Blackburn Cirrus Type Air-cooled four-cylinder in-line engine Manufacturer Blackburn Aircraft Introduced 1926 Primary users Private light aircraft

The Engine On Display

The description states "Cirrus engines always seem to have been overshadowed by the more popular DH Gipsy of similar design. They had a good reputation for reliability, and the type on display powered the Avro "Avian" used by Bert Hinkler in his record-breaking England-Australia flight.

Cirrus engines were originally manufactured by Cirrus Aero-Engines Limited, which was later bought by the Hermes Engines Company, which was itself bought by Blackburn Aircraft in 1934. There was a sequence of engines bearing their names from 1925 onward. The engine on display is one of the earliest of these.

Specifications (Cirrus Minor I)

Cubic capacity:	243 cu.in (4 L)
Maximum power:	90 HP (67 kW)
Weight:	200 lb (91 kg)

References / Links

Wikipedia - the Blackburn Cirrus Minor