| Dagger | |
|---|---|
| |
| Napier Dagger at the National Air and Space Museum | |
| Type | Piston aero-engine |
| Manufacturer | Napier & Son |
| First run | 1934 |
| Major applications | Handley Page Hereford Hawker Hector |
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.