Here's what I have on the Tower Hobbie's site:
REQUIRES: Engine: .46-.51 cu in (7.5-8.3 cc) 2-stroke
OR .52 cu in (8.5 cc) 4-stroke
Muffler: Sports-style supplied with engine
Specs:
Wingspan: 66" (1675mm)
Wing Area: 701 sq in (45 sq dm)
Weight: 7lb (3180g) approximate
Wing Loading: 23 oz/sq ft (71 g/sq dm)
Fuselage Length: 50" (1270mm)
And here's what I have on mine:
Wingspan: 64"
Wing Area: 625 sq in
Fuselage length: 44 1/2"
Weight: 6lb approximate
Engine: .40 to .50 two-stroke
.48 to .70 four-stroke
Wing Loading: 22.11 oz/sq ft
I can just about set mine up on a hi-start and catch thermals, if that's to my liking. But it is a piston powered plane, afterall. Engine choice depends on what the owner wants to do. Fly on the prop like a Venus II, or fly on the wing like a Piper Cub. Although I would prefer the Cub, others would rather have bigger control surfaces and increased throws so they can 3D hover. And then there are some who like the challenge of a war bird's added weight and speed. It's all good. Mind you, the .61 K&B engine is going to make it a little heavier, and that will also increase the stall speed. You will want to adjust your flying technique accordingly.
NorfolkSouthern