How NOT to roll upright
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- Colonel Sanders
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- Posts: 7512
- Joined: Sun Jun 14, 2009 5:17 pm
- Location: Over Macho Grande
Re: How NOT to roll upright
Listen to the video again, sounds like the engine quits just before he attempts to roll level. Not sure what he was flying but could have lost his energy really quick... He did not have altitude to trade, his airspeed was his only energy left!
- Colonel Sanders
- Top Poster

- Posts: 7512
- Joined: Sun Jun 14, 2009 5:17 pm
- Location: Over Macho Grande
Re: How NOT to roll upright
You missed the point entirely. I'm not sure howsounds like the engine quits just before he attempts to roll level
much inverted flying you do at low altitude, but
after an inverted pass, you always push the nose
up, right before rolling upright again. Doesn't
matter if the engine coughs or not - you've got
plenty of airspeed.
In a slippery monoplane with retractable gear?!could have lost his energy really quick
It's so sad when pilots blame the aircraft for pilot
error. That ensures that they don't learn anything
from it, which guarantees that the mistake will be
repeated in the future.
That makes it two accidents and three fatalities in
one week, from people not being able to fly inverted
and roll.
Re: How NOT to roll upright
that's just brutal. Do you think the crash with the wing walker was a stall perhaps?
- Colonel Sanders
- Top Poster

- Posts: 7512
- Joined: Sun Jun 14, 2009 5:17 pm
- Location: Over Macho Grande
Re: How NOT to roll upright
Dayton? Oh, yeah. He rolled (which reducedDo you think the crash with the wing walker was a stall perhaps?
his airspeed) and sagged and had no choice
but to push harder to try to maintain altitude
which increased his (-ve) AOA.
Wingwalker acted as massive spoiler and stalled
wing, which dropped.
Would not have happened if he had another 20
mph airspeed before he rolled.
See many, many, many, many, many posts of
mine (and articles I have written) on the application
of "gates" to low altitude aerobatic maneuvers.
Specifically "top gates" to downward looping
maneuvers, and "entry gates" to determine if
adequate energy exists to perform (commence)
maneuver.
The wingwalker pilot - never met him - needed an
"entry gate" of minimum airspeed and altitude for
that maneuver. If it is not met, maneuver is not
commenced and a wingover is performed to regain
energy.
I know the 450hp stearman reasonably well - I've
done surface acro in it. It's enormously powerful
(at least compared to the stock 220hp W670) and
it's easy to get a little over-confident in all that thrust.


