// UNMANNED SYSTEMS AND NEXT-GEN WARFARE TERM

X-37B

The X-37B is a reusable, uncrewed robotic spaceplane operated by the U.S. Space Force for orbital missions, performing various experiments and technology demonstrations. It can stay in orbit for extended periods, sometimes for over two years, before returning to Earth.

X-37B — illustration from Wikipedia
Image via Wikipedia

TECHNICAL DEFINITION

The Boeing X-37B Orbital Test Vehicle (OTV) is an autonomous, reusable robotic spaceplane operated by the U.S. Space Force for advanced technology demonstrations, orbital reconnaissance, and payload deployment/retrieval missions, characterized by its long-duration flight capabilities and re-entry/landing functionality.

BACKGROUND

The Boeing X-37, also known as the Orbital Test Vehicle (OTV), is a reusable robotic spacecraft. It is boosted into space by a launch vehicle, re-enters Earth's atmosphere, and lands as a spaceplane. The X-37 is operated by the Department of the Air Force Rapid Capabilities Office, in collaboration with the United States Space Force, for orbital spaceflight missions intended to demonstrate reusable space technologies. It is a 120-percent-scaled derivative of the earlier Boeing X-40. The X-37 began as a NASA project in 1999, before being transferred to the United States Department of Defense in 2004. Until 2019, the program was managed by Air Force Space Command.

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SYNONYMS & ALIASES

  • Orbital Test Vehicle
  • OTV
  • USSF spaceplane
  • Boeing X-37B

USAGE NOTE

The X-37B's secretive nature and long-duration missions make it a subject of significant interest and speculation in military and space communities regarding its precise capabilities and objectives.

DEVELOPERS

Organizations developing technology related to X-37B.

  • Boeing Phantom Works

    The primary contractor responsible for the design, development, and manufacturing of the X-37B Orbital Test Vehicle.

  • United States Space Force (USSF)

    The current operator of the X-37B, defining mission requirements and overseeing its operational technology development and utilization.

  • United States Air Force (USAF)

    Previously operated the X-37B and played a crucial role in its initial development, requirements definition, and early missions before transitioning to the USSF.

  • Air Force Research Laboratory (AFRL)

    Conducts research and development for advanced aerospace technologies, materials, and systems directly applicable to the capabilities and future iterations of vehicles like the X-37B.

  • Defense Advanced Research Projects Agency (DARPA)

    Has historically funded and initiated programs for advanced aerospace platforms and technologies that could feed into projects like the X-37, including reusable spacecraft and hypersonic flight.

  • National Aeronautics and Space Administration (NASA)

    The X-37 program originated at NASA, and the agency continues to conduct research in areas like hypersonic flight, atmospheric re-entry, and reusable space vehicles, which are foundational to X-37B technology.

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