Aircraft engine Blackburn Cirrus Bombardier

The Bombardier engine was designed by the Cirrus, the engine division of the British company Blackburn, starting from the end of the Second World War. The engine was produced in 300 units until the mid-1950s, mainly to equip the reconnaissance aeroplanes Auster AOP.9. The Cirrus Bombardier was one of the first British engines homologated for mass production to be equipped with an port-injection system, made by Skinner Union (SU). This allowed an increase in engine efficiency (lower specific consumption and about +25 hp) than the Cirrus Major III model with the same displacement. Despite it was designed for small airplanes, the engine has fine features, with a large use of light alloys, including the Elektron (a Magnesium alloy) for the crankcase and other structural parts.