Quote Originally Posted by Norman Langlois View Post
While every aircraft has individual differences by additional counter measures. Tail size distance from wing etc. Do all pusher aircraft share these adverse effects in the same way ? While one aircraft may be more or less susceptible. Would they suffer from trying to push against the drag force resistance rather than as a tractor aircraft pulling through a drag force. The processions you describe are they enhanced by pushing VS pulling ?

I am struggling to understand what caused my plane to crash . Did I violate a never do this kind of thing as you described. It is possible that what you described coupled with a wind direction was the cause.

I've never thought that the location of the propeller before or behind the center of mass makes any difference in the stability of the aircraft.

The case I'm describing is very extreme. In the Soarmaster/Rogallo system, the thrustline is 2 foot 9 inches above the center of mass -- in a tail-less aircraft this is EXTREME. Then the propeller disk is a full 7 feet behind the center of mass -- and again, in a tail-less aircraft this is EXTREME. And third, the thrust is 60 pounds applied above a total mass of only 270 pounds -- and this ratio of thrust to total mass is EXTREME.

If the prop. disk was 7 feet in front of the center of mass, rather than behind, I can imagine that being even WORSE in it's destabilizing effects.

I'm very reluctant to try to apply any of my observations and lessons to a conventional form of aircraft.