Encyclopedia Astronautica
Trumpet


American military naval signals reconnaisance satellite. 3 launches, 1994.05.03 (USA 103) to 1997.11.08 (USA 136).

Trumpet signals intelligence satellites were equipped with a large deployable mesh antenna, and were designed to monitor Soviet communications and missile tests. They were placed into Molniya-type orbits. The structural limitation of the Centaur upper stage implies their mass was limited to 5200 kg, although the theoretical payload of the Titan IV launch vehicle into a Molniya-type orbit was more like 8,000 kg.

First Launch: 1994.05.03.
Last Launch: 1997.11.08.
Number: 3 .

More... - Chronology...


Associated Countries
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 Launch Vehicles
  • Titan American orbital launch vehicle. 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...
  • Titan 4 American orbital launch vehicle. Developed to handle military payloads designed for launch on Shuttle from Vandenberg before the USAF pulled out of the Shuttle program after the Challenger disaster. Further stretch of core from Titan 34, 7-segment solid rocket motors (developed for MOL but not used until 25 years later). Enlarged Centaur G used as upper stage (variant of stage designed for Shuttle but prohibited for flight safety reasons after Challenger). Completely revised electronics. All the changes resulted in major increase in cost of launch vehicle and launch operations. More...

Associated Manufacturers and Agencies
  • USAF American agency overseeing development of rockets and spacecraft. United States Air Force, USA. More...

Bibliography
  • McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: here.
  • McDowell, Jonathan, Jonathan's Space Report (Internet Newsletter), Harvard University, Weekly, 1989 to Present. Web Address when accessed: here.
  • JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: here.

Associated Launch Sites
  • Cape Canaveral America's largest launch center, used for all manned launches. Today only six of the 40 launch complexes built here remain in use. Located at or near Cape Canaveral are the Kennedy Space Center on Merritt Island, used by NASA for Saturn V and Space Shuttle launches; Patrick AFB on Cape Canaveral itself, operated the US Department of Defense and handling most other launches; the commercial Spaceport Florida; the air-launched launch vehicle and missile Drop Zone off Mayport, Florida, located at 29.00 N 79.00 W, and an offshore submarine-launched ballistic missile launch area. All of these take advantage of the extensive down-range tracking facilities that once extended from the Cape, through the Caribbean, South Atlantic, and to South Africa and the Indian Ocean. More...
  • Cape Canaveral LC41 Titan, Atlas V launch complex. Complexes 40 and 41 were constructed as part of the Integrate-Transfer-Launch (ITL) Titan launch facility at the north end of Cape Canaveral in the early 1960s. Over the next three decades, the complexes supported a wide variety of military space missions involving Titan IIIC, Titan 34D and Titan IV. Complex 41 was deactivated at the end of 1977, then upgraded for the Titan IV program in the 1986-88 period. In October 1999, Complex 41 was demolished with high explosives in order for a new pad for launch of the Atlas 5 rocket to be erected. By then it had been the starting point for 27 Titan flights. More...

Trumpet Chronology


1994 May 3 - . 15:55 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan Centaur 401A. LV Configuration: Titan 401A/Centaur K-7/TC-10 (45E-1).
  • USA 103 - . Payload: Trumpet 1. Mass: 5,200 kg (11,400 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Trumpet. USAF Sat Cat: 23097 . COSPAR: 1994-026A. Apogee: 537 km (333 mi). Perigee: 518 km (321 mi). Inclination: 55.1000 deg. Period: 95.20 min. Summary: Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1995 July 10 - . 12:38 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan Centaur 401A. LV Configuration: Titan 401A/Centaur K-19/TC-8 (45E-5).
  • USA 112 - . Payload: Trumpet 2. Mass: 5,200 kg (11,400 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Trumpet. USAF Sat Cat: 23609 . COSPAR: 1995-034A. Apogee: 39,000 km (24,000 mi). Perigee: 1,000 km (600 mi). Inclination: 64.0000 deg.

1997 November 8 - . 02:05 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan Centaur 401A. LV Configuration: Titan 401A/Centaur 4A-17/TC-16 (45E-?).
  • USA 136 - . Payload: Trumpet 3. Mass: 5,200 kg (11,400 lb). Nation: USA. Agency: NRO; USAF. Manufacturer: Kent. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Trumpet. USAF Sat Cat: 25034 . COSPAR: 1997-068A. Apogee: 39,059 km (24,270 mi). Perigee: 1,100 km (600 mi). Inclination: 63.6000 deg.

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