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Wikipedia definition
1. Armstrong Siddeley SapphireThe Armstrong Siddeley Sapphire was a British turbojet engine produced by Armstrong Siddeley in the 1950s. It was the ultimate development of work that had started as the Metrovick F.2 in 1940, evolving into an advanced axial flow design with an annular combustion chamber that developed over 11,000 lbf. It powered early versions of the Hawker Hunter and Handley Page Victor, and every Gloster Javelin.
Read “Armstrong Siddeley Sapphire” on English Wikipedia
Read “アームストロング・シドレー サファイア” on Japanese Wikipedia
Read “Armstrong Siddeley Sapphire” on DBpedia

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