Releases

General discussion about the sport of hang gliding
User avatar
Tad Eareckson
Posts: 9161
Joined: 2010/11/25 03:48:55 UTC

Re: Releases

Post by Tad Eareckson »

http://www.hanggliding.org/viewtopic.php?t=29771
keel tow point
Mike Bilyk - 2013/08/21 21:00:01 UTC
Crestline

Instead of asking a forum a serious question, I would ask my instructor at the flying field.
Yeah. Instructors at flying fields are all real experts on aerotowing on towing equipment and knots and stuff...

http://ozreport.com/forum/viewtopic.php?t=24534
It's a wrap
Lauren Tjaden - 2011/07/29
Quest Air

I was flying a tandem this morning, and when I released (from the three point bridle) the line briefly released and then wrapped around the 'biner that we tow from. The sharp, strong pull almost immediately broke the weak link on the tug plane, which of course left me with the rope. I released the bridle from my shoulders (with the barrel release) and dropped the rope over the field without incident.

When I retrieved the rope and bridle after the flight, I was shocked at how profoundly the line had wrapped around the 'biner. I have heard about the line being able to wrap, but in thousands of aerotows I have never experienced it. I thought readers might be interested to see actually happens.
ImageImageImage
Secondly, although the weak link wasn't tremendously large, in retrospect in could have been smaller. Apparently the longer the weak link the greater its propensity to wrap. I also included a photo showing the size of the weak link. (I removed it from the 'biner after taking the photos.) Just a reminder for folks to keep their weak links on the stingy side.
Image

Some of these assholes have been perfecting bent pin barrel releases for twenty years.
Please don't hurt/kill yourself listening to a keyboard pilot.
Nah. Please hurt/kill yourself listening to total vegetables like...
Lauren Tjaden - 2011/08/01 02:01:06 UTC

Had the plane's weak link not broken, I would have been left towing from my shoulders, which would have been okay. I could have released from my barrel release on my shoulders or Paul could have given me the rope. Had all else failed, I could have used my hook knife.

For whomever asked about the function of a weak link, it is to release the glider and plane from each other when the tow forces become greater than desirable -- whether that is due to a lockout or a malfunction of equipment or whatever. This can save a glider, a tow pilot, or more often, a hang glider pilot who does not get off of tow when he or she gets too far out of whack.

I rarely break weak links -- in fact, I believe the last one was some two years ago, and I have never broken one on a tandem (probably because I am light and also because I change them whenever they show any signs of wear). They are a good thing to have, though!!
...Lauren Eminently-Qualified-Tandem-Pilot Tjaden.

http://www.hanggliding.org/viewtopic.php?t=28290
Report about fatal accident at Quest Air Hang Gliding
Lauren Tjaden - 2013/02/07 23:56:42 UTC

I am posting the report my husband, Paul Tjaden, just wrote about Zach Marzec's death at Quest. It is a great tragedy to lose someone so young and vital. We are sick about it, and our hearts go out to his friends, family and loved ones.
http://4.bp.blogspot.com/-bRrpHNa68iY/UQ6Pv9gRZyI/AAAAAAAAjTg/Hc22bx5122Q/s2048/20943781_BG1.jpg
Image

And if you ever feel like taking a hop to the International Space Station make sure you only go up on equipment designed, assembled, tested, and preflighted by astronaut instructors.

Total fuckin' douchebag.

P.S.
Michael Bilyk - 89463 - H4 - 2012/01/15 - Rob McKenzie - AT FL ST TFL 360 AWCL CL FSL RLF TUR XC - TAND INST
Figures.
User avatar
Tad Eareckson
Posts: 9161
Joined: 2010/11/25 03:48:55 UTC

Re: Releases

Post by Tad Eareckson »

http://www.hanggliding.org/viewtopic.php?t=29771
keel tow point
Brad Barkley - 2013/08/21 22:51:22 UTC
Frostburg
Mike Bilyk - 2013/08/21 21:00:01 UTC
Crestline

Instead of asking a forum a serious question, I would ask my instructor at the flying field.
Image Image
And...
Brad Barkley - 89857 - H3 - 2013/08/05 - Steve Wendt - AT FL PL ST 360 CL FSL TUR
No surprises here either.

