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USA rocketry school tradition of counting engines by chambers makes R-7 a rocket which uses 32 engines at liftoff 4 main chambers for each of 4 RD-107 and 1 RD-
by avmich 8y ago
USA rocketry school tradition of counting engines by chambers makes R-7 a rocket which uses 32 engines at liftoff 4 main chambers for each of 4 RD-107 and 1 RD-108 (20 chambers) and 12 steering chambers (each with about 3 tons of thrust, about as much as a chamber of British Gamma-8 engine) - more than N-1. Yet R-7 is a pretty reliable rocket overall. Also Falcon Heavy has 27 engines, which not too many complain about.
No, engines didn't need to operate perfectly. N-1 has less gross liftoff mass (GLOM) than Saturn-5, yet N-1 had higher liftoff trust. That's partially because it was supposed to complete the mission with up to 4 engines out during flight.