EntityQ81567· pop 8· linked from 193 articlesLR-87Sign in to saverocket engine used on the first stages of Titan rocketsConnectionsTitanEntitySTAREntityVandenberg Space Force BaseEntityliquid oxygenEntitydinitrogen tetroxideEntity1,1-dimethylhydrazineEntityliquid-propellant rocketEntityhypergolic propellantEntityJ-2EntityHGM-25A Titan IEntityAerojet RocketdyneEntityAJ10EntityRS-27EntityLR-91EntityBell Model 8000EntityUnited StatesCountryNASAConceptInternational Standard Book NumberEntityvacuumEntitypressureEntityCategoriesRocket engines of the United StatesRocket engines using hydrogen propellantRocket engines using hypergolic propellantRocket engines using kerosene propellantRocket engines using the gas-generator cycle