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Steven F. Udvar-Hazy Center: Space Shuttle Enterprise (port hatchway open)
Image by Chris Devers
See a lot more pictures of this, and the Wikipedia report.
Particulars, quoting from Smithsonian National Air and Space Museum | Space Shuttle Enterprise:
Manufacturer:
Rockwell International Corporation
Nation of Origin:
United States of America
Dimensions:
Overall: 57 ft. tall x 122 ft. extended x 78 ft. wing span, 150,000 lb.
(1737.36 x 3718.57 x 2377.44cm, 68039.6kg)
Materials:
Aluminum airframe and body with some fiberglass characteristics payload bay doors are graphite epoxy composite thermal tiles are simulated (polyurethane foam) except for test samples of actual tiles and thermal blankets.
The very first Space Shuttle orbiter, "Enterprise," is a complete-scale test car employed for flights in the atmosphere and tests on the ground it is not equipped for spaceflight. Even though the airframe and flight handle components are like those of the Shuttles flown in space, this vehicle has no propulsion system and only simulated thermal tiles due to the fact these attributes had been not required for atmospheric and ground tests. "Enterprise" was rolled out at Rockwell International’s assembly facility in Palmdale, California, in 1976. In 1977, it entered service for a nine-month-extended method-and-landing test flight program. Thereafter it was used for vibration tests and fit checks at NASA centers, and it also appeared in the 1983 Paris Air Show and the 1984 World’s Fair in New Orleans. In 1985, NASA transferred "Enterprise" to the Smithsonian Institution’s National Air and Space Museum.
Transferred from National Aeronautics and Space Administration
• • •
Quoting from Wikipedia | Space Shuttle Enterprise:
The Space Shuttle Enterprise (NASA Orbiter Vehicle Designation: OV-101) was the 1st Space Shuttle orbiter. It was built for NASA as portion of the Space Shuttle plan to perform test flights in the atmosphere. It was constructed without having engines or a functional heat shield, and was therefore not capable of spaceflight.
Initially, Enterprise had been intended to be refitted for orbital flight, which would have made it the second space shuttle to fly following Columbia. Nonetheless, in the course of the building of Columbia, details of the final style changed, especially with regard to the weight of the fuselage and wings. Refitting Enterprise for spaceflight would have involved dismantling the orbiter and returning the sections to subcontractors across the country. As this was an expensive proposition, it was determined to be significantly less costly to develop Challenger about a body frame (STA-099) that had been produced as a test post. Similarly, Enterprise was regarded as for refit to replace Challenger after the latter was destroyed, but Endeavour was built from structural spares alternatively.
Service
Construction started on the 1st orbiter on June four, 1974. Designated OV-101, it was initially planned to be named Constitution and unveiled on Constitution Day, September 17, 1976. A create-in campaign by Trekkies to President Gerald Ford asked that the orbiter be named soon after the Starship Enterprise, featured on the tv show Star Trek. Although Ford did not mention the campaign, the president—who throughout World War II had served on the aircraft carrier USS Monterey (CVL-26) that served with USS Enterprise (CV-six)—said that he was "partial to the name" and overrode NASA officials.
The style of OV-101 was not the identical as that planned for OV-102, the initial flight model the tail was constructed differently, and it did not have the interfaces to mount OMS pods. A big number of subsystems—ranging from major engines to radar equipment—were not installed on this vehicle, but the capacity to add them in the future was retained. Instead of a thermal protection technique, its surface was primarily fiberglass.
In mid-1976, the orbiter was used for ground vibration tests, permitting engineers to evaluate data from an actual flight automobile with theoretical models.
On September 17, 1976, Enterprise was rolled out of Rockwell’s plant at Palmdale, California. In recognition of its fictional namesake, Star Trek creator Gene Roddenberry and most of the principal cast of the original series of Star Trek were on hand at the dedication ceremony.
Approach and landing tests (ALT)
Major write-up: Strategy and Landing Tests
On January 31, 1977, it was taken by road to Dryden Flight Analysis Center at Edwards Air Force Base, to commence operational testing.
