I suppose if the VW is lighter and more powerful than the model A
engine, you could always mount it in the same place put lead weights(a
car battery?) up front.

I'd vote for the longer nose/lighter plane though, you can always
enlarge the rudder. Also as far as strait line stability, the
fuselage area in front of the CG may be offset to some degree by the
gyroscopic effect of the spinning mass being further from the CG.

Regards
--------------------------------------------------------
I fly a VW.
But it won't swing enough prop to fly an Air Camper.


The Piet Air Camper was designed around the Ford engine.
The plane needs that mass of metal up front to balance properly.

With a lighter, a longer mount is needed to keep the plane in balance.
Longer noses usually mean less yaw stability.

A Contenental A-65 - A-85 seems to work out ok.
At least you see them flying now and then.


Richard