00:00A process that highlights reusability since no damage occurs.
00:05When we look at Raptor's full flow staged combustion cycle, it becomes clear why it
00:11is superior.
00:11In this cycle, both oxygen and methane turbopumps are fully utilized, which enables higher efficiency
00:18and thrust.
00:19Unlike partial flow staged combustion, like on the BE-4 or the gas generator cycle of
00:26the F1, which weighs propellant to drive the turbines, thereby having a lower specific
00:32impulse.
00:33The Raptor cycle is more complex with dual preburners, which run oxygen-rich and methane-rich
00:39respectively, minimizing corrosion and driving up the pressure.
00:43But nothing is wasted here, because these two rich mixtures are combined in the main chamber
00:49and combusted once again.
00:51And this time, almost completely.
