For years, twin pushers were the dominant form of competition model.    The format was discovered well before the first world war and remained common until the  mid thirties.

The basic formula is a Canard mounted on an A frame .   The legs of the A hold long rubber motors and two pusher propellers that rotate in opposite  directions.   The A frame forms strong triangulated support for the rubber.   The counter rotating props eliminate the torque problems (thrust line modifications were  little understood)  The pusher props supply stability and the canard fits well on the A frame .

All in all a fine solution to the problem of how to make a rubber powered free flight model.  The models have a "rightness" about them, like a good tool.   They are as developed as a broom or a triple expansion marine steam engine.

                                            Why we care

2)      They are quite easy to build and fly.  Some of them are little more than big Baby ROGs with two motors, two props, and two  motor sticks.   I've yet to see one that didn't fly pretty much right off.  Slide the wing back and forth and it is trimmed.

3)      They have a fine history. Thousands of young folks built and flew them at a time when any airplane was an exciting  and exotic device and now they are almost completely forgotten.    They deserve the same kind of attention that tall ships and model Ts get ..and they fly better.

dannysoar@worldnet.att.net