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Professionally recreated, this is a real blueprint - made directly from a vellum master - Measuring a generous 42"x 30".

Sabre-II aircraft engine - The Sabre was installed in a number of experimental aircraft and went into two production aircraft. Both were fighters built by Hawker: Typhoon and TEMPEST.

The Napier Sabre was a 24-cylinder sleeve valve piston aircraft engine built by Napier & Son during WWII. It was one of the most powerful piston aircraft engines in the world, especially

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The Napier Sabre represented the ultimate in piston engine technology, not only in the 1930s when it was conceived, but even by today ´s standards. It was a truly remarkable engine, representing the ultimate in complexity, technology, specific power, and unfortunately .... problems. In retrospect it can be stated that many of the Sabre's woes were due the pressures in wartime England to get the latest technology into production as rapidly as possible, even though many of the "bugs", both design - and manufacturing-related, had not been work out.