Definition of ullage rocket in English:
An auxiliary rocket engine used in weightless conditions to provide sufficient acceleration to maintain the flow of liquid propellant from the tank.
- At T + 60: 50 min one of 4 solid ullage rockets in 4th stage did not fire causing the stage to tumble.
- There are two jettisonable ullage rockets for propellant settling before engine ignition.
- This kit includes four integrally molded ullage rockets for Apollos 8 through 14, but they are positioned incorrectly.
Definition of ullage rocket in:
- US English dictionary
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