Couldn't happen that way. If he rolled in the nose up trim BEFORE he rolled
into the turn using rudder it would have pitched up immediately. But if he
rolled in the nose up trim WHILE the aircraft was entering its bank and
coordinated it perfectly he could do it. But I doubt anyone's perfect and
the whole thing sounds suspect. And no, it's not proper turn entry. But
as a demonstration of trim rather than up elevator to increase back pressure
in a steep turn that is interesting. Using rudder to enter the bank is a
good demonstration, also. Steep turns in most aircraft, however, are
performed not changing elevator/stabilizer trim from the level flight
setting. And rolls into bank are coordinated using aileron/spoiler with
appropriate rudder.
--

B-58 Hustler History: http://members.cox.net/dschmidt1/
-

"Roger Long" wrote in message
...
A friend of mine's IFR instructor showed him something I've never heard
of.
He rolled in 2 - 3 turns of nose up trim on our 172, pushed on a rudder
pedal, and went into a nice level steep turn without touching the yoke.
I'm
not sure if this is practice for proper turn entry or a way of entering an
emergency turn partial panel without the danger of over banking.

Can anyone shed further light on this maneuver?

--
Roger Long