Encyclopedia Astronautica
Titan 34B


American orbital launch vehicle. Stretched Titan core, originally developed for Titan 3M MOL, with Agena D upper stage. Guidance provided by the Agena upper stage. The Agena and its payload were completely enclosed in a 3.05 m diameter shroud. 'Ascent Agena' seperated after orbital insertion and did not remain attached to the payload.

LEO Payload: 3,500 kg (7,700 lb) to a 185 km orbit in 1985 dollars. Flyaway Unit Cost $: 25.810 million.

Gross mass: 188,520 kg (415,610 lb).
Payload: 3,500 kg (7,700 lb).
Height: 48.00 m (157.00 ft).
Diameter: 3.05 m (10.00 ft).
Thrust: 1,997.70 kN (449,101 lbf).
Apogee: 185 km (114 mi).
First Launch: 1975.03.10.
Last Launch: 1987.02.12.
Number: 11 .

More... - Chronology...


Associated Countries
Associated Spacecraft
  • Jumpseat American military naval signals reconnaisance satellite. 7 launches, 1971.03.21 (Jumpseat 1) to 1983.07.31 (Jumpseat 7). Jumpseat signals intelligence satellites were launched by Titan 3B or 34B into highly elliptic Molniya-type orbits. More...
  • SDS American military communications satellite. 7 launches, 1976.06.02 (SDS no. 1) to 1987.02.12 (USA 21). SDS satellites, put into Molniya-type orbits, provided data relay services for optical reconnaissance and other military spacecraft. More...

Associated Engines
  • Bell 8096 Bell Nitric acid/UDMH rocket engine. 71.2 kN. Out of production. Isp=292s. Used in Agena stage on top of Thor, Atlas, and Titan launch vehicles. First flight 1963. More...
  • LR87-11 Aerojet N2O4/Aerozine-50 rocket engine. 1218.8 kN. Out of production. Isp=302s. Powered Titan 3 and 4 first stages. Replaced the -9 model, first flown 1968. First flight 1964. More...
  • LR91-11 Aerojet N2O4/Aerozine-50 rocket engine. 467 kN. Out of production. Isp=316s. Second stage engine for Titan 3 and 4. First flight 1968. 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 Launch Sites
  • Vandenberg Vandenberg Air Force Base is located on the Central Coast of California about 240 km northwest of Los Angeles. It is used for launches of unmanned government and commercial satellites into polar orbit and intercontinental ballistic missile test launches toward the Kwajalein Atoll. More...
  • Vandenberg SLC4W Titan, Atlas launch complex. First designated PALC2-3 and used to launch Atlas Agena D with KH-7 spysats. Rebuilt in 1966 to handle Titan 3B with various military payloads. From 1988 used to launch refurbished surplus Titan 2 ICBM's in space launch role. More...

Associated Stages
  • Agena D Nitric acid/UDMH propellant rocket stage. Loaded/empty mass 6,821/673 kg. Thrust 71.17 kN. Vacuum specific impulse 300 seconds. One of the real workhorses of US space exploration, Agena was a restartable upper stage which was also employed as a spacecraft, the whole vehicle going into orbit. A mainstay of the US Air Force reconnaisance satellite program, it also boosted early NASA probes to the moon and planets. Agena played a key role in manned space flight as the target vehicle for rendezvous and docking manoeuvres in NASA's Gemini project. It More...
  • Titan 3A-1 N2O4/Aerozine-50 propellant rocket stage. Loaded/empty mass 116,573/5,443 kg. Thrust 2,339.76 kN. Vacuum specific impulse 302 seconds. More...
  • Titan 3A-2 N2O4/Aerozine-50 propellant rocket stage. Loaded/empty mass 29,188/2,653 kg. Thrust 453.71 kN. Vacuum specific impulse 316 seconds. More...

Titan 34B Chronology


1975 March 10 - . 04:41 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 34B. LV Configuration: Titan 34B 34B-1 (3B-50) / Ascent Agena D.
  • Jumpseat 4 - . Mass: 700 kg (1,540 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Jumpseat. USAF Sat Cat: 7687 . COSPAR: 1975-017A. Apogee: 39,337 km (24,442 mi). Perigee: 295 km (183 mi). Inclination: 63.5000 deg. Period: 702.00 min.

1976 June 2 - . 20:56 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 34B. LV Configuration: Titan 34B 34B-5 (3B-55) / Ascent Agena D.
  • SDS no. 1 - . Payload: SDS no. 1 / OPS 7837. Mass: 700 kg (1,540 lb). Nation: USA. Agency: NRO; USAF. Class: Communications. Type: Military communications satellite. Spacecraft: SDS. USAF Sat Cat: 8871 . COSPAR: 1976-050A. Apogee: 39,315 km (24,429 mi). Perigee: 380 km (230 mi). Inclination: 63.3000 deg. Period: 703.80 min.

