Non-fatal crash in Tres Pinos, CA
...asshole...Erik Boehm - 2013/11/19 09:59:39 UTCThere's not much one can do to fix it, aside from throw a chute. You found a video of my...Lin Lyons - 2013/11/18 18:30:29 UTC
Once the tumble starts, it appears that it's not fixable.
Yeah, eventually the ground will stabilize things....brother's tumble... you should be able to see that the G forces from the rotation became quite extreme.
However... assuming the glider doesn't break, given enough altitude, I think they usually resolve themselves.
High.A glider like the Sensor - a low...
Bullshit. Designs are proven in the certification process. There's nothing that you can learn by putting hundreds of them up for a decade or two that you shouldn't have known before the first one shipped....nose angle, not much washout, high aspect ratio, will tumble much more readily than a Falcon - or a Mark IV for that matter. I doubt the glider design was the problem, the Mark IV has a very solid reputation, and is very stable. It's an old and proven design.
So how come Mission hasn't reported anything along these lines?It could have been mistreated/misassembled, I suppose (battens were not the correct shape, bent washout tubes, etc).
Bullshit.Look at that whipstall video you posted... that glider didn't tumble, yet the Sensor did from a much less aggressive whipstall. I think you'd have to try very hard to get a Falcon to tumble, and even then, you'd probably only get one or two out of it before aerodynamic overcomes inertia. (Note that the video with the trike... all that added weight far from the CG in the form of the engine, meant there was a lot of rotational inertia.)
- Everything's suspended from the hang point and that's all the glider knows or cares about.
- How 'bout all that extra weight that a tandem glider carries? Are they more prone to tumbles than solos?
UN...We're four pages in to bickering over this, and it sounds basically like the guy's AoA was simply too high when the line released.
http://www.chgpa.org/forums/viewtopic.php?f=2&t=2467
weak links
...DOUBTEDLY.Jim Rooney - 2007/08/01
Whatever's going on back there, I can fix it by giving you the rope.
It's more of this crappy argument that being on tow is somehow safer than being off tow.
- Yeah, it IS out of line.Although, I suppose a debate on whether towing is really safe for beginners, given the high angle of attacks on release, is not out of line.
-- This guy was NOT a beginner. He was a high flyer with thirty percent of the airtime requirement for his Three.
-- No kind of flying is really safe for beginners. That - in theory anyway - is why we have instructors controlling things in the early stages.
-- If you really wanna start eliminating things that aren't safe for beginners - or anyone else - get rid of foot landings, foot launches, and flying upright.
-- The angle of attack on release - barring a lockout situation (which is pretty much one hundred percent doable in training situations - can be anything anyone wants it to be. Pilots are capable of pulling in and drivers are capable of easing tension.
- So what you're saying is that it's not the towing that's dangerous - it's COMING OFF tow, right? So any comments on:
-- Hewett Links
-- Birrenators
-- Dennis Excellent-Book Pagen
-- Bobby Fucking-Genius Bailey
-- Davis Just-An-Inconvenience-Now-And-Then Straub
-- Jim Keen-Intellect Rooney
-- Mitch You're-Stalled Shipley
-- The Great Zack Marzec Mystery
I don't recall you being real vocal in a lot of previous discussions.
Happy New Year 
we are doing something right.
Come on now I've been involved with horses for 45 years and I never saw anything that was any worse then with skiers. Close but no banana...
