Beskrivning : TACSAT 1 (also TACOMSAT, Tactical Communications satellite) was the largest and most powerful communications satellite at the time when it was launched into synchronous orbit by a Titan-3C booster 9 February 1969, from Cape Canaveral, Florida.
Two stories high and more than 2.8 meters in diameter, the huge satellite was used by the U.S. Army, Navy, and Air Force to test the feasibility of using synchronous satellites for tactical communications with mobile military field units, aircraft, and ships. TACSAT was taken out of service 16 December 1972, after demonstrating the advantages of this type of satellite communications system.