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HS 312 / HS 351 / HS 353
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Hughes satellite bus used for the Intelsat-4 and Comsat satellite series.


More at: HS 312 / HS 351 / HS 353.

Subtopics

Intelsat 4 American communications satellite. The Intelsat 4 series continued the growth of the Intelsat communications network. Built by Hughes for Intelsat, International. Launched 1971 - 1975. Used the HS-312 bus.

Intelsat 4A American communications satellite. Intelsat 4A satellites increased satellite capacity to 7250 voice circuits or 2 TV channels. Built by Hughes for Intelsat, International. Launched 1975 - 1978. Used the HS-353 bus.

Comstar 1A, 1B, 1C, 1D / Parallax 1 / Esiafi 1 Null



1971 January 26 - . 00:36 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36A. LV Family: Atlas. Launch Vehicle: Atlas SLV-3C Centaur.
1971 December 20 - . 01:10 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36A. LV Family: Atlas. Launch Vehicle: Atlas SLV-3C Centaur.
1972 January 23 - . 00:12 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas SLV-3C Centaur.
1972 June 13 - . 21:53 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas SLV-3C Centaur.
1973 August 23 - . 22:57 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36A. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
1974 November 21 - . 23:43 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
1975 February 20 - . 23:35 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36A. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur. FAILURE: Staging electrical disconnect.. Failed Stage: U.
1975 May 22 - . 22:04 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36A. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
1975 September 26 - . 00:17 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
1976 January 29 - . 23:56 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
1976 May 13 - . 22:28 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36A. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
1976 July 22 - . 22:04 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
1977 May 26 - . 21:47 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36A. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
1977 September 30 - . 01:02 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36A. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur. FAILURE: Atlas failure - gas generator hot gas leak.. Failed Stage: 1.
1978 January 7 - . 00:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
1978 March 31 - . 23:36 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
1978 June 29 - . 22:24 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
1981 February 21 - . 23:23 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36A. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.

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