AviationBanter - View Single Post

**Mxsmanic** · June 15th 07, 05:40 AM posted to rec.aviation.piloting,rec.aviation.student

writes:

Hang on, let's keep things simple:

1. If I enter a coordinated turn, I experience an increase in Gs.
2. If I enter a descent, I experience a decrease in Gs.

If I do these two things at the same time, it is possible to enter a
descending turn without any change in Gs.

Yes. Note, however, that you must _accelerate_ downward, and not merely drift
downward at a constant rate.

Just as long as I
continously feed in enough down elevator to offset the increasing Gs
from the turn, the force on the airframe and me, the pilot, will stay
at 1 G.

The additional G from the acceleration towards the center of the turn will be
constant, but the offsetting G from the descent will be constant only if you
continuously accelerate downward.

Of course, all combinations are indeed possible. But this interesting
special case of the situation exists, doesn't it, in which there is no
change in the force felt by the pilot?

Yes. It sounds a lot like a spin.