life once...
Because you had no means of releasing yourself when the shit hit the fan.
...and I have help many young pilots on tow by releasing pressure when they get yawing.
Do you just help YOUNG pilots? Bob was yawing off track and could've REALLY used a tension dump.
The lockout I was in happened so fast I did not have time react before I was almost 90 % banked.
How far over is ninety percent banked?
The operator saved my hide.
How come the operator was able to react and you weren't? Any possibility that you needed BOTH hands to resist the lockout - and a third one to release?
That's my advice to pilots and I'm sticking to it.
A person not equipped to have maximum control of his glider in all circumstances isn't a pilot. He's more of a passenger, gambler, victim type.
I think karen would still be flying with us if there had been an operator during her accident.
There WAS an operator - the driver. And he did exactly what she told him to.
That was my first clue that the system needs more safe gaurds.
Really? My first clue was the first time I hopped on a trainer and realized that I needed two hands to fly it.
losing a friend is a terrible way to learn.
Yes. Especially when:

- things should should've been glaringly obvious beforehand to any halfway intelligent ten year old kid

- all you learned is that you may be able to get away with a release that stinks on ice if you have a babysitter at the front end trying to do your job for you.
Wish you and all safe flying forever.
Figure out what safe flying actually is before you start wishing it on people.
Jim Gaar - 2013/04/03 15:20:20 UTC

No issues with your decision Dave. Around here we give that responsibility to the PIC.
Around there you don't have any pilots.
The manner in which we PL puts the risk 99.9% on the pilot to release.
With equipment that's 2.0 percent effective when the shit hits the fan.
A well trained driver is more then capable of handling line pressure...
A well trained driver wouldn't tolerate assholes who refer to "line pressure".
...and vehicle speed for a safe and successful PL.
How well does a well trained driver handle line "pressure" if there's a dig on the spool and the glider's equipped with the same release as the one on which Bob Buxton slammed in?
Checklists are another risk management tool. We use them as well.
I'll trade your checklist for my button under my finger that blows the bridle off at my hips any day of the week.
There are a number of situations where dumping pressure or cutting the wing loose would not improve the chances of a safe recovery.
Oh REALLY? But you still think the Rooney Link that Zack Marzec was using on the afternoon of 2013/02/02...

http://ozreport.com/forum/viewtopic.php?t=30971
Zach Marzec
Jim Gaar - 2013/02/13 17:57:05 UTC

Because it has the best known and accountable safety record (in my personal books anyway).
...has the best known and accountable safety record (in your personal books anyway)?
Weaklinks and pilots knowledge is the best defense against a lockout or accident.
1. Oh.
Zack C - 2013/02/15 01:53:11 UTC

My only point in posting the video was to demonstrate that weak links cannot prevent attitudes that could be catastrophic near the ground.
Davis Straub - 2013/02/15 02:04:29 UTC

I can't imagine anyone arguing that they would.
2. So in aerotowing having a release that can be blown with both hands on the basetube...

http://www.hanggliding.org/viewtopic.php?t=11497
Aerotow release options?
Jim Gaar - 2009/04/12 03:40:13 UTC

Speaking as a Dealer...

Any release I use, is chosen based on my own definition of what is safe.
YMMV.

The lanyard style AT release that LMFP sells is the only type I've used. I also have a secondary barrel release.

WHY? Because as Nibs wrote, the LMFP lanyard style release allows you to keep your hand(s) on the BT.
...is a significant issue but totally irrelevant in platform. In platform the pilot can just think his way out of a lockout.
It's all about managing that risk factor.
Yeah. 'Cause if you don't manage it to avoid a situation and actually get into one, like Bob Buxton did, with a release that stinks on ice - you are fucked.
We...
Who the fuck is "WE", Rodie?
...like that risk to be on the pilot and not another poor soul that would forever regret a decision they made that did not turn out well.
- Like the poor soul you just designated as a total asshole who could do NOTHING over the course of the rest of his life to make up for the fact that he just did what he was told to and failed to compensate for the guy who misrouted a bridle/release assembly that everyone and his dog knows will become effectively inert in an emergency?

