| 摘要 |
A propulsion toy consists of an enlarged disc member, a launching device to which the disc member is attached and a launchable rotor member. The rotor member is disposed forwardly of the disc and releasably engaged with the launching device. When the launching device is operated, the rotor member is set into rapid rotation and the blades thereof react against the foward surface of the disc to thus disengage the rotor member and to permit the same to be propelled forwardly.
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