Whilst at NASA Dryden, Enterprise was employed by NASA for a selection of ground and flight tests intended to validate elements of the shuttle plan. The initial nine-month testing period was referred to by the acronym ALT, for "Approach and Landing Test". These tests included a maiden "flight" on February 18, 1977 atop a Boeing 747 Shuttle Carrier Aircraft (SCA) to measure structural loads and ground handling and braking traits of the mated method. Ground tests of all orbiter subsystems had been carried out to confirm functionality prior to atmospheric flight.
The mated Enterprise/SCA mixture was then subjected to five test flights with Enterprise unmanned and unactivated. The objective of these test flights was to measure the flight traits of the mated mixture. These tests were followed with three test flights with Enterprise manned to test the shuttle flight handle systems.
Enterprise underwent five free flights exactly where the craft separated from the SCA and was landed beneath astronaut manage. These tests verified the flight traits of the orbiter design and style and have been carried out below numerous aerodynamic and weight configurations. On the fifth and final glider flight, pilot-induced oscillation issues had been revealed, which had to be addressed before the very first orbital launch occurred.
On August 12, 1977, the space shuttle Enterprise flew on its personal for the first time.
Preparation for STS-1
Following the ALT program, Enterprise was ferried amongst many NASA facilities to configure the craft for vibration testing. In June 1979, it was mated with an external tank and solid rocket boosters (identified as a boilerplate configuration) and tested in a launch configuration at Kennedy Space Center Launch Pad 39A.
Retirement
With the completion of essential testing, Enterprise was partially disassembled to permit particular elements to be reused in other shuttles, then underwent an international tour visiting France, Germany, Italy, the United Kingdom, Canada, and the U.S. states of California, Alabama, and Louisiana (during the 1984 Louisiana World Exposition). It was also utilised to match-verify the in no way-utilised shuttle launch pad at Vandenberg AFB, California. Finally, on November 18, 1985, Enterprise was ferried to Washington, D.C., where it became property of the Smithsonian Institution.
Post-Challenger
Right after the Challenger disaster, NASA considered using Enterprise as a replacement. However refitting the shuttle with all of the required gear necessary for it to be utilized in space was deemed, but as an alternative it was decided to use spares constructed at the exact same time as Discovery and Atlantis to build Endeavour.
Post-Columbia
In 2003, soon after the breakup of Columbia during re-entry, the Columbia Accident Investigation Board carried out tests at Southwest Analysis Institute, which employed an air gun to shoot foam blocks of related size, mass and speed to that which struck Columbia at a test structure which mechanically replicated the orbiter wing top edge. They removed a fiberglass panel from Enterprise’s wing to carry out analysis of the material and attached it to the test structure, then shot a foam block at it. Although the panel was not broken as a result of the test, the effect was sufficient to permanently deform a seal. As the reinforced carbon-carbon (RCC) panel on Columbia was two.five occasions weaker, this recommended that the RCC leading edge would have been shattered. Further tests on the fiberglass had been canceled in order not to risk damaging the test apparatus, and a panel from Discovery was tested to determine the effects of the foam on a similarly-aged RCC major edge. On July 7, 2003, a foam impact test produced a hole 41 cm by 42.five cm (16.1 inches by 16.7 inches) in the protective RCC panel. The tests clearly demonstrated that a foam influence of the type Columbia sustained could seriously breach the protective RCC panels on the wing top edge.
The board determined that the probable cause of the accident was that the foam impact brought on a breach of a reinforced carbon-carbon panel along the major edge of Columbia’s left wing, allowing hot gases generated for the duration of re-entry to enter the wing and lead to structural collapse. This brought on Columbia to spin out of control, breaking up with the loss of the whole crew.
Museum exhibit
Enterprise was stored at the Smithsonian’s hangar at Washington Dulles International Airport ahead of it was restored and moved to the newly constructed Smithsonian’s National Air and Space Museum‘s Steven F. Udvar-Hazy Center at Dulles International Airport, exactly where it has been the centerpiece of the space collection. On April 12, 2011, NASA announced that Space Shuttle Discovery, the most traveled orbiter in the fleet, will be added to the collection once the Shuttle fleet is retired. When that occurs, Enterprise will be moved to the Intrepid Sea-Air-Space Museum in New York City, to a newly constructed hangar adjacent to the museum. In preparation for the anticipated relocation, engineers evaluated the vehicle in early 2010 and determined that it was safe to fly on the Shuttle Carrier Aircraft as soon as once again.