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วันจันทร์ที่ 25 มีนาคม พ.ศ. 2556
14. Shuttle Basics
12. Space Shuttle Endeavour
Space Shuttle Endeavour
Space Shuttle Endeavour (Orbiter Vehicle Designation: OV-105) is one of the retired orbiters of the Space Shuttle program of NASA, the space agency of the United States.[1] Endeavour was the fifth and final spaceworthy NASA space shuttle to be built, and first flew in May 1992 on mission STS-49 and its last mission STS-134 was in May 2011.[2][3] The STS-134 mission was originally planned as the final mission of the Space Shuttle program,[4] but with authorization of the STS-135 mission, Atlantis became the last Space Shuttle to fly.
The United States Congress authorized the construction of Endeavour in 1987 to replace Challenger, which was lost in the STS-51-L launch accident in 1986. Structural spares built during the construction of Discovery and Atlantis, two of the previous shuttles, were used in its assembly. NASA chose to build Endeavour from spares rather than refitting Enterprise or accepting a Rockwell International proposal to build two shuttles for the price of one of the original shuttles, on cost grounds.
http://en.wikipedia.org/wiki/Space_Shuttle_Endeavour
Space Shuttle Endeavour
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Endeavour OV-105 | |
---|---|
Space Shuttle Endeavour on launch pad 39A prior to mission STS-127, May 31, 2009 | |
OV designation | OV-105 |
Country | United States |
Contract award | July 31, 1987 |
Named after | HMS Endeavour (1764) |
Status | Retired, displayed at California Science Center in Los Angeles, California |
First flight | STS-49 May 7, 1992 – May 16, 1992 |
Last flight | Ferry flight on SCA NASA905 to Los Angeles, California September 19–21, 2012 |
Number of missions | 25 |
Crew members | 154 |
Time spent in space | 296 days, 3 hours, 34 minutes, 2 seconds |
Number of orbits | 4,671 |
Distance travelled | 122,883,151 mi (197,761,262 km) |
Satellites deployed | 3 |
Mir dockings | 1 |
ISS dockings | 12 |
The United States Congress authorized the construction of Endeavour in 1987 to replace Challenger, which was lost in the STS-51-L launch accident in 1986. Structural spares built during the construction of Discovery and Atlantis, two of the previous shuttles, were used in its assembly. NASA chose to build Endeavour from spares rather than refitting Enterprise or accepting a Rockwell International proposal to build two shuttles for the price of one of the original shuttles, on cost grounds.
http://en.wikipedia.org/wiki/Space_Shuttle_Endeavour
11. Space Shuttle Atlantis
Space Shuttle Atlantis
The Space Shuttle Atlantis (Orbiter Vehicle Designation: OV‑104) was a Space Shuttle orbiter in the Space Shuttle fleet belonging to the National Aeronautics and Space Administration (NASA), the spaceflight and space exploration agency of the United States.[2] Atlantis was the fourth operational (and the next-to-the-last) Space Shuttle to be constructed by the Rockwell International company in Southern California, and it was delivered to the John F. Kennedy Space Center in eastern Florida in April 1985.[3][4] Atlantis was the only orbiter which lacked the ability to draw power from the International Space Station while docked there; it had to continue to provide its own power through fuel cells.[5]
The last mission of Atlantis was STS-135, the last flight of the Shuttle program. This final flight, authorized in October 2010, brought additional supplies to the International Space Station and took advantage of the processing performed for the Launch on Need mission, which would only have been flown in the event that Endeavour's STS-134 crew required rescue.[6] Atlantis launched successfully for the final time on 8 July 2011 at 16:29 UTC, landing at the John F. Kennedy Space Center on 21 July 2011 at 09:57 UTC.
By the end of its final mission, Atlantis had orbited the Earth 4,848 times, traveling nearly 126,000,000 mi (203,000,000 km) in space or more than 525 times the distance from the Earth to the Moon.
