Challenger (original) (raw)


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Challenger


Part of Shuttle



Shuttle Landing

Shuttle Landing
Credit: NASA


American manned spaceplane.

AKA: OV-099. Status: Operational 1983. First Launch: 1983-04-04. Last Launch: 1986-01-28. Number: 10 . Payload: 24,990 kg (55,090 lb). Thrust: 53.37 kN (11,997 lbf). Gross mass: 116,670 kg (257,210 lb). Unfuelled mass: 104,258 kg (229,849 lb). Specific impulse: 316 s. Height: 37.24 m (122.17 ft). Span: 23.79 m (78.05 ft).

Challenger, the second space shuttle orbiter to become operational at Kennedy Space Center, was named after an American Naval research vessel that sailed the Atlantic and Pacific oceans during the 1870's. The Apollo 17 lunar module also carried the name of Challenger. The Challenger flew nine missions before it was destroyed together with its crew in the explosion of mission STS-51-L on 28 January 1986.

Challenger joined NASA fleet of reusable winged spaceships in July 1982. It flew nine successful Space Shuttle missions. On January 28, 1986, the Challenger and its seven-member crew were lost 73 seconds after launch when a booster failure resulted in the breakup of the vehicle.

Challenger started out as a high-fidelity structural test article (STA-099). The airframe was completed by Rockwell and delivered to Lockheed Plant 42 for structural testing on 02/04/78. The orbiter structure had evolved under such weight-saving pressure that virtually all components of the air frame were required to handle significant structural stress. With such an optimized design, it was difficult to accurately predict mechanical and thermal loading with the computer software available at the time. The only safe approach was to submit the structural test article to intensive testing and analysis. STA-099 underwent 11 months of intensive vibration testing in a 43 ton steel rig built especially for the Space Shuttle Test Program. The rig consisted of 256 hydraulic jacks, distributed over 836 load application points. Under computer control, it was possible to simulate the expected stress levels of launch, ascent, on-orbit, reentry and landing. Three 1 million pound-force hydraulic cylinders were used to simulate the thrust from the Space Shuttle Main Engines. Heating and thermal simulations were also done.

Rockwell's original $2.6 billion contract had authorized the building of a pair of static-test articles (MPTA-098 and STS-099) and two initial flight-test vehicles (OV-101 and OV-102). A decision in 1978 not to modify Enterprise from her ALT configuration would have left Columbia as the only operational orbiter vehicle. Therefore on 1/29/79 NASA awarded Rockwell a supplemental contract to convert Challenger (STA-099) from a test vehicle into a space-rated Orbiter (OV-099).

STA-099 was returned to Rockwell on 11/7/79 and it's conversion into a fully rated Orbiter Vehicle was started. This conversion, while easier than it would have been to convert Enterprise, still involved a major disassembly of the vehicle. Challenger had been built with a simulated crew module and the forward fuselage halves had to be separated to gain access to the crew module. Additionally, the wings were modified and reinforced to incorporate the results of structural testing and two heads-up displays (HUD's) were installed in the cockpit. Empty Weight was 70,500 kg at rollout and 79,415 kg with main engines installed. This was 1310 kg lighter than Columbia

Upgrades and Features

Two orbiters, Challenger and Discovery, were modified at KSC to enable them to carry the Centaur upper stage in the payload bay. These modifications included extra plumbing to load and vent Centaur's cryogenic (Lox/LH2) propellants (other IUS/PAM upper stages used solid propellants). Controls were installed on the aft flight deck for loading and monitoring the Centaur stage. No Centaur flight was ever flown and after the loss of Challenger it was decided that the risk was too great to launch a shuttle with a fuelled Centaur upper stage in the payload bay.

