The RD-701 (Russian: Раке́тный дви́гатель 701, Rocket Engine 701) was a liquid-fuel rocket engine proposed by Energomash, Russia (USSR at that time). It was briefly proposed to propel the reusable MAKS space plane, but the project was cancelled shortly before the end of USSR. The RD-701 would have been a tripropellant engine that used a staged combustion cycle with afterburning of oxidizer-rich hot turbine gas.
The RD-701 (Russian: Раке́тный дви́гатель 701, Rocket Engine 701) was a liquid-fuel rocket engine proposed by Energomash, Russia (USSR at that time). It was briefly proposed to propel the reusable MAKS space plane, but the project was cancelled shortly before the end of USSR. The RD-701 would have been a tripropellant engine that used a staged combustion cycle with afterburning of oxidizer-rich hot turbine gas.
Source: Wikipedia "RD-701" · CC BY-SA 4.0
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