Atlantis was named after RV Atlantis, a two-masted sailing ship that operated as the primary research vessel for the Woods Hole Oceanographic Institution from 1930 to 1966.[7]
http://en.wikipedia.org/wiki/Space_Shuttle_Atlantis
Space Shuttle Atlantis
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Atlantis OV‑104 | |
---|---|
Atlantis launching STS-122 mission to dock with the International Space Station | |
OV designation | OV-104 |
Country | United States of America |
Contract award | 29 January 1979 |
Named after | RV Atlantis |
Status | Retired. Displayed at Kennedy Space Center Visitor Complex in Florida. |
First flight | STS-51-J 3–7 October 1985 |
Last flight | STS-135 8-21 July 2011 |
Number of missions | 33 |
Crew members | 207[1] |
Time spent in space | 306 days, 14 hours, 12 minutes, 43 seconds as of STS-135 |
Number of orbits | 4,848 |
Distance travelled | 125,935,769 miles (202,673,974 km) as of STS-135 |
Satellites deployed | 14 |
Mir dockings | 7 |
ISS dockings | 12 |
The last mission of Atlantis was STS-135, the last flight of the Shuttle program. This final flight, authorized in October 2010, brought additional supplies to the International Space Station and took advantage of the processing performed for the Launch on Need mission, which would only have been flown in the event that Endeavour's STS-134 crew required rescue.[6] Atlantis launched successfully for the final time on 8 July 2011 at 16:29 UTC, landing at the John F. Kennedy Space Center on 21 July 2011 at 09:57 UTC.
By the end of its final mission, Atlantis had orbited the Earth 4,848 times, traveling nearly 126,000,000 mi (203,000,000 km) in space or more than 525 times the distance from the Earth to the Moon.
Atlantis was named after RV Atlantis, a two-masted sailing ship that operated as the primary research vessel for the Woods Hole Oceanographic Institution from 1930 to 1966.[7]
http://en.wikipedia.org/wiki/Space_Shuttle_Atlantis
8. Columbia
STS-1
STS-1 was the first orbital flight of NASA's Space Shuttle program. Space Shuttle Columbia launched on 12 April 1981, and returned to Earth on 14 April, having orbited the Earth 37 times during its 54.5-hour mission. Columbia carried a crew of two – mission commander John W. Young and pilot Robert L. Crippen. It was the first American manned space flight since the Apollo-Soyuz Test Project on 15 July 1975. STS-1 was also the only US manned maiden test flight of a new spacecraft system, although it was the culmination of atmospheric testing of the Space Shuttle
http://en.wikipedia.org/wiki/STS-1
STS-1
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This article is about the Space Shuttle flight. For Synchronous Transport Signal (level)-1 in the SONET hierarchy, see Synchronous optical networking. For the gene, see STS-1 (gene).
STS-1 | |||||
---|---|---|---|---|---|
Mission insignia | |||||
Mission statistics | |||||
Mission name | STS-1 | ||||
Space shuttle | Columbia | ||||
Crew size | 2 | ||||
Launch pad | Kennedy Space Center, Florida LC 39A | ||||
Launch date | 12 April 1981 12:00:03 (1981-04-12T12:00:03) UTC | ||||
Landing site | Edwards AFB, Runway 23 | ||||
Landing | 14 April 1981 18:20:57 (1981-04-14T18:20:58) UTC | ||||
Mission duration | 2 days, 6 hours, 20 minutes, 53 seconds | ||||
Number of orbits | 37 | ||||
Apogee | 156 mi (251 km) | ||||
Perigee | 149 mi (240 km) | ||||
Orbital period | 89.4 min | ||||
Orbital altitude | 307 km (191 mi) | ||||
Orbital inclination | 40.4 degrees | ||||
Distance traveled | 1,728,000 kilometres (1,074,000 mi) | ||||
Crew photo | |||||
Crew members John W. Young (left) and Robert L. Crippen pose in ejection escape suits (EES) with a small model of the Space Shuttle orbiter. | |||||
Related missions | |||||
|
http://en.wikipedia.org/wiki/STS-1
7. Spacelab
Spacelab
Spacelab formally began in 1973, after a meeting in Brussels, Belgium, by European heads of state.[21] Within the decade, Spacelab would go into orbit and provide not only Europe, but also the United States, with an orbital workshop and hardware system.[21] International cooperation, science, and exploration were realized on Spacelab.[38]
http://en.wikipedia.org/wiki/Space_Shuttle
Spacelab
Main article: Spacelab
A major component of the Space Shuttle Program was Spacelab, primarily contributed by a consortium of European countries, and operated in conjunction with the United States and international partners.[38] Supported by a modular system of pressurized modules, pallets, and systems, Spacelab missions executed on multidisciplinary science, orbital logistics, international cooperation.[38] Over 29 missions flew on subjects ranging from astronomy, microgravity, radar, and life sciences, to name a few.[38] Spacelab hardware also supported missions such as Hubble (HST) servicing and space station resupply.[38] STS-2 and STS-3 provided testing, and the first full mission was Spacelab-1 (STS-9) launched on November 28, 1983.[38]Spacelab formally began in 1973, after a meeting in Brussels, Belgium, by European heads of state.[21] Within the decade, Spacelab would go into orbit and provide not only Europe, but also the United States, with an orbital workshop and hardware system.[21] International cooperation, science, and exploration were realized on Spacelab.[38]
http://en.wikipedia.org/wiki/Space_Shuttle
6. Space Shuttle Orbiter
Space Shuttle Orbiter
The Space Shuttle Orbiter was the orbital spacecraft of the Space Shuttle program operated by NASA, the space agency of the United States.[1] The orbiter was a reusable winged "space-plane", a mixture of rockets, spacecraft, and aircraft. This space-plane could carry crews and payloads into low Earth orbit, perform on-orbit operations, then re-enter the atmosphere and land as a glider, returning its crew and any on-board payload to the Earth.
