Oliver Arend wrote:

I don't know about Wright flyers or gliders, but "normal" airplanes
(according to my limited experience on Robins and Cessnas) will
actually turn the proper way...
Oliver


The effect in discussion is called adverse yaw. It takes design effort
to get rid of it. The most popular method is called differential
aileron movement: i.e. more UP than down. If I recall, that's the method
used on those two popular planes. But the early planes had a more
serious problem too. When they flew just above stall as they did, the
wings were already at high angle of attack. If you then deflect the
outboard section down, it stalls. Vividly sometimes. Modern practice is
to use a little washout - i.e. lower AofA towards the tips - that makes
the stall progressive.

Brian W