| 释义 |
Definition of ullage rocket in English: ullage rocketnoun An auxiliary rocket engine used in weightless conditions to provide sufficient acceleration to maintain the flow of liquid propellant from the tank. Example sentencesExamples - I also took the opportunity to mould the ullage rocket units, of which four appear on Apollo 11.
- 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.
- Eight ullage rocket motors located around the bottom of the second stage then fire for approximately 4 seconds to give positive acceleration to the stage prior to ignition of the five J - 2 engines.
- The flight was aborted by premature ignition of ullage rockets on Agena, after which President Eisenhower conferred with Richard M. Bissell personally.
- 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: ullage rocketnoun An auxiliary rocket engine used in weightless conditions to provide sufficient acceleration to maintain the flow of liquid propellant from the fuel tank. Example sentencesExamples - The flight was aborted by premature ignition of ullage rockets on Agena, after which President Eisenhower conferred with Richard M. Bissell personally.
- This kit includes four integrally molded ullage rockets for Apollos 8 through 14, but they are positioned incorrectly.
- Eight ullage rocket motors located around the bottom of the second stage then fire for approximately 4 seconds to give positive acceleration to the stage prior to ignition of the five J - 2 engines.
- There are two jettisonable ullage rockets for propellant settling before engine ignition.
- At T + 60: 50 min one of 4 solid ullage rockets in 4th stage did not fire causing the stage to tumble.
- I also took the opportunity to mould the ullage rocket units, of which four appear on Apollo 11.
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