GRAUPNER COMPACT 2257,4V Graupner 7742

GRAUPNER COMPACT 2257,4V Graupner 7742 Ultra-small, high-performance GRAUPNER COMPACT motors for Depron model aircraft. Supplied with two O-rings for propeller mounting.

Nominal voltage: 7.4 V
Operating voltage range: 7.4 ... 11.1 V
No-load speed: 10,360
Revs. / Volt (kV): 1400
Permissible motor direction: R and L
Case length excl. shaft approx. 22.5 mm
Diameter approx. 20.5 mm
Free shaft length approx. 1 mm
Shaft diameter approx. 5 mm
Weight approx. 23 g
LiPo battery, Order No.: 7606.2
Recommended propeller*, Order No.: 2945.20.11
Thrust in N (1 N = 100 g): 1.5
Current drain: 4.2 A
Connector type: none
Recommended speed controller: COMPACT FLY 15
*Not for continuous operation; for intermittent use or part-load running. At high operating voltages a smaller propeller must be used.