And maybe while you're having your Eminently Qualified flight park pin bender tie the secret knot you need to secure your releases you can get him or her to wipe your asses for you.

P.S. Any of you useless vegetables capable of tying your own Rooney Links?

I doubt this has dawned on any of you useless vegetables yet but...
Mike Bilyk - 2013/08/21 21:00:01 UTC

Please don't hurt/kill yourself listening to a keyboard pilot.
...tons of people have been crashed, badly hurt, killed by losing the tow and it doesn't make the slightest bit of difference if the reason is:
- a towline failing
- a Rooney Link working
- some asshole on a Dragonfly with a dump lever fixing whatever's going on back there
- a Birren Pitch and Lockout Limiter limiting your pitch
- a knot slipping

So if you can use a Fisherman's Knot...

http://www.flickr.com/photos/aerotowrelease/8313955230/
Image

...to keep a Rooney Link from falling apart before it vaporizes to save you from your decision to stay on tow you can tie something that'll keep a two point release in place. (Might have some trouble taking it off afterwards though - which is why I'd recommend a Double Becket or Sheet Bend.)

But then DO make sure you consult with a your instructor at the flying field to show you how to securely velcro your bicycle brake lever to your downtube within easy reach so you won't have any problems in the event of a lockout.
User avatar
Tad Eareckson
Posts: 9161
Joined: 2010/11/25 03:48:55 UTC

Re: Releases

Post by Tad Eareckson »

http://www.hanggliding.org/viewtopic.php?t=29771
keel tow point
Tiberiu Szollosi - 2013/08/21 23:13:27 UTC

just wanted to see some examples of how others tie it on the keel.
Well Tiberiu...

You asked how to secure a release to a keel twenty-one seconds shy of ten hours ago, you've had three responses and 173 hits so far, and no one has been able to give you the slightest hint of a suggestion. Hard to believe these assholes evolved from stuff capable of fashioning the tools necessary to extract termites from their mounds for afternoon snacks.

See what tends to happen when you...

http://www.hanggliding.org/viewtopic.php?t=25302
Interview with Davis Straub, OzReport founder
Jack Axaopoulos - 2012/02/24 15:00:21 UTC

The "Extremist 1%" is not allowed on this site.
...intellectually castrate a population / select for mediocrity and stupidity?
User avatar
Tad Eareckson
Posts: 9161
Joined: 2010/11/25 03:48:55 UTC

Re: Releases

Post by Tad Eareckson »

http://www.hanggliding.org/viewtopic.php?t=29771
keel tow point
Mike Bilyk - 2013/08/21 21:00:01 UTC
Crestline

Instead of asking a forum a serious question, I would ask my instructor at the flying field.
DocSoc...

0:50
http://www.youtube.com/watch?v=JR_4jKLqrus


...at Florida Ridge.

Ben Dunn and Joel Froehlich...

http://2.bp.blogspot.com/-9Ek9_lFeSII/UZ4KuB0MUSI/AAAAAAAAGyU/eWfhGo4QeqY/s1024/GOPR5278.JPG
http://farm4.staticflickr.com/3725/9665623251_612b921d70_o.png
Image
http://2.bp.blogspot.com/-Xh_NfnOcUns/UZ4Lm0HvXnI/AAAAAAAAGyk/0PlgrHfc__M/s1024/GOPR5279.JPG

...at Luling.

Zack Marzec and Mark Frutiger...

http://farm9.staticflickr.com/8394/8696380718_787dbc0005_o.png
Image
Image

...at Quest.

Jim Keen-Intellect Rooney...
The Press - 2006/03/15

The Civil Aviation Authority (CAA) is urgently pushing for new hang-gliding industry standards after learning a hang-gliding pilot who suffered serious injuries in a crash three weeks ago had not clipped himself on to the glider.

