"Matt Whiting" wrote in message
...
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

When you do a roll, the second half of the roll requires changing rudder and
blending stick in elevator and aileron. If you are late on the rudder
change, or late on the elevator blending out from forward elevator to back
elevator, its possible to allow the airplane to change from rolling on its
longitudinal axis to an arc through the back side recovery. Basically what
happens is that you "slide" off the roll axis and widen the roll nose low
through the arc. In effect, you are changing the aircraft's roll axis from a
controlled slow roll to an aileron roll format, which is primarily aileron
and allows the nose to arc naturally during the roll unlike the slow roll
format where the airplane is "flown" through the entire roll from the roll
initiation at the apex of the pull on the airplane's longitudinal axis.
We call this coming in late and allowing this to happen on the back side
"dishing out" of the roll. Allowing this to happen is one of the major
killers, if not THE major killer of pilots doing low altitude roll
maneuvers.
Not allowing dishout on a roll is so critical in low altitude demonstration
work that when I practiced slow rolls for demonstration purposes, I would
set the airplane on the roll apex at it's inverted nose attitude while right
side up after a pull to the set point from a point where the altimeter
needle was covering the 0 on the altimeter, then roll the airplane from the
initiation point returning the needle to recover the 0 again as level flight
was achieved again on recovery. Any deviation from that standard was
considered a blown roll, and the entire practice session would have to be
re-flown.
Dudley Henriques