I learned this song from my sixth grade teacher Mr. Richards in 1951.
This was what he taught us (of course with the hands making goggles)
I never knew where this song came from before.

Up in the air junior birdemen
Up in the air upside down
Up in the air junior birdmen
With your wheels up off the ground
When you hear those motors roaring
And you see those wings of tin
You will know that the junior birdmen
Have sent their boxtops in