- I got news for ya - asshole...

-- Towing is, by definition, a TEAM EFFORT, people need to know what the fuck they're doing, there's more than one guy flying the glider, and when one of those guys flying the glider is also driving a truck with some fairly complex and critical towing equipment on board it won't hurt to have somebody else involved looking around and assessing things - as long as it isn't some total fucking asshole like Sam Kellner who makes a good decision in the interest of the glider's safety.

-- Speaking of which... How come I didn't hear you - or anyone other mainstreamers - castigating Sam for being on the back of the rig and making a good decision in the interest of Terry Mason's safety and refusing to make public any data whatsoever from the incident? I'd sure rather have Bob Buxton's asshole on the rig not compensating for my fuckups than Terry Mason's asshole dumping me into a vertical whipstall while I've got my hands full fighting for control.

-- When we're doing wire crew launches there are a whole bunch of people on the ramp who can and do make decisions and execute actions which can keep the glider alive or kill it. So should we be following this idiot approach of yours in this environment as well?

- I'm not all that sure that hang gliding people got all that tormented by their performances when they seriously fuck somebody up or kill him.

-- Quest seems to have gotten over dumping Zack Marzec into a whipstall OK.

-- Sam bounced back from killing Terry remarkably quickly and well.

-- Rooney never batted an eye about diving his passenger into the powerlines.

-- Bo never ceased being a total asshole after killing his tandem student at the edge of the Lookout LZ.

-- Steve Wendt never troubled himself to get involved in any discussions about hook-in checks after Bill Priday - whom he signed off without ever even mentioning the issue - ran off the cliff without the glider Steve had sold him.

-- Bobby never uttered so much as a punctuation mark after - because of his release "designs":
--- Mike Haas locked out and died as a result of the lever being mounted at an inaccessible position
--- he pulled Robin into a fatal lockout with a snagged spinnaker shackle gate

Go fuck yourself, Rodie.
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Tad Eareckson
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Re: Releases

Post by Tad Eareckson »

http://www.hanggliding.org/viewtopic.php?t=28759
Karen Schenck? (I think)
Diev Hart - 2013/04/03 16:36:41 UTC
Jim Gaar - 2013/04/03 15:20:20 UTC

Weaklinks and pilots knowledge is the best defense against a lockout...
Weaklinks are not ment to stop a lockout.....they are ment to break under fast hard loads...unlike a lockout that usually builds pressure slower.
Look asshole...

Hang gliding weak links are MEANT to do too many kinds of miraculous things to list in the next day and a half or so. What they ACTUALLY do is break when the tension hits their breaking point.

You can reach the breaking point:
- in a:
-- few milliseconds after forcing a glider off a cart and powerwhacking
-- couple of seconds by using it as a Ryan Voight Instant Hands Free Release
- when you slam in into the runway after five seconds of low level lockout while you wait for it to keep you from getting into too much trouble
- in the first second of tug dolly acceleration
- after:
-- three or four seconds in a lockout at altitude
-- fifteen seconds worth of gradually drifting out of position
-- two seconds of rocketing up in a monster thermal at 150 feet

130 fucking pounds is 130 fucking pounds and if you look at the label on the end of the spool you'll notice that fishing line isn't time sensitive.

So shut the fuck up with all this moronic rot about hard fast loads and PRESSURE slowly building up.
So much to this stuff that needs to be done and explained right....
Try THIS:
Tost Flugzeuggerätebau

Weak links protect your aircraft against overloading.
Fuckin' idiot.
Jim Gaar - 2013/04/03 16:51:00 UTC
Weaklinks are not ment to stop a lockout...
You are correct sir!!
Yes, Mister Blind Former Flight Park Manager, Safety and Launch Marshal, AT Pioneer, Mentor, Test Pilot, On Board With The Current Procedures Rodie... He is CORRECT. They are ment to break under fast hard loads...unlike a lockout that usually builds pressure slower - in total contradiction of what you just stated as FACT.
Another good point worth reminding pilots about.
On behalf of all hang glider pilots everywhere I can't tell you how much we appreciate two total morons coming reaching momentary idiot concensusses and spewing them out for the benefit of us all.
Jerry Furnell - 2013/04/04 10:01:00 UTC

Just finished a tow course with Curt Warren at Forbes over Easter.

