Encyclopedia Astronautica
Titan 5


American orbital launch vehicle. Proposed Titan upgrade with cryogenic core as replacement for NLS.

Flyaway Unit Cost $: 48.720 million in 1985 dollars.

Stage Data - Titan 5

  • 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 5. Gross Mass: 500,000 kg (1,100,000 lb). Empty Mass: 45,000 kg (99,000 lb). Thrust (vac): 4,457.100 kN (1,001,996 lbf). Isp: 425 sec. Burn time: 420 sec. Isp(sl): 354 sec. Diameter: 6.00 m (19.60 ft). Span: 6.00 m (19.60 ft). Length: 60.00 m (196.00 ft). Propellants: Lox/LH2. No Engines: 1. Engine: PW 1000000 lb LH2. Status: Study 1988. Comments: Part of launch vehicle proposed by Martin as alternative to NLS. All figures estimated based on 1,000,000 lb thrust single engine.

Status: Study 1988.
Gross mass: 1,138,660 kg (2,510,310 lb).
Height: 72.00 m (236.00 ft).
Diameter: 6.00 m (19.60 ft).
Thrust: 16,533.60 kN (3,716,901 lbf).

More... - Chronology...


Associated Countries
Associated Engines
  • PW 1000000 lb LH2 Pratt and Whitney lox/lh2 rocket engine. 4457 kN. Study 1988. Part of launch vehicle proposed by Martin as alternative to NLS. All figures estimated based on 1,000,000 lb thrust single engine. Isp=425s. More...
  • UA1207 CSD solid rocket engine. 7116.9 kN. Isp=272s. First flight 1989. More...

See also
  • Titan The Titan launch vehicle family was developed by the United States Air Force to meet its medium lift requirements in the 1960's. The designs finally put into production were derived from the Titan II ICBM. Titan outlived the competing NASA Saturn I launch vehicle and the Space Shuttle for military launches. It was finally replaced by the USAF's EELV boosters, the Atlas V and Delta IV. Although conceived as a low-cost, quick-reaction system, Titan was not successful as a commercial launch vehicle. Air Force requirements growth over the years drove its costs up - the Ariane using similar technology provided lower-cost access to space. More...

Associated Manufacturers and Agencies
  • Martin American manufacturer of rockets, spacecraft, and rocket engines. Martin Marietta Astronautics Group (1956), Denver, CO, USA. More...

Associated Stages
  • Titan 5 Lox/LH2 propellant rocket stage. Loaded/empty mass 500,000/45,000 kg. Thrust 4,457.10 kN. Vacuum specific impulse 425 seconds. Part of launch vehicle proposed by Martin as alternative to NLS. All figures estimated based on 1,000,000 lb thrust single engine. More...
  • Titan UA1207 Solid propellant rocket stage. Loaded/empty mass 319,330/51,230 kg. Thrust 7,117.00 kN. Vacuum specific impulse 272 seconds. More...

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