Encyclopedia Astronautica
Timberwind Titan


American nuclear-powered orbital launch vehicle.

LEO Payload: 63,636 kg (140,293 lb) to a 155 km orbit in 1985 dollars. Flyaway Unit Cost $: 166.660 million.

Stage Data - Timberwind Titan

  • Stage 0. 2 x Titan USRM. Gross Mass: 357,239 kg (787,577 lb). Empty Mass: 52,040 kg (114,720 lb). Thrust (vac): 7,560.681 kN (1,699,709 lbf). Isp: 286 sec. Burn time: 140 sec. Isp(sl): 259 sec. Diameter: 3.20 m (10.40 ft). Span: 3.20 m (10.40 ft). Length: 33.54 m (110.03 ft). Propellants: Solid. No Engines: 1. Engine: USRM. Other designations: Upgraded Solid Rocket Motor. Status: In production.
  • Stage 1. 1 x Timberwind 75. Gross Mass: 110,000 kg (240,000 lb). Empty Mass: 28,500 kg (62,800 lb). Thrust (vac): 2,206.000 kN (495,928 lbf). Isp: 1,000 sec. Burn time: 357 sec. Isp(sl): 890 sec. Diameter: 6.10 m (20.00 ft). Span: 6.10 m (20.00 ft). Length: 45.50 m (149.20 ft). Propellants: Nuclear/LH2. No Engines: 3. Engine: Timberwind 75. Status: Development 1992.

Status: Development ended 1992.
Gross mass: 900,840 kg (1,986,010 lb).
Payload: 63,636 kg (140,293 lb).
Height: 55.00 m (180.00 ft).
Diameter: 6.10 m (20.00 ft).
Thrust: 13,693.80 kN (3,078,489 lbf).
Apogee: 155 km (96 mi).

More... - Chronology...


Associated Countries
Associated Engines
  • Timberwind 75 DoE nuclear/lh2 rocket engine. 735.5 kN. Development ended 1992. Isp=1000s. Used on Timberwind Titan launch vehicle. More...
  • USRM Hercules solid rocket engine. 7560.5 kN. Isp=286s.Strap-on booster for Titan 4B. First flight 1997. More...

See also
  • Timberwind DARPA project. Nuclear fission engine using pebble bed reactor with spherical fuel elements. More...

Associated Manufacturers and Agencies
  • DARPA American agency overseeing development of rockets and spacecraft. Defense Advanced Research Projects Agency (formerly ARPA), USA. More...

Associated Stages
  • Timberwind 75 Nuclear/LH2 propellant rocket stage. Loaded/empty mass 110,000/28,500 kg. Thrust 2,206.00 kN. Vacuum specific impulse 1000 seconds. More...
  • Titan USRM Solid propellant rocket stage. Loaded/empty mass 357,239/52,040 kg. Thrust 7,560.68 kN. Vacuum specific impulse 286 seconds. More...

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