A total of six Orbiters were built for flight: Columbia, Challenger, Discovery, Atlantis, Endeavour and Enterprise. All were built by the Pittsburgh, PA based Rockwell International company. The first Orbiter to fly, Enterprise, took its maiden flight in 1977. Built solely for unpowered atmospheric test flights and landings, its take-off was from the back of a modified Boeing-747 cargo plane, the Shuttle Carrier Aircraft, while the remaining Orbiters were built for orbital space flights, launched vertically as part of the full Space Shuttle package. Enterprise was partially disassembled and retired after completion of critical testing.
Columbia was the first Orbiter to launch into space as a Space Shuttle, in 1981. The first launches of Challenger, Discovery, and finally Atlantis, followed in 1983, 1984 and 1985 respectively. In 1986, Challenger was destroyed in an accident after launch. Endeavour was built as Challenger's replacement, and was first launched in 1992. In 2003, Columbia was destroyed during re-entry, leaving just three remaining Orbiters. Discovery completed its final flight on March 9, 2011, and Endeavour completed its final flight on June 1, 2011. Atlantis completed the last ever Shuttle flight, STS-135, on July 21, 2011.
In addition to their crews and payloads, the reusable Orbiter carried most of the Space Shuttle System's liquid-fueled rocket propulsion system, but both the liquid hydrogen fuel and the liquid oxygen oxidizer for its three main rocket engines were fed from an external cryogenic propellant tank, and there were also two reusable large solid-fueled rocket boosters that helped to lift both the Orbiter and its external propellant tanks during approximately the first two minutes of its ascent into outer space. The orbiters also carried hypergolic fuels for use in their RCS systems and in the Orbital Manoeuvring System.
http://en.wikipedia.org/wiki/Space_Shuttle_orbiter
Space Shuttle Orbiter
From Wikipedia, the free encyclopedia
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The Discovery orbiter approaches the ISS on STS-121 | |
Operator | NASA |
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Mission type | Orbiter |
Satellite of | Earth |
Launch vehicle | Space Shuttle Solid Rocket Booster |
Launch site | Kennedy Space Center |
Homepage | Space Shuttle Home |
A total of six Orbiters were built for flight: Columbia, Challenger, Discovery, Atlantis, Endeavour and Enterprise. All were built by the Pittsburgh, PA based Rockwell International company. The first Orbiter to fly, Enterprise, took its maiden flight in 1977. Built solely for unpowered atmospheric test flights and landings, its take-off was from the back of a modified Boeing-747 cargo plane, the Shuttle Carrier Aircraft, while the remaining Orbiters were built for orbital space flights, launched vertically as part of the full Space Shuttle package. Enterprise was partially disassembled and retired after completion of critical testing.
Columbia was the first Orbiter to launch into space as a Space Shuttle, in 1981. The first launches of Challenger, Discovery, and finally Atlantis, followed in 1983, 1984 and 1985 respectively. In 1986, Challenger was destroyed in an accident after launch. Endeavour was built as Challenger's replacement, and was first launched in 1992. In 2003, Columbia was destroyed during re-entry, leaving just three remaining Orbiters. Discovery completed its final flight on March 9, 2011, and Endeavour completed its final flight on June 1, 2011. Atlantis completed the last ever Shuttle flight, STS-135, on July 21, 2011.
