Napier Dagger

Dagger
Napier Dagger at the National Air and Space Museum
TypePiston aero-engine
ManufacturerNapier & Son
First run1934
Major applications

The Napier Dagger was a 24-cylinder H-pattern (or H-Block) air-cooled engine designed by Frank Halford and built by Napier before World War II. It was a development of the earlier Napier Rapier.

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