Extreme Air tandem gliding pilot James (Jim) Rooney safely clipped his passenger into the glider before departing from the Coronet Peak launch site, near Queenstown, CAA sports and recreation manager Rex Kenny said yesterday.

However, he took off without attaching himself.

In a video, he was seen to hold on to the glider for about fifty meters before hitting power lines.

Rooney and the passenger fell about fifteen meters to the ground.
...of Ridgely, Manquin, Quest, Queenstown, wherever.

When you're dealing with shit as serious as tying a release to a keel you don't wanna be fuckin' around with no muppet keyboard pilot. You could easily get hurt or killed that way. You should only deal with professional pilots who...

http://ozreport.com/forum/viewtopic.php?t=24846
Is this a joke ?
Jim Rooney - 2011/08/25 21:40:25 UTC

Tommy.
First, I sent Steve a bunch of info offline. Hopefully it clears things up a bit for him.
Unfortunately, he's stumbled onto some of Tad's old rantings and got suckered in. So most of this was just the same old story of debunking Tad's lunacy... again .

See, the thing is... "we", the people that work at and run aerotow parks, have a long track record.
This stuff isn't new, and has been slowly refined over decades.
We have done quite literally hundreds of thousands of tows.
We know what we're doing.
...have long track records and tell you they know what they're doing - and tell you that what they're doing is far too complex for you to ever understand.
Steve Davy
Posts: 1338
Joined: 2011/07/18 10:37:38 UTC

Re: Releases

Post by Steve Davy »

User avatar
Tad Eareckson
Posts: 9161
Joined: 2010/11/25 03:48:55 UTC

Re: Releases

Post by Tad Eareckson »

I ADORE knots and have been pretty into them since I was eight but never saw that one until your post. Pretty damn cool.

I was gonna comment that the difference between the Sheet and Becket Bend is that in the latter the you're engaging an eye - or fixed loop or "U" - and for something important I'm gonna use more than about once on a glider I secure the "U" with a bit of stitching to make things bulletproof. But this knot looks like it's bulletproof (and undoable/adjustable) as it is.

I checked my copy of "The Art of Knotting and Splicing" to see if I had somehow managed to miss this bend and found that I hadn't but, in the course, discovered that the way you've been tying the Double Sheet is an acceptable, easier to tie variation. (Not as pretty though.)
Steve Davy
Posts: 1338
Joined: 2011/07/18 10:37:38 UTC

Re: Releases

Post by Steve Davy »

User avatar
Tad Eareckson
Posts: 9161
Joined: 2010/11/25 03:48:55 UTC

Re: Releases

Post by Tad Eareckson »

And...

http://www.treeclimbercoalition.org/phpbb3/viewtopic.php?f=11&t=1129
Simple Simon
moss - 2007/04/25 15:25
Jamaica Plain, Massachusetts

While I was tying Cecil's knot I accidentally tied this, which I really like. More secure than a Sheet Bend, easy to untie after loading. Has a nice symmetrical look.

http://www.flickr.com/photos/naturejournal/4422891882/
Image

Since just about everything's been done a thousand years ago with knots, it probably has a name. If not I'll call it a Moss Bend or Double-Cross Bend (that sounds cooler).
Mike - 2009/02/14 01:25
Trenton, Georgia

Moss, I think what you tied here is called a "vise-versa" bend. I use it in paracord for making a necklace. It seems to be very secure.

http://www.enm.bris.ac.uk/staff/rrc/knots/Reever.pdf
(Trenton, Georgia is the zip code for the Lockout LZ. Small world.)
Steve Davy
Posts: 1338
Joined: 2011/07/18 10:37:38 UTC

Re: Releases

Post by Steve Davy »

I tested the Simple Simon over and the Simple Simon under on some line highly prone to slipping and found the under to be far superior to the over.

Also tested the double sheet bend both ways and found that both are good.
Post Reply