🌐EnglishEnglishBahasa IndonesiaEspañolFrançaisPolskiTiếng Việtالعربيةفارسی中文日本語EntityQ640087· pop 11· linked from 280 articlesXB-30Also known as Lockheed XB-30, Lockheed L-249, L-249, L249, XB30proposed heavy bomber aircraftAvailable in 11 languagesEspañolFrançais中文日本語العربيةBahasa IndonesiaCzechPolskiTiếng Việtفارسیvia Wikidata sitelinks · CC0ConnectionsLockheed AH-56 CheyenneEntityLockheed A-12EntityCategoriesAircraft with retractable tricycle landing gearCancelled military aircraft projects of the United StatesFour-engined piston aircraftFour-engined tractor aircraftLockheed aircraftLockheed ConstellationLow-wing aircraftTriple-tail aircraft