Gosport Tube
A 'Gosport Tube' was a voice tube used by flight instructors in the early days of military aviation to give instructions and directions to their students. It was invented by flying instructor Robert Raymond Smith-Barry at the School of Special Flying he opened at Gosport in 1917.
Read more about this topic: Speaking Tube
Famous quotes containing the word tube:
“The last best hope of earth, two trillion dollars in debt, is spinning out of control, and all we can do is stare at a flickering cathode-ray tube as Ollie “answers” questions on TV while the press, resolutely irrelevant as ever, asks politicians if they have committed adultery. From V-J Day 1945 to this has been, my fellow countrymen, a perfect nightmare.”
—Gore Vidal (b. 1925)