| 1. | The principal engineer for turbopump development at Aerojet was George Bosco.
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| 2. | Propellants are fed via a single shaft, dual impeller turbopump.
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| 3. | The only significant moving part in the engine is the turbopump.
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| 4. | The turbopump is considered safer and stronger because it has no welds.
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| 5. | Unusually, the turbopump for the engine was mechanically driven from outside.
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| 6. | A second valve, after a delay, engaged the turbopump clutch.
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| 7. | The pneumatic system is nowadays often replaced by a computer-controlled turbopump.
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| 8. | When this happened, the turbopump would shut down, terminating engine thrust.
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| 9. | The oxygen is also fed to the combustion unit, using a turbopump.
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| 10. | Loose debris had gotten sucked into a turbopump, resulting in engine failure.
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