Boulton Paul Defiant

The Boulton Paul Defiant is a British interceptor aircraft that served with the Royal Air Force (RAF) during World War II. The Defiant was designed and built by Boulton Paul Aircraft as a "turret fighter" to meet the RAF requirement for day and night fighters that could concentrate their firepower on enemy bombers which were not expected to have fighter escorts due to the distance from Germany to the United Kingdom. The Defiant had all its armament in a dorsal turret offering the ability to fire in most directions. The same principle was used in the Royal Navy's Blackburn Roc which was also built by Boulton Paul.

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Wikimedia, Wikidata
Defiant
1072 produced, 
fighter monoplane with 1 engine, two-seat fighter, Boulton Paul Aircraft, Royal Air Force, 

Albatros D.II, AS, Defiant I, fighter monoplane with 1 engine, two-seat fighter, 

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Location: KML, Cluster Map, Maps,

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  Defiant I ⓘ
  1940 fighter aircraft model by Boulton Paul

Frameless

Air Ministry Second World War Official Collection CH886

An air gunner of No. 264 Squadron RAF about to enter the gun turret of his Boulton Paul Defiant Mk I at Kirton-in-Lindsey, Lincolnshire, August 1940. CH874

Michael Young (cropped from 264 Squadron CH197)

Fitters working on the Rolls-Royce Merlin engine of a Boulton Paul Defiant of No. 125 Squadron RAF at Fairwood Common, Wales, January 1942. CH4607

Eric Barwell (cropped from 264 Squadron CH197)

Boulton Paul Defiant ExCC

Air Ministry Second World War Official Collection CH876

264 Squadron CH197

Boulton Paul Defiants of No. 264 Squadron RAF being prepared for take-off at Kirton-in-Lindsey, Lincolnshire, August 1940. CH880

RAF Fighter Command 1940 HU104496

Type	Subtype	Date	Description	Notes	Source
class	aircraft		Defiant I	Boulton Paul Defiant	Wikidata
commons	image		Air Ministry Second World War Official Collection CH886		Commons
commons	image		An air gunner of No. 264 Squadron RAF about to enter the gun turret of his Boulton Paul Defiant Mk I at Kirton-in-Lindsey, Lincolnshire, August 1940. CH874		Commons
commons	image		Michael Young (cropped from 264 Squadron CH197)		Commons
commons	image		Fitters working on the Rolls-Royce Merlin engine of a Boulton Paul Defiant of No. 125 Squadron RAF at Fairwood Common, Wales, January 1942. CH4607		Commons
commons	image		Eric Barwell (cropped from 264 Squadron CH197)		Commons
commons	image		Boulton Paul Defiant ExCC		Commons
commons	image		Air Ministry Second World War Official Collection CH876		Commons
commons	image		264 Squadron CH197		Commons
commons	image		Boulton Paul Defiants of No. 264 Squadron RAF being prepared for take-off at Kirton-in-Lindsey, Lincolnshire, August 1940. CH880		Commons
commons	image		RAF Fighter Command 1940 HU104496		Commons