Names and dates
| Project start date | 1920 | | Date of prototype completion | 1925 | | Tests start date | 1925-06-05 | | First flight date and time | 1925-09 | | Country of manufacture | Netherlands |
People involved
| Albert von Baumhauer | Design engineer |
Config info
| Rotorcraft type | Helicopter | | Config | Single rotor | | Way of counteracting main rotor torque | Tail rotor |
Weights
| Maximum Takeoff Weight (MTOW) | |
Main rotor
| Cyclic control | Swash-plate (direct) | | Main rotor diameter | | | Main rotor angular speed | | | Number of blades | 2 |
Powerplant
| Engine model (System no.: 1) | BR-2 | | Engine model (System no.: 2) | Thulin | | Engine type | Piston | | Number of engines | 2 | | Total maximum power | |
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