ORIGINAL: ServoShack
If I get the 4*40 kit can I finish the build before getting the engine? or do I have to have the engine to comeplete the plane?
You can build the wing, but you need the engine to for drilling the fire wall for the mount to bolt to. You assemble the firewall in the first step of the fuselage build.
I agree with Bruce the OS46 ax is a good engine for ease of use and power.