Avro Manchester

The Avro Type 679 Manchester was a heavy bomber used by the RAF during the early stages of World War 2.
==Development==
The Manchester has its origins in a design produced by Avro in order to fulfil the British Air Ministry's Specification P.13/36. This was the same specification to which Handley Page had also produced their initial design for what would become the Halifax bomber. Issued in May 1936, Specification P.13/36 called for a twin-engine monoplane "medium bomber" for "worldwide use", which was to be capable of carrying out shallow (30°) dive bombing attacks and carry heavy bombloads (8,000 lb/3,630 kg) or two 18 in (457 mm) torpedoes. Additionally, provisions to conduct catapult assisted takeoffs, which would permit the carriage of the maximum payload, was also a stated requirement, although this provision was removed in July 1938. The envisioned cruising speed of the bomber was to be a minimum of 275 mph at 15,000 feet. The Air Ministry had expectations for an aircraft of similar weight to the B.1/35 specification, but smaller and faster.
==Service==
On 5 August 1940, the first production Avro Manchester, L7276, was delivered to RAF Boscombe Down in advance of service acceptance trials. In November 1940, the Manchester officially entered service with the newly reformed No. 207 Squadron of RAF Bomber Command. The type passed all acceptance tests by 21 December 1940, and 207 Squadron had at least 80 Manchesters on strength by the end of 1940. The Manchester's first operational mission was conducted on 24–25 February 1941 in a raid on the French port of Brest. On 13 March 1941, L7319 became the first Manchester to be shot down by enemy fire.
On 13 April 1941, all Manchesters were temporarily grounded due to a higher than expected number of engine bearing failures; on 16 June 1941, a second grounding of the type was ordered due to more engine troubles. The unserviceability of the Vulture engine forced squadrons to make use of obsolete bombers such as the Hampden in its place. Upon the restart of operations in August 1941, additional failings were encountered; excessive tail flutter, hydraulic failures and faulty propeller feathering controls. Production of the Manchester was halted in November 1941, by which point a total of 202 aircraft had been constructed. A total of eight bomber squadrons were equipped with the type, it also served in two further squadrons and also saw use by RAF Coastal Command.
The Manchester was eventually replaced by the Avro Lancaster
==Notes==
==Sources==
Category:British
Category:World War 2
Category:Heavy bomber
Category:Avro
Category:Monoplane
Category:Multiple crew members
Category:Multi piston engine
Category:Land Based