"Women's Army Corps" being the derivation of the acronym. In its March 18, 1946 issue, Aviation Week noted, "[u]nder the amusing security code designation of 'WAC Corporal' the project was initiated in 1944...." In the June 1, 1946 of Aviation Week, an article describes how the WAC Corporal "is launched from a triangular 100 ft. launching tower, and thereafter goes its own merry way," and claims that "[t]hese characteristics suggest some of the reasons for the female appellation of the 'WAC,' the 'Corporal' coming from the fact that some Army rockets are designated by familiar ranks." Specifications Overall dimensions WAC Corporal A Diameter: Total length: Tiny Tim booster Loaded weight: Propellant weight: Thrust: Duration: 0.6 s Impulse: 133,000 N·s (30,000 lbf·s) WAC Corporal sustainer Empty weight: Loaded weight: Thrust: Duration: 47 s Impulse: 298,000 N·s (67,000 lbf·s) Notes References External links Astronautix.com article Article from Directory of U.S. Military Rockets and Missiles Article from National Air and Space Museum Sounding rockets of the United States Rockets and missiles Douglas Aircraft Company