1328.25.12,5 Luftschraube Gra Graupner 1328.25.12,

1328.25.12,5 Luftschraube Gra Graupner 1328.25.12, A new series of propellers specially designed for electric power systems. These high-strength glass-reinforced plastic propellers feature exceptionally good torsional rigidity in spite of their ultra-thin, low-drag profile and high aspect ratio blades. For every propeller size there is an exactly matched counterpart for opposite rotation, which means that twin-motor model aircraft can easily be equipped withcontra-rotating propellers. This makes take-off and launch of these models much safer, as the tendency for motor torque to stall the model or tip it onto one wingtip is suppressed. Suitable for many models including the new HEINKEL HE 111, Order No.9594, and B-25 Mitchell, Order No.9373.

Diameter 25/12.5 cm
Pitch 10/5 inches
Hub bore Ø: 8 mm