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| title | chunk | source | category | tags | date_saved | instance |
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| Boilerplate (spaceflight) | 3/3 | https://en.wikipedia.org/wiki/Boilerplate_(spaceflight) | reference | science, encyclopedia | 2026-05-05T13:06:07.682064+00:00 | kb-cron |
As part of the Space Shuttle program, a number of boilerplate vehicles were constructed using various materials to undertake key tests of procedures, infrastructure and other elements that would take place during a Shuttle mission.
=== Facilities Test Article === In 1977, the Marshall Space Flight Center (MSFC) constructed a simple steel-and-wood orbiter mockup to be used in fit check activities for various elements of the infrastructure needed to support the Space Shuttle, including roadway clearances and crane capabilities, as well as for testing in various buildings and structures used as part of the program, both at the MSFC and at the Kennedy Space Center. The mockup was designed to be the approximate size, shape and weight of an actual orbiter, and allowed these initial tests to be undertaken without using the far more expensive and delicate prototype orbiter, Enterprise. Following its use as a test article, the mockup was stored until 1983, when it was refurbished and modified to more closely resemble an actual orbiter and named Pathfinder before being displayed in Tokyo. Following its display in Tokyo, it was returned to the U.S. and has been on display since May 1988 at the U.S. Space & Rocket Center in Huntsville, Alabama.
=== Structural Test Article === The Structural Test Article (STA-099) was built as a test vehicle intended for use in initial vibration testing to simulate entire flights. STA-099 was built as essentially a complete orbiter airframe, but with a mockup of the crew compartment installed, and the thermal insulation only fitted to the forward fuselage. The simulation testing of the STA was undertaken over the course of eleven months following its rollout in February 1978; at the time, it was intended that the prototype orbiter Enterprise would be converted into a full flight ready model, but the cost of undertaking this work, along with a number of design changes that had taken place between Enterprise being rolled out, and the final construction of the first operational orbiter, Columbia, meant that it was decided instead to upgrade the STA into a flight model. This began following the end of the STA testing in January 1979, with the completed orbiter, named as Challenger, rolled out in June 1982.
=== Prototype ===
==== Approach and landing tests ====
In January 1977, the prototype orbiter Enterprise was delivered to Edwards Air Force Base in California for the beginning of its overall test program, which would encompass flight tests, fit-check and procedures testing of the orbiter, its systems, the facilities and procedures required to launch, fly and land the spacecraft safely. During 1977, Enterprise was used in what was called the Approach and Landing Tests program of testing, which encompassed mating the orbiter to the Shuttle Carrier Aircraft, a modified Boeing 747 to test the taxiing and flight characteristics of the Orbiter / SCA combination. This included flights of the combination in which Enterprise itself was powered up and crewed, to test crew procedures systems in flight, and finally a set of five so-called "free-flights", with Enterprise jettisoned from the SCA at altitude to land on its own, testing the orbiter's own flying and handling characteristics.
==== Vibration and fit-check tests ==== In March 1978, following its use in flight tests during the ALT program, Enterprise was taken to the MSFC in Huntsville, Alabama for use in the Mated Vertical Ground Vibration Test. This would see Enterprise mated to an empty External Tank and dummy Solid Rocket Boosters, creating a boilerplate version of the complete Space Shuttle stack for the first time. Inside the Dynamic Structural Test Facility at the MSFC, the stack was subjected to a series of vibration tests simulating the various stages that it would be subjected to during launch. Following its use at Huntsville, Enterprise was then taken to the Kennedy Space Center in Florida, where she was again used in full boilerplate configuration to this time test the procedures of assembling and transporting the stack from the Vehicle Assembly Building to Launch Complex 39, as well as procedures required upon its arrival at the launch pad. In 1985, Enterprise was used again for this purpose, this time with the boilerplate configuration used to test the Air Force shuttle facilities at Vandenberg Air Force Base, including a full mating on the SLC-6 launch pad.
== Orion boilerplate ==
=== Development === The construction of the first Orion boilerplate, was a basic mockup prototype to test the assembling sequences and launch procedures at NASA's Langley Research Center while Lockheed aerospace engineers assemble the first rocket motors for the spacecraft's escape tower. The first boilerplate went to Dryden Flight Research Center at Edwards, California, for integration of Lockheed's avionics and NASA's developmental flight instrumentation prior to shipment to New Mexico's White Sands Missile Range for the first Orion pad abort test (PA-1) in 2009. On November 20, 2008 a complete test of the abort rockets took place in Utah. PA-1 is the first of the six test events in Orion Abort Flight Test subproject. Lockheed Martin Corp. was awarded the contract to build Orion on August 31, 2006. Other boilerplates would be used to test thermal, electromagnetic, audio, mechanical vibration conditions and research studies. These tests for the Orion spacecraft would be done at Plum Brook Station in the agency's Ohio-based Glenn Research Center.
=== Photos ===
== Commercial spacecraft boilerplates ==
In the 2010s, several commercially designed space capsules used boilerplate units on the initial launches of new launch vehicles.
The Dragon Spacecraft Qualification Unit was a boilerplate unit launched to orbit on the maiden flight of the SpaceX Falcon 9 rocket, on June 4, 2010. It was built to the outer mold line (OML) and mass distribution of the Dragon spacecraft. The Cygnus Mass Simulator was a boilerplate capsule launched to orbit on the maiden flight of the Orbital Sciences Corporation Antares rocket on April 21, 2013. It was built to outer mold line and mass distribution of the Cygnus spacecraft.
== See also == Project Mercury Project Gemini Project Apollo DemoSat Battleship (rocketry) Rendezvous Docking Simulator Space Shuttle Pathfinder Orion Abort Test Booster
== Notes ==
== References == MSNBC: Orion Boilerplate Story(updated: 10:11 a.m. MT, Wed., March. 21, 2007) BusinessTech: Orion-Ares Story(posted: 6 September 2006 10:41 am ET) NASA Apollo History Archives Smithsonian NASM: List of Apollo Boilerplates, missions, and launch vehicles Archived 2011-08-05 at the Wayback Machine
== External links == AAIA: Orion Boilerplate NASA Spaceflight: MLAS – the alternative Orion Launch Abort System gains momentum (Orion boilerplate being developed) HobbySpace: BP-6 now in California List of Mercury Boilerplates Orion Boilerplate