Boeing 720 (N7381)

720-060B Hughes Airborne Infrared Measurement System (AIRMS) Testbed, Embraceable Annie, N7381 at the Mojave Airport on July 27, 1997. Its construction number is 18977. It first flew on September 1, 1965. It was delivered to Ethiopian Airlines as ET-ABP on September 20, 1965. Ethiopian Airlines leased it to Middle East Airlines from January 1, 1966 to March 31, 1968. On December 7, 1972, it was seized by hijackers at Addis Ababa. A grenade detonated on board during the hijacking. AAR Allen Aircraft registered it as N440DS on January 19, 1988 and stored it at Marana, Arizona.

Hughes Aircraft Corporation acquired it on March 1, 1989 and registered it as N7381 in February 1990. It was flown to the Lockheed facility in Greenville, South carolina where an 8-foot by 6-foot port was installed on the left side of the forward fuselage. Hughes installed the AIRMS at the Van Nuys Airport in 1993. The 720 received the name Embraceable Annie. It was transferred to the Air Force in October 1993. Data acquisition flights were conducted from the Mojave Airport and Edwards Air Force Base. It was returned to Hughes Aircraft on January 17, 1997. At the conclusion of the test program, it was retired to the Mojave Airport.