"Motor" is commonly used for rockets too, eg: https://en.wikipedia.org/wiki/Model_rocket_motor_classification#Motor_impulse_by_class https://en.wikipedia.org/w

"Motor" is commonly used for rockets too, eg: https://en.wikipedia.org/wiki/Model_rocket_motor_classification#Motor_impulse_by_class https://en.wikipedia.org/wiki/Model_rocket_motor_classificat...