Notional LOx/LH2 rocket engine. Study 1963. Operational date would have been December 1976. Engines for recoverable stage. Used on Nova MM T10RR-2 launch vehicle.
Status: Study 1963. Thrust: 20,015.00 kN (4,499,550 lbf). Specific impulse: 455 s. Burn time: 408 s.