The Napier Dagger was a twenty-four-cylinder, air-cooled engine in an H-block layout, designed by Frank Halford and built by Napier before the Second World War as a development of the Rapier. Two flat-twelve engines lay side by side driving side-by-side crankshafts, giving smooth running, and it turned at up to 4,000 revolutions a minute with conventional poppet valves, unlike its successor the Sabre. Variants ranged from 650 to 1,000 horsepower. Cooling, maintenance, manufacturing and weight problems were never fully solved. It powered the Hawker Hector, the Handley Page Hereford and the Martin-Baker MB 2, and a preserved example is in the Royal Air Force Museum London.
Facts
Classification
Fuel or Cycle Configuration Cylinder Count Connections
Invented By
Source Napier Dagger (Wikipedia)
Of Make
Source Napier Dagger (Wikipedia)
In the Other Atlases
Manufactured By
Also in Business Atlas: the manufacturer of this subject.
Source Napier Dagger (Wikipedia)Lead, makerQuote, Lead, maker
built by Napier
Sources
1. Napier Dagger (Wikipedia)
Lead, configuration
The Napier Dagger was a 24-cylinder H-pattern (or H-Block) air-cooled engine designed by Frank Halford
Lead, cylinders
The Napier Dagger was a 24-cylinder H-pattern (or H-Block) air-cooled engine designed by Frank Halford
Specifications, fuel type
Fuel type: 87 Octane petrol
Lead, maker
built by Napier
In Group: Piston Aero Engines, Lead, kind of engine
The Napier Dagger was a 24-cylinder H-pattern (or H-Block) air-cooled engine
Invented By: Frank Halford, Lead, designer
The Napier Dagger was a 24-cylinder H-pattern (or H-Block) air-cooled engine designed by Frank Halford
Part Of: Hawker Hector, Design and development, Hector
The Dagger powered the Hawker Hector army co-operation aircraft
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