During the early days of the Viet Nam War, aircraaft control, and threat warnigs were broadcast from highly tarted out EC-121's, Lockheed Super Constellations. Filled with millions and millions of dollars of radar and electronic gear allowing them to see most of the North Vietnamese fighter aircraft flying down in the dirt, to escape detection, and then zooming up to the altitude of the inbound fighter bombers from bases in South Viet Nam, Thailand, and carriers out in the South China Sea. These piston engined and propeller driven relics of WWII and Korea flew in great circles out over the South China Sea, day in and day out, managing fighter forces and warning them of threats from SAMs and Migs attacking them from behind and below. Needless to say, this duty never endeared itself to the men actually doing these body numbing flights, day in and day out, which may have been one reason they sang this song to a familiar tune.

Expicalifragilistic Super Constellation,
If you fly it long enough it'll give you constipation.
McNamara thought it up in a fit of inspiration.
Expicalifragilistic Super Constellation.

Dave