RE: Why the near obsession with over powering airplanes?
If the recommended range is .28 to .45 size two-stroke then I'd go with the .45 because I like to have the reserve power.
I do get a kick out of the guys that would put a .60 or .90 in the same plane.
Trouble is, this plane is a heavy design with a thick airfoil on the wing so all these over-power guys are doing is shorting their flight time.
You can put a .90 in a .40 size plane but your not going to get a .90 size fuel tank in a .40 size fuselage.
Guys do the same thing in reloading. They take a .38 revolver and constantly load and shoot .38 ++P loads.
Why not just get a .357 mag?
You know if your out for speed, a Quarter 40 with a Nelson .40 will beat a Sig 4-Star .40 with a .91FX on it.