Is it possible with a os 61fx and 13x4 propeller in a worldstar 40? is it to heavy, to powerful?

They list that the plane can use up to a 59 engine, So a 61 should be fine. May have to move the battry to the rear?

Enjoy,

Jim

What do you guys suggest, O.S 50 SX , 61 FX or maybe 91FX[>:] (same weight as 61fx)

Anyone?

The 61 fx is not considered to be powerful enough for its weight anymore.

The 91 fx is a lot of engine, it is no bigger externally than the 61. If you like excitement go this route.

The 50SX would do a good job for you in this plane.

Enjoy,

Jim

the worldstar is okay with a 61fx. the landing gear will be on the soft side but overall shouldn't be a problem.

the 13 x 4 is way too small!!! i would probably use a 12 x 8 or 13 x 6.