About: List of Air Ministry specifications

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This is a partial list of the British Air Ministry (AM) specifications for aircraft. A specification stemmed from an Operational Requirement, abbreviated "OR", describing what the aircraft would be used for. This in turn led to the specification itself, e.g. a two-engined fighter with four machine guns. So for example, OR.40 for a heavy bomber led to Specification B.12/36. Aircraft manufacturers would be invited to present design proposals to the ministry, following which prototypes of one or more of the proposals might be ordered for evaluation. On very rare occasions, a manufacturer would design and build an aircraft using their own money as a "private venture" (PV). This would then be offered to the ministry for evaluation. If the aircraft generated interest in the ministry or RAF due t

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  • Die Air Ministry Specifications waren ein von 1917 bis 1949 verwendetes Bezeichnungssystem zur eindeutigen Kennzeichnung der technischen Ausschreibungsanforderungen für Luftfahrzeuge des britischen Air Ministry.Operational Requirements (OR, Operationelle Anforderungen) waren die Vorstufe zu einer Air Ministry Specification und wurden beginnend mit „1“ durchnummeriert. Ein Beispiel sind die OR.229, die zur AM Specification B.35/46 führten, aus der schließlich die Avro Vulcan und Handley Page Victor hervorgingen. (de)
  • This is a partial list of the British Air Ministry (AM) specifications for aircraft. A specification stemmed from an Operational Requirement, abbreviated "OR", describing what the aircraft would be used for. This in turn led to the specification itself, e.g. a two-engined fighter with four machine guns. So for example, OR.40 for a heavy bomber led to Specification B.12/36. Aircraft manufacturers would be invited to present design proposals to the ministry, following which prototypes of one or more of the proposals might be ordered for evaluation. On very rare occasions, a manufacturer would design and build an aircraft using their own money as a "private venture" (PV). This would then be offered to the ministry for evaluation. If the aircraft generated interest in the ministry or RAF due to performance or some other combination of features then the ministry might well issue a specification based on the private venture aircraft. The system of producing aircraft to a specification ran from 1920 to 1949 during which the Air Ministry was replaced by first the Ministry of Aircraft Production (MAP) in 1940 and then the Ministry of Supply (MoS) in 1946. The system was applied to commercial aircraft as well, two being the de Havilland Comet and Vickers Viscount. During the period, over 800 specifications were issued. (en)
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  • Die Air Ministry Specifications waren ein von 1917 bis 1949 verwendetes Bezeichnungssystem zur eindeutigen Kennzeichnung der technischen Ausschreibungsanforderungen für Luftfahrzeuge des britischen Air Ministry.Operational Requirements (OR, Operationelle Anforderungen) waren die Vorstufe zu einer Air Ministry Specification und wurden beginnend mit „1“ durchnummeriert. Ein Beispiel sind die OR.229, die zur AM Specification B.35/46 führten, aus der schließlich die Avro Vulcan und Handley Page Victor hervorgingen. (de)
  • This is a partial list of the British Air Ministry (AM) specifications for aircraft. A specification stemmed from an Operational Requirement, abbreviated "OR", describing what the aircraft would be used for. This in turn led to the specification itself, e.g. a two-engined fighter with four machine guns. So for example, OR.40 for a heavy bomber led to Specification B.12/36. Aircraft manufacturers would be invited to present design proposals to the ministry, following which prototypes of one or more of the proposals might be ordered for evaluation. On very rare occasions, a manufacturer would design and build an aircraft using their own money as a "private venture" (PV). This would then be offered to the ministry for evaluation. If the aircraft generated interest in the ministry or RAF due t (en)
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  • Air Ministry Specification (de)
  • List of Air Ministry specifications (en)
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