In addition to their crews and payloads, the reusable Orbiter carried most of the Space Shuttle System's liquid-fueled rocket propulsion system, but both the liquid hydrogen fuel and the liquid oxygen oxidizer for its three main rocket engines were fed from an external cryogenic propellant tank, and there were also two reusable large solid-fueled rocket boosters that helped to lift both the Orbiter and its external propellant tanks during approximately the first two minutes of its ascent into outer space. The orbiters also carried hypergolic fuels for use in their RCS systems and in the Orbital Manoeuvring System.
http://en.wikipedia.org/wiki/Space_Shuttle_orbiter
5. Space Shuttle Explorer
Space Shuttle Explorer (honorary Orbiter Vehicle Designation: OV-100) is a full-scale, high-fidelity replica of the Space Shuttle. It was built in Apopka, Florida by Guard-Lee and installed at Kennedy Space Center Visitor Complex in 1993. It was built using schematics, blueprints and archival documents provided by NASA and by shuttle contractors such as Rockwell International. While many of the features on the replica are simulated, some of the model's core parts, including the Michelin tires used on the landing gear, are authentic to the Space Shuttle Program.[1] The model's length is 122.7 feet, its height is 54 feet, and its wingspan is 78 feet.
Internal details of the mock-up are not remarkably accurate, though the size and scope of the payload bay is correct.[citation needed] Externally, the mock-up features simulated thermal protection system tiles (bearing numbers, as the genuine flight articles used to), paneling that looks like reinforced carbon–carbon (RCC) panels on the leading edges of the wings, and actual Michelin tires on the landing gear which were flown in space. Handling points are also shown, but the external detailing does not extend to the inclusion of thermal blankets.[2]
http://en.wikipedia.org/wiki/Space_Shuttle_Explorer
Space Shuttle Explorer
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Explorer | |
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Space Shuttle replica Explorer at Kennedy Space Center, Florida | |
OV designation | OV-100 |
Country | United States |
Contract award | Guard-Lee |
Status | Awaiting interior refurbishment at Johnson Space Center |
Internal details of the mock-up are not remarkably accurate, though the size and scope of the payload bay is correct.[citation needed] Externally, the mock-up features simulated thermal protection system tiles (bearing numbers, as the genuine flight articles used to), paneling that looks like reinforced carbon–carbon (RCC) panels on the leading edges of the wings, and actual Michelin tires on the landing gear which were flown in space. Handling points are also shown, but the external detailing does not extend to the inclusion of thermal blankets.[2]
http://en.wikipedia.org/wiki/Space_Shuttle_Explorer
4. History
History
The spacecraft takes its name from four British ships of exploration named Discovery, primarily HMS Discovery, one of the ships commanded by Captain James Cook during his third and final major voyage from 1776 to 1779.
Others include
Had the planned STS-62-A mission from Vandenberg Air Force Base in 1986 for the United States Department of Defense gone ahead, Discovery would have flown it. Its final mission, STS-133, landed on March 9, 2011, in Kennedy Space Center, Florida. After decommissioning and delivery, the spacecraft is displayed in Virginia at the Steven F. Udvar-Hazy Center, an annex of the Smithsonian Institution's National Air and Space Museum.[1]
http://www.blogger.com/blogger.g?blogID=529610793992334276#editor/target=post;postID=234312298178177415
History
The spacecraft takes its name from four British ships of exploration named Discovery, primarily HMS Discovery, one of the ships commanded by Captain James Cook during his third and final major voyage from 1776 to 1779.
Others include
- Henry Hudson's Discovery, which he used in 1610–1611 to search for a Northwest Passage. This ship had previously been used in the 1607 founding of Jamestown, the first permanent English settlement in what was to become the United States;
- HMS Discovery, one of the ships which took Captain George Nares' British Arctic Expedition of 1875–1876 to the North Pole; and
- RRS Discovery, a Royal Geographical Society research vessel which, under the command of Captain Robert Falcon Scott and Ernest Shackleton, was the main ship of the 1901–1904 "Discovery Expedition" to Antarctica[8] which is still preserved as a museum in Dundee, Scotland.