Two things drummed into us:

1. Expect the unexpected, especially at the starht and be ready to act.
Does being ready to act include having a release you can blow with both hands on te basetube and a weak link with a low probability of neutralizing your actions? Just kidding.
2. If you're not having fun (ie it's going wrong) then release, release, release.
Yeah, there's just no situation which won't instantly and dramatically improve for anyone stupid enough to listen to crap like this and act on it.
Doing a full pre-flight check every flight was also a top priority.
Yeah, and don't forget to do a test blow of your release while you're on the cart with somebody pulling twenty pounds of tension. You really wanna be sure that you'll be in good shape handling a low level lookout.

Also make sure that you have a fresh loop of 130 pound Greenspot. Don't worry about the facts that after over two decades The Industry has no fucking clue as to:
- its breaking strength
- how it translates to towline tension
- a G rating
- how to configure it in a tow system
- its purpose
- legal requirements
- dangers of using understrength fishing line

Just make sure it's fresh and you'll be just fine.
Curt also does several practice moves of hitting the release - to develop muscle memory.
Probably wanna do some lockout simulations at altitude as well - so the glider develops the muscle memory it needs to stay rightside up while you're moving to hit the release.

One more total fucking moron in hang glider aerotowing. Just what the sport really needs.
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Tad Eareckson
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Re: Releases

Post by Tad Eareckson »

Compare/Contrast...

http://www.youtube.com/watch?v=KQ0T7_WJy3c
http://www.youtube.com/watch?v=KQ0T7_WJy3c
http://www.youtube.com/watch?v=il3YPp3Rfq8
http://www.youtube.com/watch?v=il3YPp3Rfq8

http://www.kitestrings.org/post3338.html#p3338
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Tad Eareckson
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Re: Releases

Post by Tad Eareckson »

Just stumbled across a post from from Bart Doets nearly seven years ago about that brilliant advancement of two stage towing:

http://ozreport.com/forum/viewtopic.php?t=2852
Over/under bridle
Davis Straub - 2006/06/19 13:14:25 UTC

Maybe it was just too much

Phil Brown (PBrown) was wondering if anyone had any feedback on his over/under bridle system. Found here:

http://ozreport.com/overunder.php

He writes:
I began towing using the Koch style two stage release. I had some ideas to make it simpler and safer. Nothing reinforced my ideas more than when I had a near lock out scenario early in my towing experience. I was flying too slow and started sliding to the left. I pulled in and went full to the right. Slowly the glider straightened out and it all turned out okay. I would have released, but I needed both hands to "fly the glider."
Kevenm1 - 2006/06/20 18:29:27 UTC

Too much

At Sacramento Hang Gliding we use the Koch style of release for our scooter towing very successfully. In my short time doing this I haven't witnessed any problems with lockouts, but of course it could happen. I would rely on the scooter operator to let up on the power if he/she determined that a lockout was imminent. Of course this is insufficient, but ...

As for the bridle system, since I haven't seen any other systems except for the Koch one that we use, I couldn't figure it out. I don't see where the upper release is separated from the lower.
Kevenm1 - 2006/06/20 18:47:29 UTC

I see how...

Upon further study I see how the release system works. You are using two separate release points, rather than the combined latching mechanism on the Koch style. My first impression of this is that a newbie (me) might get confused about which release to use first.

I like the thought of a rope brake on the first release, but we need to avoid complications and too much cost. I have never liked the shock of the first release and if a dependable and simple brake can be found I would like it. I don't know anything about rope brakes used in sailing.

