Planned American expendable launch vehicle
Titan IIIM Function Expendable launch system Manufacturer Martin Marietta Country of origin United States Cost per launch US$22 million (1965) Size Height 39.0 m (128.0 ft) Diameter 3.05 m (10.0 ft) Mass 836,560 kg (1,844,300 lb) Stages 2 Capacity
Payload to 185 km (115 mi) Mass 17,000 kg (37,000 lb)
Associated rockets Family Titan Launch history Status Cancelled Launch sites CCAFS LC-40 Vandenberg AFB SLC-6 Total launches 0 Boosters – UA1207 No. boosters 2 Height 34.14 m (112.0 ft) Diameter 3.05 m (10.0 ft) Empty mass 51,230 kg (112,940 lb) Gross mass 319,330 kg (704,000 lb) Powered by off Maximum thrust 7,116.999 kN (1,599,965 lbf ) Specific impulse 272 s (2.67 km/s) Burn time 120 s Propellant Solid First stage – Titan IIIB-1 Height 23.99 m (78.7 ft) Diameter 3.05 m (10.0 ft) Empty mass 7,000 kg (15,400 lb) Gross mass 139,935 kg (308,504 lb) Powered by 2 × LR87-11 Maximum thrust 2,413.191 kN (542,507 lbf ) Specific impulse 302 s (2.96 km/s) Burn time 161 s Propellant A-50 / N2 O4 Second stage – Titan IIIB-2 Height 8.6 m (28.2 ft) Diameter 3.05 m (10.0 ft) Empty mass 2,900 kg (6,400 lb) Gross mass 37,560 kg (82,810 lb) Powered by 1 × LR91-11 Maximum thrust 460.314 kN (103,483 lbf ) Specific impulse 316 s (3.10 km/s) Burn time 230 s Propellant A-50 / N2 O4
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The Titan IIIM was a planned American expendable launch system , intended to launch the Manned Orbiting Laboratory and other payloads. Development was cancelled in 1969. The stretched core stage was used on some versions of the Titan IIIB and the projected UA1207 solid booster rockets were eventually used on the Titan IV .
Development
1969 April 27 - First static test firing of Titan IIIM seven segment solid rocket booster motor. Firing took place at the United Technologies Coyote Canyon test site at the southern edge of San Jose, California , and generated 700,000 kgf (6,900,000 N; 1,500,000 lbf) for two minutes. Planned flights
1970 - Uncrewed Gemini -B/Titan IIIM qualification flight
1971 - Uncrewed Gemini-B/Titan IIIM qualification flight References
^ "Titan 3M" . Astronautix.com . Archived from the original on August 20, 2016. Retrieved 25 June 2016.
Shayler, David J. (2002). "Military Gemini" . Gemini: Steps to the Moon . Springer-Praxis. ISBN 1-85233-405-3
Rogers, Paul (6 October 2014). "Historic Silicon Valley site becoming new public open space preserve" . San Jose Mercury News . American Geophysical Union. Retrieved 31 December 2018.
External links
Titan IIIM at Wikimedia Commons
Titan rockets Main articles
Rockets Missiles
Launch Systems
Unbuilt
Launch sites Components Boosters
Upper stages
Engines
Manufacturers
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Titan IIIM proposal
Media related to Titan IIIM at Wikimedia Commons
