12mm N-20 sized motor with 5:1 gearing. Motor is wound for 4.5V operation (4 NiCd/NiMH or a single Li-Poly cell). 2mm diameter carbon fiber shaft supported by two ball-bearings. Gearbox housing made from milled fiberglass sheet. Use GWS AD001
push-on rubber prop adapters to fit GWS 5" propellers. Weight: 7.7g with motor.