Blackburn Cirrus Major

Cirrus Major
Right side view of a Cirrus Major III installed in an Auster J/5G
TypeAir-cooled 4-cylinder inline piston engine
National originUnited Kingdom
ManufacturerBlackburn Aircraft
First run1936
Number builtc. 700

The Blackburn Cirrus Major is a British, inline-four aircraft engine which was developed in the late 1930s, but continued development and production into the 1940s and post war.