ECO-Antriebsset Graupner 6082 Low-cost electric power system for twin-motor model aircraft such as the STAR JET. Suitable for 7 or 8 NC cells. Weight complete approx. 160 g The set contains: Two SPEED 400 7.2 V electric motors, two 12.5 mm Ø plastic spinners, two 12.5 x 11 cm propellers, 800 mm power cables, two suppressor capacitors, operating instructions in German, English and French.