Construction Milestones (MPTA-098)

07/26/72 Contract Award
06/24/75 Start structural assembly of aft-fuselage
07/12/76 Start of Final Assembly
05/27/77 Completed Final Assembly
04/21/78 Flight Readiness Firing

Construction Milestones (STA-099)

07/26/72 Contract Award
11/21/75 Start structural assembly of Crew Module
06/14/76 Start structural assembly of aft-fuselage
03/16/77 Wings arrive at Palmdale from Grumman
09/30/77 Start of Final Assembly
02/10/78 Completed Final Assembly
02/14/78 Rollout from Palmdale

Construction Milestones (OV-099)

01/05/79 Contract Award
01/28/79 Start structural assembly of Crew Module
06/14/76 Start structural assembly of aft-fuselage
03/16/77 Wings arrive at Palmdale from Grumman
11/03/80 Start of Final Assembly
10/23/81 Completed Final Assembly
06/30/82 Rollout from Palmdale
07/01/82 Overland transport from Palmdale to Edwards
07/05/82 Delivery to Kennedy Space Center
12/19/82 Flight Readiness Firing
04/04/83 First Flight (STS-6)

Crew Size: 8. Orbital Storage: 30 days. Habitable Volume: 71.50 m3. Structure: 30,050 kg (66,240 lb). Heat shield: 12,100 kg (26,600 lb). Reaction Control System: 2,800 kg (6,100 lb). Recovery Equipment: 4,200 kg (9,200 lb). Navigation Equipment: 2,000 kg (4,400 lb). Electrical Equipment: 7,000 kg (15,400 lb). Communications Systems: 700 kg (1,540 lb). Crew Seats and Provisions: 750 kg (1,650 lb). Miscellaneous Contingency: 2,400 kg (5,200 lb). Environmental Control System: 2,500 kg (5,500 lb). RCS Coarse No x Thrust: 38 x 387 N. RCS Fine No x Thrust: 6 x 107 N. RCS specific impulse: 289 sec. RCS total impulse: 9,355 kgf-sec. Spacecraft delta v: 700 m/s (2,290 ft/sec). Electric System: 3,100.00 kWh. Electric System: 14.00 average kW.



Family: Spaceplane, US Rocketplanes. Country: USA. Engines: OME. Flights: STS-6, STS-7, STS-8, STS-41-B, STS-41-C, STS-41-G, STS-51-B, STS-51-F, STS-61-A, STS-51-L. Launch Vehicles: Space Shuttle. Propellants: N2O4/MMH. Projects: STS. Launch Sites: Cape Canaveral, Cape Canaveral LC39A, Cape Canaveral LC39B. Agency: NASA, North American. Bibliography: 15, 2, 33, 44, 6, 66, 7, 8.


Photo Gallery



Shuttle Orbiter Shuttle OrbiterShuttle Orbiter 2 viewCredit: © Mark Wade


Shuttle Orbiter Shuttle OrbiterShuttle Orbiter side viewCredit: © Mark Wade


STS-51-B STS-51-BCredit: Manufacturer Image


STS-6 STS-6Deployment of the TDRS by STS-6 ChallengerCredit: NASA


STS-7 STS-7Air to air tracking views of the Challenger during launch of STS-7 missionCredit: NASA


STS-7 STS-7Challenger's RMS arm grasps SPAS-01 during proximity operationsCredit: NASA


STS-7 STS-7Full view of Challenger in space taken by the SPAS satelliteCredit: NASA


STS-7 STS-7Full views of Challenger in space taken by the SPAS satelliteCredit: NASA


STS-7 STS-7Full views of Challenger in space taken by the SPAS satelliteCredit: NASA


STS-7 STS-7STS-7 Challenger landing at Edwards Air Force Base in southern CaliforniaCredit: NASA


STS-41-C STS-41-CLaunch of the Shuttle Challenger during STS 41-C missionCredit: NASA


STS-41-C STS-41-CShuttle Challenger atop NASA 905 approaches KSC runwayCredit: NASA


STS-41-B STS-41-BView of the Challenger from the fixed camera in McCandless's helmetCredit: NASA


STS-41-B STS-41-BView of the Challenger from the fixed camera in McCandless's helmetCredit: NASA


STS-41-B STS-41-BView of retrieval of foot restraint which strayed from ChallengerCredit: NASA


STS-41-B STS-41-BView of the Palapa-B and the Shuttle Challenger after deploymentCredit: NASA


STS-41-B STS-41-BViews of the Challenger landing at Kennedy to end shuttle mission 41-BCredit: NASA


