John C. Stennis Space Center
Encyclopedia
The John C. Stennis Space Center (SSC), located in Hancock County, Mississippi
Hancock County, Mississippi
-Demographics:As of the census of 2000, there were 42,967 people, 16,897 households, and 11,827 families residing in the county. The population density was 90 people per square mile . There were 21,072 housing units at an average density of 44 per square mile...

, at the Mississippi
Mississippi
Mississippi is a U.S. state located in the Southern United States. Jackson is the state capital and largest city. The name of the state derives from the Mississippi River, which flows along its western boundary, whose name comes from the Ojibwe word misi-ziibi...

-Louisiana
Louisiana
Louisiana is a state located in the southern region of the United States of America. Its capital is Baton Rouge and largest city is New Orleans. Louisiana is the only state in the U.S. with political subdivisions termed parishes, which are local governments equivalent to counties...

 border, is NASA
NASA
The National Aeronautics and Space Administration is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research...

's largest rocket engine test facility
Rocket engine test facility
A rocket engine test facility is a location where rocket engines may be tested on the ground, under controlled conditions. A ground test program is generally required before the engine is certified for flight...

.

History

The initial requirements for NASA's proposed rocket testing facility required the site to be located between the rockets' manufacturing facility at Michoud Assembly Facility
Michoud Assembly Facility
The Michoud Assembly Facility is an 832-acre site owned by NASA and located in New Orleans East, a large district within the city of New Orleans, Louisiana, United States. Organizationally, it is part of NASA's Marshall Space Flight Center...

 in eastern New Orleans, Louisiana
New Orleans, Louisiana
New Orleans is a major United States port and the largest city and metropolitan area in the state of Louisiana. The New Orleans metropolitan area has a population of 1,235,650 as of 2009, the 46th largest in the USA. The New Orleans – Metairie – Bogalusa combined statistical area has a population...

 and the launch facility at Cape Canaveral
Cape Canaveral
Cape Canaveral, from the Spanish Cabo Cañaveral, is a headland in Brevard County, Florida, United States, near the center of the state's Atlantic coast. Known as Cape Kennedy from 1963 to 1973, it lies east of Merritt Island, separated from it by the Banana River.It is part of a region known as the...

 in Florida. Also, the site required barge access as the rocket motors to be tested for Apollo were too large for overland transport.

The selected area was thinly populated and met all other requirements; however before construction began, five small communities (Gainesville, Logtown, Napoleon, Santa Rosa and Westonia, plus the northern portion of Pearlington
Pearlington, Mississippi
Pearlington is a census-designated place in Hancock County, Mississippi, United States, on U.S. Route 90, along the Pearl River, at the Louisiana stateline. It is part of the Gulfport–Biloxi, Mississippi Metropolitan Statistical Area. The population was 1,684 at the 2000 census. On August...

) with 700 families had to be completely relocated off the facility. Remnants of the communities, including city streets and a one-room school house, still exist within the facility.

The 13500 acres (55 km²) site was selected on October 25, 1961 on the Mississippi Test Facility or Pearl River Site. On December 18, 1961 NASA officially designated the facility as NASA Mississippi Test Operations. The test area (officially known as the Fee Area) is surrounded by a 125000 acres (506 km²) acoustical buffer zone
Buffer zone
A buffer zone is generally a zonal area that lies between two or more other areas , but depending on the type of buffer zone, the reason for it may be to segregate regions or to conjoin them....

. The facility's large concrete and metal test stands
Rocket engine test facility
A rocket engine test facility is a location where rocket engines may be tested on the ground, under controlled conditions. A ground test program is generally required before the engine is certified for flight...

 were originally used to test-fire the first and second stages of the Saturn V
Saturn V
The Saturn V was an American human-rated expendable rocket used by NASA's Apollo and Skylab programs from 1967 until 1973. A multistage liquid-fueled launch vehicle, NASA launched 13 Saturn Vs from the Kennedy Space Center, Florida with no loss of crew or payload...

 rockets. All Space Shuttle Main Engine
Space Shuttle main engine
The RS-25, otherwise known as the Space Shuttle Main Engine , is a reusable liquid-fuel rocket engine built by Pratt & Whitney Rocketdyne for the Space Shuttle, running on liquid hydrogen and oxygen. Each Space Shuttle was propelled by three SSMEs mated to one powerhead...

