The X-37B Orbital Test Vehicle (OTV) is a reusable, unmanned spaceplane developed by Boeing for the U.S. military. Often shrouded in secrecy, this spacecraft has completed multiple long-duration missions in low Earth orbit, testing cutting-edge technologies and conducting classified experiments. Here’s everything you need to know about this enigmatic vehicle.
Design and Specifications
Dimensions: 29 feet long, 9.5 feet tall, with a wingspan of nearly 15 feet. Weight: Launch weight of 11,000 pounds. Power Source: Gallium arsenide solar cells paired with lithium-ion batteries. Payload Bay: Comparable to the size of a pickup truck bed (7×4 feet). Propulsion: Uses hydrazine and nitrogen tetroxide thrusters for orbital maneuvers.
The X-37B resembles a smaller version of NASA’s retired space shuttle but is designed for unmanned operations. It launches vertically atop rockets like the Atlas V or Falcon 9 and lands autonomously on runways.