Started during the second world war, the Metrovick axial flow turbojet matured
into several iterations. In particular, the MV F.2/4 Beryl initially developed 3,250 lbf as test flown before being installed in the
Saunders-Roe SR.A/1 flying boat fighter at which time it was rated at 3500.lbf of thrust.
Further improvements allowed the 3rd prototype to reach 3850 lbf before settling
at 4000 Lbf.
Development of the SR.A/1 ended in 1947, ending the development of the Beryl
engine, and Metrovick sold their jet engine activities to Armstrong Siddeley the same year. Eventually, the design lead to the AS
Sapphire. Specifications :