s were flight-certified at Stennis. The facility was renamed again to Mississippi Test Facility on July 1, 1965, became a part of the Marshall Space Flight Center
Marshall Space Flight Center
The George C. Marshall Space Flight Center is the U.S. government's civilian rocketry and spacecraft propulsion research center. The largest center of NASA, MSFC's first mission was developing the Saturn launch vehicles for the Apollo moon program...

 on June 14, 1974 and renamed National Space Technology Laboratories a name that continued until May 20, 1988 when it was renamed for Mississippi senator and space program supporter John C. Stennis
John C. Stennis
John Cornelius Stennis was a U.S. Senator from the state of Mississippi. He was a Democrat who served in the Senate for over 41 years, becoming its most senior member by his retirement.- Early life :...

.

With the end of the Apollo program, use of the base decreased, with economic impact to the surrounding communities. Over the years other government organizations have moved to the facility, providing a major economic benefit to the communities.

In the 1990s, a new test complex named "E" was constructed to test a variety of new engine concepts. A series of tests conducted there eventually led to the commercialization of hybrid rocket
Hybrid rocket
A hybrid rocket is a rocket with a rocket motor which uses propellants in two different states of matter - one solid and the other either gas or liquid. The Hybrid rocket concept can be traced back at least 75 years....

 motors, one of which was used to power the first privately funded spaceship, Scaled Composites SpaceShipOne.

Two 250,000 gallon water tanks at the facility, used to test equipment for the Navy, were used to film the underwater sequences in the film Double Jeopardy
Double Jeopardy (film)
Double Jeopardy is a 1999 thriller film directed by Bruce Beresford and starring Tommy Lee Jones and Ashley Judd. The film is about a woman who is framed for the murder of her husband.-Plot:...

.

The facility was damaged in late August 2005 by Hurricane Katrina
Hurricane Katrina
Hurricane Katrina of the 2005 Atlantic hurricane season was a powerful Atlantic hurricane. It is the costliest natural disaster, as well as one of the five deadliest hurricanes, in the history of the United States. Among recorded Atlantic hurricanes, it was the sixth strongest overall...

. In 2007 Rolls-Royce plc
Rolls-Royce plc
Rolls-Royce Group plc is a global power systems company headquartered in the City of Westminster, London, United Kingdom. It is the world’s second-largest maker of aircraft engines , and also has major businesses in the marine propulsion and energy sectors. Through its defence-related activities...

 opened an outdoor aero engine test facility at John C. Stennis. The test stand is built on the old H1 test bed, Rolls-Royce relocated their engine testing facility from Hucknall
Hucknall
Hucknall, formerly known as Hucknall Torkard, is a town in Greater Nottingham, Nottinghamshire, England, in the district of Ashfield. The town was historically a centre for framework knitting and then for mining but is now a focus for other industries as well providing housing for workers in...

 near its main Derby
Derby
Derby , is a city and unitary authority in the East Midlands region of England. It lies upon the banks of the River Derwent and is located in the south of the ceremonial county of Derbyshire. In the 2001 census, the population of the city was 233,700, whilst that of the Derby Urban Area was 229,407...

 site in the UK due to noise pollution issues.

Test stands

The Engineering & Science Directorate (ESD) at SSC operates and maintains SSC's rocket test stands.

A-1
The A-1 test stand was originally designed to test the Apollo Saturn V Second Stage (S-II). It supports a maximum dynamic load of 1.7 M lbf.


A-2
The A-2 test stand is used for Space Shuttle Main Engine
Space Shuttle main engine
The RS-25, otherwise known as the Space Shuttle Main Engine , is a reusable liquid-fuel rocket engine built by Pratt & Whitney Rocketdyne for the Space Shuttle, running on liquid hydrogen and oxygen. Each Space Shuttle was propelled by three SSMEs mated to one powerhead...

 testing. It supports a maximum dynamic load of 1.1 M lbf.


A-3
NASA has begun construction of the new A-3 test stand at SSC. The A-3 stand will be used for testing J-2X engines under vacuum conditions simulating high altitude operation. A-3 will also be operable as a sea-level test facility.


