Delta IV Heavy launched

VANDENBERG AIR FORCE BASE, Calif. -- A United Launch Alliance Delta IV Heavy rocket carrying a payload for the National Reconnaissance Office lifted off from Space Launch Complex-6 at 11:03 a.m. PDT today. The Delta IV Heavy configuration Evolved Expendable Launch Vehicle features a center common booster core along with two strap-on common booster cores. The common booster cores are powered by RS-68 engines, and RL10 engines power the second stage. Both engines are built by Aerojet Rocketdyne. ULA constructed the Delta IV Heavy launch vehicle in Decatur, Ala. (Source: United Launch Alliance via PRNewswire, 08/28/13) Gulf Coast note: RS-68 engines are assembled and tested at Stennis Space Center, Miss.