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Atlas I
Part of Atlas

Atlas Centaur 69

Atlas Centaur 69
Credit: Lockheed Martin

American orbital launch vehicle. The Atlas I launch vehicle was derived from the Atlas G, and included the same basic vehicle components (Atlas booster and Centaur upper stage). Significant improvements in the guidance and control system were made with an emphasis on replacing analog flight control components with digital units interconnected with a digital data bus.

Status: Retired 1997. First Launch: 1990-07-25. Last Launch: 1997-04-25. Number: 11 . Payload: 3,630 kg (8,000 lb). Thrust: 1,939.30 kN (435,972 lbf). Gross mass: 164,300 kg (362,200 lb). Height: 43.90 m (144.00 ft). Diameter: 3.05 m (10.00 ft). Apogee: 185 km (114 mi).

The first flight of an Atlas I was on July 25, 1990. Originally, 18 Atlas I vehicles were planned for manufacture. With the award by the USAF to General Dynamics of the MLV-II vehicle development contract for the Atlas II launch vehicle, the Atlas program rescoped Atlas I production commitments to 11 vehicles and converted the remaining commitments to the Atlas II/IIA/IIAS production effort.

LEO Payload: 3,630 kg (8,000 lb) to a 185 km orbit. Payload: 2,255 kg (4,971 lb) to a GTO. Development Cost $: 400.000 million. Launch Price $: 70.300 million in 1987 dollars in 1994 dollars.

Stage Data - Atlas I


More at: Atlas I.

Family: orbital launch vehicle. Country: USA. Engines: LR105-7, LR89-7, RL-10A-3A. Spacecraft: UHF, HS 376, AS 3000, HS 601, CRRES, GOES-Next, SAX. Projects: BS, Galaxy. Launch Sites: Cape Canaveral, Cape Canaveral LC36B. Stages: Atlas MA-5, Atlas G/H/I, Centaur I. Agency: Convair.
Photo Gallery

Atlas H / Atlas IAtlas H / Atlas I
Atlas I. Atlas H was similar but with smaller-diameter fairing.
Credit: © Mark Wade


Atlas Centaur No.69Atlas Centaur No.69
Credit: Lockheed Martin



1990 July 25 - . 19:21 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas I.
1991 April 18 - . 23:30 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas I. FAILURE: RL-10 Centaur engine turbopump failed at T+361 seconds; destroyed by range safety.. Failed Stage: U.
1992 March 14 - . 00:00 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas I.
1992 August 22 - . 22:40 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas I. FAILURE: Destroyed by range safety. Centaur engine turbopump did not start. Identical to the 18 April 1991 failure.. Failed Stage: U.
1993 March 25 - . 21:38 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas I. FAILURE: Atlas engine failure. Loss of booster engine thrust resulted in a lower-than planned 1560 km x 1900 km orbit. Failed Stage: 1.
1993 September 3 - . 11:17 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas I.
1994 April 13 - . 06:04 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas I.
1994 June 24 - . 13:50 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas I.
1995 May 23 - . 05:52 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas I.
1996 April 30 - . 04:31 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas I.
1997 April 25 - . 05:49 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas I.

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