THE CHALLENGE TO FUEL SYSTEM ENGINEERS CONTINUES. - Aircraft designed for sustained supersonic flight demand new equipment and new techniques. Complete centre of gravity control and fuel temperature correction to meet operational and economic requirements are essential. Armstrong Whitworth Equipment has a highly-specialised group of technicians with vast experience of fuel system engineering on many types of aircraft subsonic and supersonic. Their skill and knowledge are available whenever a new project takes shape on the drawing board A:W.E. Fuel System Equipment is installed on English Electric Lightning, Fairey F.D2., S.N.E.C.M.A. Coleopter, Short Britannic, Fairey Gannet, D.H. 121, Folland Gnat and Gloster Javelin.