
The Office of Naval Research-sponsored tactical satellite IV (TacSat-4) lifts-off from the Alaskan Aerospace Corporation's Kodiak Launch Complex aboard a Minotaur IV+ launch vehicle. Built by the Naval Research Laboratory and Johns Hopkins University Applied Physics Laboratory, TacSat-4 will allow troops using existing radios to communicate on-the-move and from obscure regions. U.S. Navy photo by John F. Williams.





