| CPC B64D 27/33 (2024.01) [B64D 27/023 (2013.01); B64D 27/026 (2024.01); B64F 1/04 (2013.01)] | 20 Claims |

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1. A propulsion system comprising:
a rocket motor; and
an electric motor around the rocket motor, the electric motor being annular and the rocket motor passing through a central opening defined by the electric motor.
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