K l e i n wrote:
On Nov 18, 2:26 pm, WJRFlyBoy wrote:
On Sun, 18 Nov 2007 13:51:53 +0000 (UTC), Bertie the Bunyip wrote:
WJRFlyBoy wrote in
:
On Sun, 18 Nov 2007 08:12:31 +0000 (UTC), Bertie the Bunyip wrote:
This is the one I mean to post Dudley. Was having some trouble with
Youtube due to a plug-in I think..
http://www.youtube.com/watch?v=Y7eYhlm9FJ8
Can you assess the problem?
What, with my browser or the accident?
lol

The T-6 passed 90 deg (and even earlier) with his nose below the horizon.
He could have rolled back and saved it at that point, but he continued
around in the now awkward position of having to prevent further altitude
loss with excessive neg G which slowed him considerably and further skewed
the airplane's. The exit half was a classic dish. Everybody does 'em
sometimes.... Trick is to recognise a roll that's going to produce one
early enough to abandon it. This guy didn't.
I later saw your post equipment failu

The You tube extension add-on, I have no idea, but it's made a mess out of
my youtube fun!
Bertie
Orbit Downloader
--
Remove numbers for gmail and for God's sake it ain't "gee" either!

What I see is: first half of roll looks fine; but - as he hits the
wings level inverted position, the nose is starting to drop. At this
point of the roll, he should be pushing. But he's starting to pull,
then he pulls some more as he goes through the 3rd quarter of the
roll, causing it to turn 90 degrees and fly into the ground. Only
thing that can make it turn like that is up elevator. Also, I don't
see any top rudder (right) which would have helped hold the nose up.
Basically, the same control movements would produce a 90 degree
rolling turn, inverted to upright, outside roll. I've done lots of
these on purpose and its really hard not to lose altitude. Sadly, he
didn't have any altitude availble to lose.

K l e i n
Just back pressure coming off the backside of the roll wouldn't have
yawed him in like that. Back pressure held in through the second knife
edge would have TURNED him in on his wingtip. He literally yawed himself
sideways coming off the back side and hit flat. I'm guessing he held in
the left (top) rudder and never made the rudder switch through inverted
then let it dish out with the now bottom rudder yawing him off the roll
axis as he came on through knife edge on the way down. Looked to me like
a classic mis-application of controls starting at inverted.


--
Dudley Henriques