FSX Saunders - Roe SR-53 Experimental Plane v2. The Saunders-Roe SR53 was an experimental fighter that made its maiden flight on May 16th 1957. It was propelled by a combination of a jet engine and a rocket motor. The prototype plane can be seen at the RAF Museum Cosford. Michael Pook has given the model a wonderful panel and added the necessary gauges and effects. Thank you very much for that! In his upload PANEL_UPDATE.ZIP I observed a minor texturing issue that hopefully will be solved with my new version. By Hubert Mueller.