Home›Rocket engines›Ullage motor🌐EnglishEnglishEspañolFrançais中文日本語EntityQ7879124· pop 5· linked from 28 articlesUllage motorSmall rocket motor used to settle liquid fuel prior to ignition of a larger rocketAvailable in 4 languagesFrançaisCroatianFinnishvia Wikidata sitelinks · CC0ConnectionsSaturn VEntityweightlessnessEntityCategoriesRocket engines