STS-51-B STS-51-BSpacelab D-1 being installed in the Challenger payload bayCredit: NASA


STS-51-B STS-51-BLift-off of shuttle Challenger and mission STS 51-BCredit: NASA


STS-51-L STS-51-LLift-off of the Shuttle Challenger for STS 51-L missionCredit: NASA


STS-51-L STS-51-LLift-off of the Shuttle Challenger for STS 51-L missionCredit: NASA


STS-51-L STS-51-LSigns of black smoke during Lift-off of the Shuttle Challenger STS 51-LCredit: NASA


STS-51-L STS-51-LView of the SRB problems with Challenger after launchCredit: NASA


STS-51-L STS-51-LView of the SRB problems with Challenger after launchCredit: NASA


STS-51-L STS-51-LChallenger SRB destruction after launchCredit: NASA


STS-51-L STS-51-LView of the SRB problems with Challenger after launchCredit: NASA


STS-51-L STS-51-LView of the SRB problems with Challenger after launchCredit: NASA


STS-51-L STS-51-LView of the SRB problems with Challenger after launchCredit: NASA


STS-51-L STS-51-LChallenger accident after launchCredit: NASA


STS-51-L STS-51-LChallenger accident after launchCredit: NASA


STS-51-L STS-51-LChallenger accident after launchCredit: NASA


STS-51-L STS-51-LChallenger accident after launchCredit: NASA


STS-61-A STS-61-ALaunch of the shuttle Challenger and beginning of STS 61-A missionCredit: NASA


STS-51-F STS-51-FLaunch of the STS 51-F ChallengerCredit: NASA


STS-51-F STS-51-FView of the Challenger's payload bay and the SOUP experimentCredit: NASA


STS-51-F STS-51-FLanding of the Shuttle Challenger at Edwards AFB and end of STS 51-F missionCredit: NASA



1978 February 10 - .


1978 February 14 - .


1979 June 21 - .


1979 August 6 - .


1983 April 4 - . 18:30 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. Launch Platform: MLP2. LV Family: Shuttle. Launch Vehicle: Space Shuttle.


1983 April 8 - . 21:05 GMT - .


1983 June 18 - . 11:33 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. Launch Platform: MLP1. LV Family: Shuttle. Launch Vehicle: Space Shuttle.


1983 August 30 - . 06:32 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. Launch Platform: MLP2. LV Family: Shuttle. Launch Vehicle: Space Shuttle.


1984 February 3 - . 13:00 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. Launch Platform: MLP2. LV Family: Shuttle. Launch Vehicle: Space Shuttle.


1984 February 7 - .


1984 February 9 - .


1984 April 6 - . 13:58 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. Launch Platform: MLP1. LV Family: Shuttle. Launch Vehicle: Space Shuttle.


1984 April 8 - . 14:18 GMT - .


1984 April 11 - . 08:58 GMT - .


1984 July - .


1984 October 5 - . 11:03 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. Launch Platform: MLP1. LV Family: Shuttle. Launch Vehicle: Space Shuttle.


1984 October 11 - .


1985 March - .


1985 April 29 - . 16:02 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. Launch Platform: MLP2. LV Family: Shuttle. Launch Vehicle: Space Shuttle.


1985 July - .


1985 July 12 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. LV Family: Shuttle. Launch Vehicle: Space Shuttle.


1985 July 29 - . 21:00 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. Launch Platform: MLP2. LV Family: Shuttle. Launch Vehicle: Space Shuttle.


1985 October 30 - . 17:00 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. Launch Platform: MLP1. LV Family: Shuttle. Launch Vehicle: Space Shuttle.


1986 January 28 - . 16:38 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39B. Launch Platform: MLP2. LV Family: Shuttle. Launch Vehicle: Space Shuttle. FAILURE: Seal on SRB failed, allowed hot gas to burn through External Tank.. Failed Stage: 0.


1986 May - .


1986 July - .


1986 September - .


1986 December - .


1987 March - .


1988 February - .


1988 September 1 - . LV Family: Shuttle. Launch Vehicle: Space Shuttle.



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