During which was did Beatrice Shilling invent a simple technical device made to counter engine cut-out in early Spitfire and Hurricane fighter aeroplanes?
Miss Shilling's orifice Miss Shilling's orifice was a very simple technical device made to counter engine cut-out in early Spitfire and Hurricane fighter aeroplanes during the Battle of Britain. While it was officially called the R.A.E. restrictor, it was normally referred to under various names, such as Miss Tilly's diaphragm or the Tilly orifice in reference to its inventor, Beatrice "Tilly" Shilling.
H2S (radar) H2S was the first airborne, ground scanning radar system. It was developed for the Royal Air Force's Bomber Command during World War II to identify targets on the ground for night and all-weather bombing, allowing attacks outside the range of the various radio navigation aids like Gee or Oboe, which were limited to about 500 km . It was also widely used as a general navigation system, allowing landmarks to be identified at long range.