I you have time please describe how prone to tangling and catching grass, etc., the release lines are when they fall away.
Bart Doets - 2006/06/20 20:08:02 UTC

To avoid the shockload of the second line going tight, we have a system in Holland that I think is quite unique, although to some trainee pilots it tends to be a problem (well, they should have some experience before launching with the over/under bridle anyway):

We launch with a short piece of rope (called the second line) hanging from the lower release. This second line can be pre-set to any length beforehand, because it is fit with the sort of clasp that our roof-ties are fitted with.. on the loose hanging end is a carabiner.

By the time the line from the upper release gets near your bar, you grab the carabiner and hook it into a ring that is set in the towline about a foot in front of you (passing the second line under the bar of course). Then, you hit the upper release. The shockload from the switchover is neglectable.

This system also avoids any problems that might rise if somebody releases his upper release too early (which would force up your speedbar).

I could post a drawing of the system if anybody's interested; but I would need a place to put the drawing on the web first as I don't have a website.
(I had seen the thread before...

http://www.kitestrings.org/post82.html#p82

...but was focused elsewhere.)

In a sane world that approach would've become universal immediately and a both-hands-on-the-basetube actuation system would've followed shortly thereafter.
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Tad Eareckson
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Re: Releases

Post by Tad Eareckson »

Damn.

The spinnaker shackle version of the two point Lockout Mountain Flight Park is almost as dangerous a piece of junk as the New and Improved version and we have plenty of evidence...

http://vimeo.com/17472603q

password - red
Ralph Sickinger - 2000/08/26 22:18:20 UTC

After towing to altitude, Sunny waved me off; I pulled on the release (hard), but nothing happened! After the second failed attempt to release, I thought about releasing from the secondary, but before I could move my hand the tug stalled and started to fall; Sunny had no choice but to gun the engine in attempt to regain flying speed, but this resulted in a sudden and severe pull on the harness and glider; I was only able to pull on the release again, while simultaneously praying for the weak link to break. The release finally opened, and I was free of the tug.
http://forum.hanggliding.org/download/file.php?id=11565
Image
Image
http://forum.hanggliding.org/download/file.php?id=11566
Members of The Whitewater Hang Gliding Club - 2009/09/04 16:57

Today is a very sad day for WWHGC members. Our good friend and fellow pilot Roy Messing passed away this afternoon as a result of a hang gliding accident this past Monday. Roy had released after entering into a mild lock-out but did not regain control in time to set up for a proper landing.

http://whitewaterhangglidingclub.blogspot.com/2009/09/
WHITEWATER HANG GLIDING CLUB NEWS

Roy's family commented about how much he was enjoying his retirement now that he'd found hang gliding and all his new hang gliding friends at WW. Roy loved to fly and if you fly at WW you surely know that.

We will all miss you Roy, and your kind, helpful presence at the airport. It's your turn to soar in the best lift now buddy! Have a good one!
http://www.hanggliding.org/viewtopic.php?t=25435
Raunchy Day At The Ridge + Release Failure
Terry Ryan - 2012/03/04 03:06:14 UTC
Toronto

My specific problem was that, as I approached lockout, I pulled my release but nothing happened. My release, from Lookout Mountain, has worked flawlessly up to this point. I conclude that under extreme pressure plus friction the darn thing requires a MUCH stronger pull than normal.
...to that effect.

However... This little gem (from the last referenced thread):

4:00
http://www.youtube.com/watch?v=pC1yrdDV4sI

27-41810
http://farm6.staticflickr.com/5579/14820212815_4a9087727f_o.png
Image
29-41812
http://farm6.staticflickr.com/5553/14633551539_018dcd157a_o.png
Image
32-42004
http://farm4.staticflickr.com/3842/14633550919_57af1df255_o.png
Image

...isn't much of a contribution. Just noticed that Outback doesn't have the actuation end of the cable anchored to the downtube - it's just velcroed to a smooth aluminum speedbar and slides inboard on the first couple of efforts.

Great job keeping this guy safe at Currituck - Dennis Wood and Zack Marzec.
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