08 December 2014


The invention:

 A jet engine with a turbine-driven compressor that
uses its hot-gas exhaust to develop thrust.

 The people behind the invention:

Henry Harley Arnold (1886-1950), a chief of staff of the U.S.
Army Air Corps
Gerry Sayer, a chief test pilot for Gloster Aircraft Limited
Hans Pabst von Ohain (1911- ), a German engineer
Sir Frank Whittle (1907-1996), an English Royal Air Force
officer and engineer