barrel roll in 172
Dudley Henriques wrote:
"Matt Whiting" wrote in message
...
john smith wrote:
In article ,
Matt Whiting wrote:
Dudley Henriques wrote:
Scotty McCray flew a Schweizer 2-22 EK for his demonstrations. We
appeared at the same shows many many times and I knew him quite well.
The 2-22 wasn't exactly the "cleanest" glider in the world by today's
standards. Scotty was an absolute master at energy control. His
technique for energy management was in my opinion the best I've ever
seen done in an unpowered aircraft. I think I watched Scotty perform
hundreds of barrel rolls in the 2-22 and never once did I see him dish
it out of a roll.
Strangely enough, it was the addition of horsepower to his aerobatics
that killed him down in Brazil in 73, when the Decathlon he dished out
of a low altitude roll.
One of the nicest and finest guys I knew in aviation.
Dudley Henriques
What does "dished out" mean?
Matt, this and your previous post show you do not have a broad knowledge
of the world of aerobatics. Please do not dispute those that do.
Your condescending tone is most inappropriate.
I've never claimed broad knowledge of aerobatics. I do have a pretty good
grasp of physics though and the comment about the barrel roll violates
physics (as well as published descriptions of the forces incurred in
executing a barrel roll).
Matt
Don't mean to rankle anybody here, and I haven't seen any "condescending
tone" as yet, but how does any comment made by me about barrel rolls violate
the laws of physics?
I don't think I understood all of your descriptions of the variations of
a barrel roll well enough to make an assessment. Some of them didn't
sound like the traditional barrel roll description. For example, do you
end up at the starting altitude in all of the cases you discussed
related to fighter evasive techniques? If you lose a lot of altitude
during the roll, then I can see being able to hold less than 1g through
most of the maneuver. I don't see how this is possible for any roll
that could be superimposed on a cylinder (the barrel) with the ending
point being at the same radial location as the starting point - that is
if you start at the bottom of the barrel you end at the bottom of the
barrel. I couldn't visualize all of your permutations on the roll to
know if this was the case or not.
Matt
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