| 1. | At the tip of each blade is a tiny, one-pound rocket motor.
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| 2. | Castable composite solid rocket motors were invented by jet-assisted take off applications.
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| 3. | A rocket motor with a thrust of 280 kgf ) was chosen.
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| 4. | Existing rocket motors use a large bell-shaped housing to perform that function.
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| 5. | The retarder is dropped, the rocket motor fires, and is optically guided.
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| 6. | In a standard hybrid rocket motor, the solid material is the fuel.
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| 7. | The rocket motors have a combined burn time of around 45 seconds.
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| 8. | In the 13th century, the solid rocket motor was invented in China.
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| 9. | This cooling design became the basis of all modern liquid-propellant rocket motors.
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| 10. | This effect was improved by a rocket motor that sped the munition up.
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