It used the motor from DigiQ, having removed.
The weight of a motor is 0.7g.
The 1mm ball bearing is used for the driveshaft.
A gear is 81t and 9t of DiDel.
With the balsa propeller of 127mmx64mm, it is handmade.here is thrust which both exceeds 10g by 140 mAh Li-Poly.
A motor unit is fixed with a magnet.
Wingarea 4.47dm2, Wingspan 473mm, Length 495mm, Wingloading 2.9g/dm2.
Airframe 4.6g + Propulsion-unit 1.7g + prop 0.3g + IR combo receiver 1.5g + Magnet actuator 0.6g + 140mAh Li-Poly 4g + Other 0.2g = Total 12.9g.