[3] It was built by TRW and owned by Intelsat, a company currently based in Luxembourg.
It had a hydrazine propulsion system with four propellers and four tanks, and a passive thermal control.
The load consisted of two transponders that used 12 watt TWTA amplifiers for multiple access, 1500 audio circuits or four TV channels.
The Intelsat III F-1 was disabled due to launch vehicle failure.
The satellite was successfully launched into space on May 22, 1969, by means of a Delta M vehicle from Cape Canaveral Air Force Station in Florida, United States.