Lockheed Martin Space Systems Lockheed Martin Space Systems Lockheed Martin Space is one of the four major business divisions of Lockheed Martin. It has its headquarters in Denver, Colorado with additional sites in Sunnyvale, California; Santa Cruz, California; Huntsville, Alabama; and elsewhere in the US and UK. The division currently employs about 16,000 people, and its most notable products are commercial and military satellites, space probes, missile defense systems, NASA's Orion Multi-Purpose Crew Vehicle, and the Space Shuttle External Tank. The Lockheed Missile Systems Division was established in Van Nuys, Ca. in late 1953 to consolidate work on the Lockheed X-17 & X-7. The
Lockheed Martin A2100 later increased to 2.55 m. The liquid apogee engine uses hydrazine fuel from the central tank along with nitrogen tetroxide oxidizer from two flanking tanks of 0.54 m diameter and up to 1.65 m long. Orbit maintenance is performed by the small hydrazine motors and ion thrusters. The maximum propellant supply (with the largest tanks at 95% fill factor) are 1368 kg of hydrazine fuel and 627 kg of nitrogen tetroxide oxidizer. According to Moog-ISP, the A2100 platform uses its LEROS bipropellant Liquid Apogee Engine. Lockheed Martin A2100 The A2100 is a communications satellite spacecraft model made by Lockheed Martin