Pratt & Whitney To Convert Delta 4 Upper-stage Engines for Atlas 5

摘要

With a large inventory of upper-stage engines for the Delta 4 rocket on hand, propulsion provider Pratt & Whitney Rocketdyne plans to convert some of that hardware for use aboard the Atlas 5 vehicle, company officials said. Canoga Park, Calif.-based Pratt & Whitney Rocketdyne builds different versions of the RL10 upper-stage engine for the Delta 4 and Atlas 5, the workhorse launch vehicles of the U.S. Department of Defense.