Had the planned STS-62-A mission from Vandenberg Air Force Base in 1986 for the United States Department of Defense gone ahead, Discovery would have flown it. Its final mission, STS-133, landed on March 9, 2011, in Kennedy Space Center, Florida. After decommissioning and delivery, the spacecraft is displayed in Virginia at the Steven F. Udvar-Hazy Center, an annex of the Smithsonian Institution's National Air and Space Museum.[1]
http://www.blogger.com/blogger.g?blogID=529610793992334276#editor/target=post;postID=234312298178177415
3. Spacecraft Discovery
Space Shuttle Discovery (Orbiter Vehicle Designation: OV-103) is one of the retired orbiters of the Space Shuttle program of NASA, the space agency of the United States,[4] and was operational from its maiden flight, STS-41-D on August 30, 1984, until its final landing during STS-133 on March 9, 2011. Discovery has flown more than any other spacecraft having completed 39 successful missions in over 27 years of service.[5]
In 1984, Discovery became the third operational orbiter following Columbia and Challenger,[6] and made its final touchdown at Kennedy Space Center on March 9, 2011 at 10:57:17 CST,[7] having spent a cumulative total of almost a full year in space. Discovery has performed both research and International Space Station (ISS) assembly missions. Discovery also flew the Hubble Space Telescope into orbit. Discovery was the first operational shuttle to be retired, followed by Endeavour
Space Shuttle Discovery
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Discovery OV-103 | |
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Space Shuttle Discovery launches from NASA Kennedy Space Center Launch Pad 39A on mission STS-124. | |
OV designation | OV-103 |
Country | United States Of America |
Contract award | January 29, 1979 |
Named after | Discovery (1602), HMS Discovery (1774), HMS Discovery (1874), RRS Discovery (1901) |
Status | Retired, on display at the Steven F. Udvar-Hazy Center in Chantilly, Virginia[1] |
First flight | STS-41-D August 30, 1984 (1984-08-30) – September 5, 1984 |
Last flight | Ferry flight on SCA NASA905 to Washington DC April 17, 2012 |
Number of missions | 39 |
Crew members | 252[2] |
Time spent in space | 365 days, 22 hours, 39 minutes, 33 seconds |
Distance travelled | 148,221,675 mi (238,539,663 km)[3] |
Satellites deployed | 31 (including Hubble Space Telescope) |
Mir dockings | 1[3] |
ISS dockings | 13[3] |
In 1984, Discovery became the third operational orbiter following Columbia and Challenger,[6] and made its final touchdown at Kennedy Space Center on March 9, 2011 at 10:57:17 CST,[7] having spent a cumulative total of almost a full year in space. Discovery has performed both research and International Space Station (ISS) assembly missions. Discovery also flew the Hubble Space Telescope into orbit. Discovery was the first operational shuttle to be retired, followed by Endeavour
วันอาทิตย์ที่ 24 มีนาคม พ.ศ. 2556
2 . The dargon spacecraft
Successors
The Commercial Orbital Transportation Services (COTS) program began in 2006 with the purpose of creating commercially operated unmanned cargo vehicles to service the ISS.[24] The first of these vehicles, SpaceX's Dragon, became operational in 2012, and the second, Orbital Sciences' Cygnus, is expected to do so in 2013.[25] The Commercial Crew Development (CCDev) program was initiated in 2010 with the purpose of creating commercially operated manned spacecraft capable of delivering at least four crew members to the ISS, staying docked for 180 days and then returning them back to Earth.[26] These spacecraft are expected to become operational around 2017.[27]
Although the Constellation program was canceled it has been replaced with a very similar beyond low-Earth orbit program. The Orion spacecraft has been left virtually unchanged from its previous design. The planned Ares V rocket has been replaced with the smaller Space Launch System (SLS), which is planned to launch both Orion and other necessary hardware.[28] The Exploration Flight Test-1 (EFT-1), an unmanned test flight of Orion's crew module, is planned to be launched in 2014 on a Delta IV Heavy rocket.[29] Exploration Mission-1 (EM-1) is the unmanned initial launch of SLS, which is planned for 2017.[29] Exploration Mission-2 (EM-2) is the first manned flight of Orion and SLS and is scheduled for 2019.[29] EM-2 is 10-14 day mission planned to place a crew of four into Lunar orbit. As of March 2012, the destination for EM-3 and immediate destination focus for this new program is still in-flux.[30]
Successors
The Commercial Orbital Transportation Services (COTS) program began in 2006 with the purpose of creating commercially operated unmanned cargo vehicles to service the ISS.[24] The first of these vehicles, SpaceX's Dragon, became operational in 2012, and the second, Orbital Sciences' Cygnus, is expected to do so in 2013.[25] The Commercial Crew Development (CCDev) program was initiated in 2010 with the purpose of creating commercially operated manned spacecraft capable of delivering at least four crew members to the ISS, staying docked for 180 days and then returning them back to Earth.[26] These spacecraft are expected to become operational around 2017.[27]
Although the Constellation program was canceled it has been replaced with a very similar beyond low-Earth orbit program. The Orion spacecraft has been left virtually unchanged from its previous design. The planned Ares V rocket has been replaced with the smaller Space Launch System (SLS), which is planned to launch both Orion and other necessary hardware.[28] The Exploration Flight Test-1 (EFT-1), an unmanned test flight of Orion's crew module, is planned to be launched in 2014 on a Delta IV Heavy rocket.[29] Exploration Mission-1 (EM-1) is the unmanned initial launch of SLS, which is planned for 2017.[29] Exploration Mission-2 (EM-2) is the first manned flight of Orion and SLS and is scheduled for 2019.[29] EM-2 is 10-14 day mission planned to place a crew of four into Lunar orbit. As of March 2012, the destination for EM-3 and immediate destination focus for this new program is still in-flux.[30]
1. Atmosphere Space Shuttle
"STS" redirects here. For other uses, see STS (disambiguation).
