FIELD: rocketry and space engineering; injection of payload into orbit.
SUBSTANCE: proposed method consists in forming the command for cut-off of engine plant because of drop of oxidizer pressure after booster pump which is indicative of full consumption of oxidizer and cavitation stall of pressure head created by booster pump (due to inrush of pressurizing gas from oxidizer tank to pump inlet). Tests have demonstrated that cut-off of engine does not cause any trouble.
EFFECT: reduction of guaranteed amount of fuel of rocket final stage; increased mass of payload.
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