another crash

He felt that any headrest limits the movement of the head for lookout, particularly to the rear, not a matter of blocking the view as mush as limiting head movement.
He is possibly the most experienced instrauctor in the world, with 30,000 hours as a professional paid instructor, and winner of multiple world champs..
It’s been a pleasure flying with a real professional.

In news, some no life low life has reported me to the airworthiness authorities for removing the headrest.
It’s interesting, if a tall pilot removes the seat back with an integrated headrest to fit in the glider, that must be illegal too.
I’m waiting a response from the authority as to whether removing the head rest is allowable ot not.
I can find no reference to it in the manuals, and it’s certainly not required equipment as per the risk.
I wonder if my accuser has the guts to admit it here, or will just crawl back under their rock. Perhaps they can show their source for the claim of illegality?
I’m not holding my breath, this kind of petty pedant is a sad fact of live In the parochial backwater in which I live.
I’m pretty sure I know who it is, and the laughable thing is I know damn well if I was one of his mates, doing an illegal mod, he would have said nothing.

On Friday, September 6, 2019 at 8:36:15 PM UTC-7, Charlie Quebec wrote:
In news, some no life low life has reported me to the airworthiness authorities for removing the headrest.
It’s interesting, if a tall pilot removes the seat back with an integrated headrest to fit in the glider, that must be illegal too.
I’m waiting a response from the authority as to whether removing the head rest is allowable ot not.
I can find no reference to it in the manuals, and it’s certainly not required equipment as per the risk.
I wonder if my accuser has the guts to admit it here, or will just crawl back under their rock. Perhaps they can show their source for the claim of illegality?
I’m not holding my breath, this kind of petty pedant is a sad fact of live In the parochial backwater in which I live.
I’m pretty sure I know who it is, and the laughable thing is I know damn well if I was one of his mates, doing an illegal mod, he would have said nothing.

Hey CQ, WHERE is your SO-CALLED VIDEO?

THIS IS AS CLOSE AS I can find, the more revealing video, it appears it has been taken down, clearly showing the aerobatic glider striking the ground at a 60 degree angle.
This video only shows the crash up until ground contact even you 2G should be able to work out what happened next.

https://m.youtube.com/watch?v=zxbulrrQVig
This link shows screen captures from the video showing every stage of the crash.
https://www.dailymail.co.uk/news/art...es-runway.html
Stick that where the sun don’t shine.

On Saturday, September 7, 2019 at 12:50:44 AM UTC-7, Charlie Quebec wrote:
THIS IS AS CLOSE AS I can find, the more revealing video, it appears it has been taken down, clearly showing the aerobatic glider striking the ground at a 60 degree angle.
This video only shows the crash up until ground contact even you 2G should be able to work out what happened next.

https://m.youtube.com/watch?v=zxbulrrQVig
This link shows screen captures from the video showing every stage of the crash.
https://www.dailymail.co.uk/news/art...es-runway.html
Stick that where the sun don’t shine.

I beg to differ: this video (which I have seen before) does not show the impact at all, which is blocked by the crowd. It is apparent that the wing tip strikes first, then the fuselage. This is not a "frontal impact," but a cart-wheel, which is survivable as the wing is taking most of the energy. A friend of mine survived such an impact in the Alvord Desert with basically no injuries.

The physics are pretty simply: gliders don't have a crush zone - your feet and legs are the crush zone. A vertical impact is not survivable, but a shallow angled crash can be. Here is an example of the former:
https://app.ntsb.gov/pdfgenerator/Re...Final&IType=FA
https://dms.ntsb.gov/public/61500-61...854/620585.pdf
and here is an example of the later:
https://app.ntsb.gov/pdfgenerator/Re...Final&IType=CA
https://www.danlj.org/~danlj/Soaring...hrop-12-17.pdf
Both of these pilots were friends of mine (Bill Gawthrop succumbed to cancer last year).

Tom

Then you have reading comprehension of vision problems, the photos show a small impact on the wing and clearly from the damage, the bulk of the force was on the nose, you can tell clearly from the pictures where the main forces were.
The whole sequence is there. By all means though, keep up your amusing attempt to deflect.

Had you bothered to click the link to the picture, the second one down shows clearly the glider was in a 65 degree nose down attitude when it hit.
The small damage to the wingtip and large damage to the nose show clearly where the force are. the sequencevof photos is quite clear.
I have personally seen the wreckage of a twin astir that struck nose first and both pilots survived, albeit one of them with a serious injury.
Here’s the link again to the pictures.
https://www.dailymail.co.uk/news/art...es-runway.html

On Saturday, September 7, 2019 at 10:52:20 AM UTC-7, Charlie Quebec wrote:
Had you bothered to click the link to the picture, the second one down shows clearly the glider was in a 65 degree nose down attitude when it hit.
The small damage to the wingtip and large damage to the nose show clearly where the force are. the sequencevof photos is quite clear.
I have personally seen the wreckage of a twin astir that struck nose first and both pilots survived, albeit one of them with a serious injury.
Here’s the link again to the pictures.
https://www.dailymail.co.uk/news/art...es-runway.html

You CLAIMED that the video showed a vertical impact, which it didn't. This picture DOESN'T show the impact either, but it looks very much like the wing tip hit first, causing a cartwheel - which is what I said before. A cartwheel is a VERY MUCH different type of impact from a frontal impact. I illustrated this with TWO SEPARATE ACCIDENTS. Go back and EDUCATE yourself!

Tom

Check the type certificate data sheet for your glider and the equipment
list.Â* The TCDS for my Stemme said words something like, "Everything in
the equipment list PLUS a canopy breaker tool".

There was no canopy breaker tool in my 12-year old ship when I imported
it into the US and the Designated Airworthiness Representative issued an
Airworthiness Certificate for the ship, anyway.

As soon as I noticed the requirement, I installed a canopy breaker in
the cockpit.Â* Perhaps you'll find similar wording about the headrest or
lack of same.Â* With no stated requirement, I'd argue with the
authorities.Â* Probably a losing battle, but one worth fighting.

On 9/6/2019 9:36 PM, Charlie Quebec wrote:
In news, some no life low life has reported me to the airworthiness authorities for removing the headrest.
It’s interesting, if a tall pilot removes the seat back with an integrated headrest to fit in the glider, that must be illegal too.
I’m waiting a response from the authority as to whether removing the head rest is allowable ot not.
I can find no reference to it in the manuals, and it’s certainly not required equipment as per the risk.
I wonder if my accuser has the guts to admit it here, or will just crawl back under their rock. Perhaps they can show their source for the claim of illegality?
I’m not holding my breath, this kind of petty pedant is a sad fact of live In the parochial backwater in which I live.
I’m pretty sure I know who it is, and the laughable thing is I know damn well if I was one of his mates, doing an illegal mod, he would have said nothing.

--
Dan, 5J

Dan Marotta wrote on 9/7/2019 7:06 AM:
As soon as I noticed the requirement, I installed a canopy breaker in the
cockpit.* Perhaps you'll find similar wording about the headrest or lack of same.
With no stated requirement, I'd argue with the authorities.* Probably a losing
battle, but one worth fighting.

What does a canopy breaker look like? I've never heard of one.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1
- "Transponders in Sailplanes - Dec 2014a" also ADS-B, PCAS, Flarm

http://soaringsafety.org/prevention/...anes-2014A.pdf