This article is about the NASA Space Transportation System vehicle. For the associated NASA STS program, see Space Shuttle program. For other shuttles and aerospace vehicles, see Spaceplane.
Discovery lifts off at the start of STS-120. | |
Function | Manned orbital launch and reentry |
---|---|
Manufacturer | United Space Alliance Thiokol/Alliant Techsystems (SRBs) Lockheed Martin/Martin Marietta (ET) Boeing/Rockwell (orbiter) |
Country of origin | United States of America |
Size | |
Height | 56.1 m (184.2 ft) |
Diameter | 8.7 m (28.5 ft) |
Mass | 2,030 t (4,470,000 lbm) |
Capacity | |
Payload to LEO | 24,400 kg (53,600 lb) |
Payload to GTO | 3,810 kg (8,390 lbm) |
Payload to Polar orbit | 12,700 kg (28,000 lb) |
Payload to Landing[1] | 14,400 kg (32,000 lb)[1] (Return Payload) |
Launch history | |
Status | Retired |
Launch sites | LC-39, Kennedy Space Center SLC-6, Vandenberg AFB (unused) |
Total launches | 135 |
Successes | 134 successful launches 133 successful re-entries |
Failures | 2 (launch failure, Challenger; re-entry failure, Columbia) |
First flight | April 12, 1981 |
Last flight | July 21, 2011 |
Notable payloads | Tracking and Data Relay Satellites Spacelab Great Observatories (including Hubble) Galileo, Magellan, Ulysses Mir Docking Module ISS components |
Boosters (Stage 0) - Solid Rocket Boosters | |
No. boosters | 2 |
Engines | 1 solid |
Thrust | 12.5 MN each, sea level liftoff (2,800,000 lbf) |
Specific impulse | 269 s |
Burn time | 124 s |
Fuel | solid |
First stage - External Tank | |
Engines | 3 SSMEs located on Orbiter |
Thrust | 5.45220 MN total, sea level liftoff (1,225,704 lbf) |
Specific impulse | 455 s |
Burn time | 480 s |
Fuel | LOX/LH2 |
Second stage - Orbiter | |
Engines | 2 OME |
Thrust | 53.4 kN combined total vacuum thrust (12,000 lbf) |
Specific impulse | 316 s |
Burn time | 1,250 s |
Fuel | MMH / N2O4 |
Major missions included launching numerous satellites, interplanetary probes, the Hubble Space Telescope (HST), conducting space science experiments, and constructing and servicing the International Space Station. Major components included the orbiters, recoverable boosters, external tanks, payloads, and supporting infrastructure. Five space-worthy orbiters were built; two were lost in mission accidents.
The Space Shuttle at launch consisted of the Orbiter Vehicle (OV), one external tank (ET), and two Solid Rocket Boosters (SRBs). It was launched vertically like a conventional rocket with thrust from the two SRBs and three main engines. During launch, the external tank provided fuel for the orbiter's main engines. The SRBs and ET were jettisoned before the orbiter reached orbit. At the conclusion of the orbiter's space mission, it fired its thrusters to drop out of orbit and re-enter the lower atmosphere. The orbiter decelerated in the atmosphere before flying like a glider but with reaction control system thrusters before landing on a long runway. Columbia, Challenger, Discovery, Atlantis, and Endeavour were the space-capable orbiters that were built
- en.wikipedia.org/wiki/Space_Shuttle
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