 Launch of a Titan IIIC | |
| Function | Medium-lift launch vehicle |
|---|---|
| Manufacturer | Martin |
| Country of origin | United States |
| Size | |
| Height | 137 ft (42 m) |
| Diameter | 10 ft (3.0 m) |
| Mass | 1,380,510 lb (626,190 kg) |
| Stages | 2-3 |
| Capacity | |
| Payload to LEO | |
| Mass | 28,900 lb (13,100 kg) |
| Payload to GTO | |
| Mass | 6,600 lb (3,000 kg) |
| Payload to Mars | |
| Mass | 2,650 lb (1,200 kg) |
| Associated rockets | |
| Family | Titan |
| Launch history | |
| Status | Retired |
| Launch sites | LC-40 & 41, CCAFS SLC-6, Vandenberg AFB |
| Total launches | 36 |
| Success(es) | 31 |
| Failure(s) | 5 |
| First flight | 18 June 1965 |
| Last flight | 6 March 1982 |
| Boosters (Stage 0) – UA1205 | |
| No. boosters | 2 |
| Maximum thrust | 1,315,000 lbf (5,850 kN) |
| Specific impulse | 263 secs |
| Burn time | 115 seconds |
| Propellant | Solid |
| First stage | |
| Powered by | 2 LR87-AJ9 |
| Maximum thrust | 1,941.7 kN (436,500 lbf) |
| Burn time | 147 seconds |
| Propellant | N2O4 / Aerozine 50 |
| Second stage | |
| Powered by | 1 LR91-AJ9 |
| Maximum thrust | 453.1 kN (101,900 lbf) |
| Burn time | 205 seconds |
| Propellant | N2O4 / Aerozine 50 |
| Upper stage – Transtage | |
| Powered by | 2 AJ-10-138 |
| Maximum thrust | 16,000 lbf (71 kN) |
| Burn time | 440 seconds |
| Propellant | N2O4 / Aerozine 50 |
The Titan IIIC was an expendable launch system used by the United States Air Force from 1965 until 1982. It was the first Titan booster to feature large solid rocket motors and was planned to be used as a launcher for the Dyna-Soar, though the spaceplane was cancelled before it could fly. The majority of the launcher's payloads were DoD satellites, for military communications and early warning, though one flight (ATS-6) was performed by NASA. The Titan IIIC was launched exclusively from Cape Canaveral while its sibling, the Titan IIID, was launched only from Vandenberg AFB.