Graupner CAM folding propellers are a name to recon with in the sailplane community. All CAM propellers are precisely engineered and optimized to provide the highest efficiency across the widest range of flight envelope. The Computer Aided Manufacturing ensures tight tolerances during the production process using carbon reinforced materials to ensure optimal stiffness and minimal distortion.
- High efficiency over a wide range of operation.
- CAM blades are digitally calculated for optimize aerodynamics
- Computer Aided Manufacturing (CAM) guarantees tight tolerances
- Blade root: 8 mm
- Rotating direction: Right
- Diameter / bore : 3.1 mm
- Pair of CAM Folding Props
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 |
installed on a Electron F5J. used with a Hacker a20-22l outrunner. very happy with the performance.
Reviewed by: (Verified Buyer) Daniel W. Fink from Amazon on 5/12/2015
This is a good product at a good price and fast shipping. What more could I ask.
Reviewed by: (Verified Buyer) Don King from Amazon on 2/20/2015
These are good props and work well on my 100 inch sailplane.
Reviewed by: (Verified Buyer) Clifford D. Whitney from Amazon on 7/17/2015
Excellent upgrade for my Radian.
I used this on my Radian glider to replace the stock propeller. I also changed out the spinner assembly at the same time with an Aluminum one. My Radian has taken on a whole new personality with fantastic performance. Excellent product.
Reviewed by: (Verified Buyer) Marc from Amazon on 1/13/2015