EngineYF-77Drag to turn · Space takes it apart510 kN · 2,600 kg · cold
YF-77 by AALPT: gas generator engine burning LH2 / LOX (active). Thrust 510 kN at sea level, 700 kN in vacuum. 101 bar chamber pressure, 308 s specific impulse at sea level, 430 s in vacuum, 2,600 kg dry. Figures from the database's engine record. Proportions are estimated.