Sorry for the delay in getting back to you. ABSOULTLY the 4130! the 20 will `not be enough. I am putting one on my current project which is lighter and not an aerobatic plane and I think it will keep it in the air, but not much mroe than that. Concider a geared MEGA setup. Similar price and better performance. Those new Himaxx look tempting too. Ahhh so many options...so little time...

Kirby