On Jun 3, 4:55*pm, More_Flaps wrote:
Here's my understanding : If the yoke gives force feedback of the out
of trim condition (you hold attitude and then trim) then if you turn
the trim the wrong while then holding attitude yoke pressure will
increase -as Tina says.

In theory this is right - but in practice you will have to turn it a
long time before the increase is noticeable with certain trim systems.

If it doesn't then you are not holding
attitude OR the stick is not connected directly to the elevator
surface (e.g. elevator is hydraulic or trim surface powered).

There is a third option - this is where the trim surface is not
connected to the elevator - which is indeed the case. The yoke forces
come from the elevator not being 'in trail' with the stabilizer in
such a system. Since the angle of the stabilizer changes very little
as trim is applied, the force on the yoke in a given position also
changes very little. If you move the yoke in the correct direction to
maintain the pitch attitude, the force on the yoke will change as it
should - but this is also the case in a primitive sim since the stick
has a spring return.

I know
the latter is the case for big planes (where elevator forces are too
large for one armed man power) but what light piston single are you
thinking about?

I'm thinking of the short wing Pipers - the most popular of which was
the TriPacer.

Michael