释义 |
vernier rocket
vernier rocketn. A small rocket engine used primarily on spacecraft to make fine adjustments in velocity or attitude.vernier rocket n (Astronautics) another name for thruster2 Vernier Rocket
vernier rocket[′vər·nē·ər ′räk·ət] (aerospace engineering) vernier engine Vernier Rocket a rocket engine for controlling the flight of a rocket according to a prescribed program. A rocket is usually provided with two or more such engines, which are of low power. A lateral moment is created by turning a vernier rocket installation. When the vernier rockets are mounted in a fixed position, a lateral moment is obtained by producing unequal thrusts, that is, a thrust differential, in the rockets. ThesaurusSeethruster |