The staged combustion cycle is a power cycle of a bipropellant rocket engine. In the staged combustion cycle, propellant flows through multiple combustion chambers, and is thus combusted in stages. Th
Oxidizer-rich turbine exhaust from a SpaceX Raptor preburner shown during a 2015 sub-system test on a test stand at Stennis Space Center. In the full-flow rocket engine, the preburner exhaust is fed into a turbine and then into the main combustion chamber.
The N1 was a super heavy-lift launch vehicle of the Soviet space program intended for crewed travel to the Moon and beyond. All four launch attempts between 1969 and 1972 failed. Studied and designed
Mockup at the Baikonur Cosmodrome in late 1967
N1 imaged by US KH-8 Gambit reconnaissance satellite, 19 September 1968
Scheme of the rocket stages (in Russian)
A comparison of the US Saturn V rocket (left) with the Soviet N1/L3. Note: human at bottom illustrates scale