1976 August 6 - . 22:21 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 34B. LV Configuration: Titan 34B 34B-6 (3B-56) / Ascent Agena D.
  • SDS no. 2 - . Payload: SDS no. 2 / OPS 7940. Mass: 700 kg (1,540 lb). Nation: USA. Agency: NRO; USAF. Class: Communications. Type: Military communications satellite. Spacecraft: SDS. USAF Sat Cat: 9270 . COSPAR: 1976-080A. Apogee: 39,315 km (24,429 mi). Perigee: 380 km (230 mi). Inclination: 63.3000 deg. Period: 703.80 min. Summary: Satellite Data Systems 2..

1978 February 25 - . 05:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 34B. LV Configuration: Titan 34B 34B-2 (3B-49) / Ascent Agena D.
  • Jumpseat 5 - . Mass: 700 kg (1,540 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Jumpseat. USAF Sat Cat: 10688 . COSPAR: 1978-021A. Apogee: 39,377 km (24,467 mi). Perigee: 311 km (193 mi). Inclination: 63.2000 deg. Period: 703.70 min.

1978 August 5 - . 05:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 34B. LV Configuration: Titan 34B 34B-7 (3B-57) / Ascent Agena D.
  • SDS no. 3 - . Payload: SDS no. 3 / OPS 7310. Mass: 700 kg (1,540 lb). Nation: USA. Agency: NRO; USAF. Class: Communications. Type: Military communications satellite. Spacecraft: SDS. Decay Date: 2001-02-08 . USAF Sat Cat: 10993 . COSPAR: 1978-075A. Apogee: 39,053 km (24,266 mi). Perigee: 315 km (195 mi). Inclination: 62.5000 deg. Period: 697.10 min.

1980 December 13 - . 16:04 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 34B. LV Configuration: Titan 34B 34B-3 (3B-53).
  • SDS no. 4 - . Payload: SDS no. 4 / OPS 5805. Mass: 700 kg (1,540 lb). Nation: USA. Agency: NRO; USAF. Class: Communications. Type: Military communications satellite. Spacecraft: SDS. USAF Sat Cat: 12093 . COSPAR: 1980-100A. Apogee: 39,130 km (24,310 mi). Perigee: 250 km (150 mi). Inclination: 63.8000 deg. Period: 697.40 min.

1981 April 24 - . 21:32 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 34B. LV Configuration: Titan 34B 34B-8 (3B-60) / Ascent Agena D.
  • Jumpseat 6 - . Mass: 700 kg (1,540 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Jumpseat. USAF Sat Cat: 12418 . COSPAR: 1981-038A. Apogee: 708 km (439 mi). Perigee: 188 km (116 mi). Inclination: 62.7000 deg. Period: 93.00 min. Summary: SDS 4 not deployed..

1983 July 31 - . 15:41 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 34B. LV Configuration: Titan 34B 34B-9 (3B-65) / Ascent Agena D.
  • Jumpseat 7 - . Mass: 700 kg (1,540 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Jumpseat. USAF Sat Cat: 14237 . COSPAR: 1983-078A. Apogee: 39,321 km (24,432 mi). Perigee: 1,028 km (638 mi). Inclination: 63.4000 deg. Period: 717.10 min.

1984 August 28 - . 18:03 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 34B. LV Configuration: Titan 34B 34B-4 (3B-64) / Ascent Agena D.
  • USA 4 - . Payload: SDS no. 5. Mass: 700 kg (1,540 lb). Nation: USA. Agency: NRO; USAF. Class: Communications. Type: Military communications satellite. Spacecraft: SDS. USAF Sat Cat: 15226 . COSPAR: 1984-091A. Apogee: 39,975 km (24,839 mi). Perigee: 380 km (230 mi). Inclination: 63.3000 deg. Period: 717.80 min. Summary: Satellite Data Systems 2..

1985 February 8 - . 06:10 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 34B. LV Configuration: Titan 34B 34B-10 (3B-69) / Ascent Agena D.
  • USA 9 - . Payload: SDS no. 6. Mass: 700 kg (1,540 lb). Nation: USA. Agency: NRO; USAF. Class: Communications. Type: Military communications satellite. Spacecraft: SDS. USAF Sat Cat: 15546 . COSPAR: 1985-014A. Apogee: 39,775 km (24,714 mi). Perigee: 400 km (240 mi). Inclination: 63.0000 deg. Period: 717.80 min. Summary: Satellite Data Systems 2..

1987 February 12 - . 06:40 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 34B. LV Configuration: Titan 34B 34B-51 (3B-66) / Ascent Agena D.
  • USA 21 - . Payload: SDS no. 7. Mass: 700 kg (1,540 lb). Nation: USA. Agency: NRO; USAF. Class: Communications. Type: Military communications satellite. Spacecraft: SDS. USAF Sat Cat: 17506 . COSPAR: 1987-015A. Apogee: 39,750 km (24,690 mi). Perigee: 610 km (370 mi). Inclination: 63.4000 deg. Period: 718.10 min.

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