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<p>a single <a href="page.php?w=AJ10-190">AJ10-190</a> engine, based on the <a href="page.php?w=Apollo_Service_Module">Apollo Service Module</a>'s Service Propulsion System engine, which produces  of thrust with a <a href="page.php?w=specific_impulse">specific impulse</a> (I<sub>sp</sub>) of 316&nbsp;seconds. The oxidizer-to-fuel ratio is 1.65-to-1, The expansion ratio of the nozzle exit to the throat is 55-to-1, and the chamber pressure of the engine is 8.6 bar. The dry weight of each engine is 118kg (260lb). Each engine could be reused for 100</p><p>
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