Geschichte
Innovation – A new, improved version of the Wankel engine from Graupner

The Graupner Wankel engine, System NSU, is manufactured by the Japanese engine company O.S. Detailed test reports on the predecessor to this model were published in MFS years ago.
Technical Specifications
| Chamber volume | 4.9 cm³ |
| Recirculating direct intake, speed | 3,000 ... 18,000 rpm |
| Power | 0.59 kW (0.8 PS) at 17,000 rpm |
| Part No. | 1801 with glow plug and mounting ring |
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