After the 1999 cancellation of the RQ-3 Darkstar, Lockheed Martin decided to build a technology demonstrator for a potential family of flying wing UAVs that could be used for combat and non-combat roles.

The resulting X-44A (although apparently unrelated to the previously developed X-44 MANTA) was built in 1999 and first flew in 2001,[1] representing an interim design between the Darkstar and P-175 Polecat.

The test program also improved Lockheed Martin’s unmanned command and control system.

It also supported other test programs, including a deck-handling demonstration for U.S. Navy carriers.

[1] Data from National Museum of the United States Air Force[1]General characteristics Performance