Originally Posted by
8CherryGarcia
. . . a do-hickey of a port above the FE. They said it was for the sextant. But the cool thing was the FE had about 5 feet of hose that he had rigged up to it, and pulled the cap off in flight and used the thing as an inflight vacuum cleaner!
It's in other older aircraft too, like the 74 Classic. Makes a good hard boiled egg cannon . . . I've heard.