B-1/B-2
The B-1/B-2 test stand is a dual-position stand supporting a maximum dynamic load of 11M lbf. It was originally built to simultaneously test the five F-1 engines of a complete Saturn-V S1-C first stage. During the shuttle era it was modified to test the Space Shuttle Main Engine
Space Shuttle main engine
The RS-25, otherwise known as the Space Shuttle Main Engine , is a reusable liquid-fuel rocket engine built by Pratt & Whitney Rocketdyne for the Space Shuttle, running on liquid hydrogen and oxygen. Each Space Shuttle was propelled by three SSMEs mated to one powerhead...

(SSME). It is currently used for Delta IV rocket
Delta IV rocket
Delta IV is an active expendable launch system in the Delta rocket family. Delta IV uses rockets designed by Boeing's Integrated Defense Systems division and built in the United Launch Alliance facility in Decatur, Alabama. Final assembly is completed at the launch site by ULA...

 engine testing.


E-Complex
The E-Complex supports testing of small engine and single/multiple components.

Facilities

In 2005, the Center was home to over 30 government agencies and private companies. By far the largest of these were elements of the United States Navy
United States Navy
The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

 with some 3,500 personnel, which was far larger than the NASA civil servant contingent. Some of the prominent resident agencies include:
  • The National Oceanic and Atmospheric Administration
    National Oceanic and Atmospheric Administration
    The National Oceanic and Atmospheric Administration , pronounced , like "noah", is a scientific agency within the United States Department of Commerce focused on the conditions of the oceans and the atmosphere...

    's National Data Buoy Center
    National Data Buoy Center
    The National Data Buoy Center is a part of the National Oceanic and Atmospheric Administration's National Weather Service...

  • A branch of the Naval Research Laboratory
  • The Lockheed Martin
    Lockheed Martin
    Lockheed Martin is an American global aerospace, defense, security, and advanced technology company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in Bethesda, Maryland, in the Washington Metropolitan Area....

     Mississippi Space and Technology Center
  • The Naval Meteorology and Oceanography Command
    Commander, Naval Meteorology and Oceanography Command
    The Naval Meteorology and Oceanography Command serves as the operational arm of the Naval Oceanography Program. Headquartered at the Stennis Space Center in Mississippi, COMNAVMETOCCOM is a third echelon command reporting to United States Fleet Forces Command...

  • The Naval Oceanographic Office
    Naval Oceanographic Office
    The Naval Oceanographic Office , located at John C. Stennis Space Center in south Mississippi, comprises approximately 1,000 civilian, military and contract personnel responsible for providing oceanographic products and services to all elements within the Department of Defense.Valued by maritime...

  • Navy Special Boat Team 22 and NAVSCIATTS
    NAVSCIATTS
    The Naval Small Craft Instruction and Technical Training School is one of the three original Panama Canal Area Military Schools. The school house now is located at John C. Stennis Space Center in the state of Mississippi.- History :...

     (Naval Small Craft Instruction and Technical Training School).
  • The University of Southern Mississippi
    The University of Southern Mississippi
    The University of Southern Mississippi, informally known as Southern Miss, is a large public research university located in Hattiesburg, Mississippi, United States. It is situated north of Gulfport, Mississippi and northeast of New Orleans, Louisiana...

    's High Performance Visualization Center
  • Rolls-Royce
    Rolls-Royce plc
    Rolls-Royce Group plc is a global power systems company headquartered in the City of Westminster, London, United Kingdom. It is the world’s second-largest maker of aircraft engines , and also has major businesses in the marine propulsion and energy sectors. Through its defence-related activities...

     Outdoor Engine Testing Centre
  • The US Geological Survey Hydrologic Instrumentation Facility
  • Mississippi Army Ammunition Plant
    Mississippi Army Ammunition Plant
    The Mississippi Army Ammunition Plant was a government-owned, contractor-operated facility in Hancock County, Mississippi that was dedicated on March 31, 1983. Construction in the northern part of the John C. Stennis Space Center facility began on January 8, 1978. The plant was deactivated on...


StenniSphere

The visitor center for the Stennis Space Center is known as StenniSphere. Exhibits focus on the activities of NASA, space, space exploration, science, geography, weather and more. Visitors 18 and over must present a photo ID.

External links


The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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