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The Blenheim in Squadron service

Nevertheless by the start of the war some 1089 Blenheims were in squadron service more than any other type of aircraft. It lacked any real defensive armament, an area addressed in later marques, and on one offensive mission toward the start of the war following one 139 squadron raid across the channel, only three aircraft returned to their base at RAF Whitton. This could have been the raid on Trondheim Airfield during the Norwegian campaign and the first inland raid by an RAF Bomber Command squadron.

By the start of the war in 1939 a long nose version, the Blenheim IV, was in production. The Blenheim was used in many roles, for some of which it was unsuited, and initially suffered heavy losses. It was used in the first offensive attack of the war, sunk the first U-boat, bombed the German invasion fleet, and was the first aircraft to be fitted with AI radar and used as a night fighter. The Blenheim was the only aircraft to serve in every one of the RAF Commands and in every theatre of war and 94 Squadrons had Blenheims on charge at one time or another. Over 600 aircraft were produced in Canada by the Fairchild Aircraft Company under the name Bolingbroke giving a total production of 5268.

Leading Particulars Blenheim IV & Bolingbroke I, II & IV
Span 56 ft 4 in (17.2m)
Length 42 ft 9 in (14.1m)
Height 12 ft 10in (3.9m)
Max Weight 12,500-14,400lb (5,670kg)
Max Speed 295-260mph (472kmh)
Service Ceiling 31,500 ft
Range 1,950 miles (3,120 kilometres)
Engine Two 920 hp Bristol Mercury XV

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This is page 1 of The Bristol Blenheim Type 142M.
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A Flight of Blenheim Mk 1's

A Flight of Blenheim Mk 1's
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Type 142M in 1937 on the airfield at Filton

Type 142M in 1937 on the airfield at Filton
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Type 142M Blenheim IV long nosed version

Type 142M Blenheim IV long nosed version
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