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Titan 3C7

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Titan 3C7 Credit: © Mark Wade

Status: Study 1965. Payload: 15,800 kg (34,800 lb). Thrust: 12,821.00 kN (2,882,275 lbf). Gross mass: 818,380 kg (1,804,210 lb). Height: 43.00 m (141.00 ft). Diameter: 3.05 m (10.00 ft). Apogee: 185 km (114 mi).

LEO Payload: 15,800 kg (34,800 lb) to a 185 km orbit. Payload: 4,300 kg (9,400 lb) to a GTO. Launch Price $: 19.000 million in 1965 dollars.

Stage Data - Titan 3C7

• Stage 0. 2 x Titan UA1207. Gross Mass: 319,330 kg (704,000 lb). Empty Mass: 51,230 kg (112,940 lb). Thrust (vac): 7,116.999 kN (1,599,965 lbf). Isp: 272 sec. Burn time: 120 sec. Isp(sl): 245 sec. Diameter: 3.05 m (10.00 ft). Span: 3.05 m (10.00 ft). Length: 34.14 m (112.00 ft). Propellants: Solid. No Engines: 1. Engine: UA1207. Status: In Production.

• Stage 1. 1 x Titan 3A-1. Gross Mass: 116,573 kg (256,999 lb). Empty Mass: 5,443 kg (11,999 lb). Thrust (vac): 2,339.760 kN (525,999 lbf). Isp: 302 sec. Burn time: 147 sec. Isp(sl): 250 sec. Diameter: 3.05 m (10.00 ft). Span: 3.05 m (10.00 ft). Length: 22.28 m (73.09 ft). Propellants: N2O4/Aerozine-50. No Engines: 2. Engine: LR-87-11. Status: In Production.

• Stage 2. 1 x Titan 3A-2. Gross Mass: 29,188 kg (64,348 lb). Empty Mass: 2,653 kg (5,848 lb). Thrust (vac): 453.714 kN (101,999 lbf). Isp: 316 sec. Burn time: 205 sec. Isp(sl): 145 sec. Diameter: 3.05 m (10.00 ft). Span: 3.05 m (10.00 ft). Length: 7.90 m (25.90 ft). Propellants: N2O4/Aerozine-50. No Engines: 1. Engine: LR-91-11. Status: In Production.

• Stage 3. 1 x Titan Transtage Stretch. Gross Mass: 15,000 kg (33,000 lb). Empty Mass: 2,200 kg (4,800 lb). Thrust (vac): 71.166 kN (15,999 lbf). Isp: 311 sec. Burn time: 520 sec. Diameter: 3.05 m (10.00 ft). Span: 3.05 m (10.00 ft). Length: 5.30 m (17.30 ft). Propellants: N2O4/Aerozine-50. No Engines: 2. Engine: AJ10-138. Status: Study 1965. Comments: 20% stretch of Transtage to handle geosynchronous insertion of larger payloads launched by Titan 3C7. Masses estimated.