From the model airplane world here is a product that controls both
pitch and roll.

http://www.futaba-rc.com/radioaccys/futm0999.html

It operates by optically referencing the horizon. So your day VFR
application would be a coincident limitation.

I don't know how current autopilots mechanically couple to the flight
controls but there are very large hobby servos that could probaby be
powerful enough to nudge the controls back and forth in response the
the control unit.

You could either just use their sensor and build your own controller or
attempt to use their controller.

BTW- The vibrating piezo gyros used for RC helecopters have some slow
drift so you can't use them directly but they do have a lot of promise
still for a stabization system. In the hobby application they act more
as dampers than absolute references as the horizon would be for the
earlier mentioned method. So the hobby gyro could counteract bumps but
the steady state error would have to be maintaned by the pilot.

Regards

Dick wrote:
Sitting around the hanger and discussing the possibility of somehow
using
off-the-shelf electronic/computer components or gadgits for
semi-automatic
wing leveling on lightly loaded, short wingspans.

Not being computer guys, the current thought is that something should
be out
there that is available cheaply and modifiable to use a simple wing
leveler.

Having heard someplace that automotive computers, as an example,
sense data
millions of times leads us to believe that sensing the wing tip
initial
movement and counteracting very very quickly would be a good thing.

As an example: One fellow pictured a rolling ball bearing inside a
tube
somehow activating a magnetic switch which in turn pulses a dc linear
motor
to operate the aileron minutely.

We are not sure how to detect the very earliest initial wing tip
movement or
drive the small trim type motor and would appreciate some thoughts
or site
recommendations to investigate.

Thanks, Dick