OVERVIEW
The Graupner 3D RACE COPTER propellers have been designed specifically for the new 3D generation multirotors like the Graupner Alpha 300Q 3D Copter. To achieve 3D flight with a multirotor a specially designed propeller is needed to be able to fly inverted with the same performance as during regular flight. The Graupner 3D RACE COPTER propellers have a fully symmetrical blade design and neutral blade geometry. This guarantees identical performance when rotational direction of the propeller is changed during flight.
FEATURES
- Optimized for multirotor 3D flight
- Symmetrical blade design
- Low weight for better performance
- Made out of glass reinforced polyamide
- Available in different sizes and colors
INCLUDES
- Set of four propellers (2X R/CW and 2X L/CCW)
SAFETY NOTICE!
To avoid possible injuries please take note of the following safety precautions. - Propellers are only suitable for electric motors!
- Modifications to the propeller are not permissible!
- Never stand in the hazard zone in front of or next to one side of the propeller plane!
- Never touch the rotating propeller!
- Never re-use a damaged propeller!
- Never allow the propeller to exceed the stated maximum permissible rotational speed (RPM, see table).
? in inches
| Max. RPM | ? in inches | Max. RPM | ? in inches | Max. RPM |
| 5" | 30700 | 12" | 13300 | 19" | 8300 |
| 6" | 26600 | 13" | 12100 | 20" | 7850 |
| 7" | 22200 | 14" | 11200 | 21" | 7500 |
| 8" | 20000 | 15" | 10500 | 22" | 7170 |
| 9" | 17400 | 16" | 9800 | 23" | 6900 |
| 10" | 16000 | 17" | 9300 | 24" | 6570 |
| 11" | 14300 | 18" | 8700 | 25" | 6300
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