| 11. | Mazda began working with German company Wankel on developing rotary engines in 1961.
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| 12. | The MacGregor expedition took with them a 1933 model Continental air-cooled rotary engine.
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| 13. | After that they were eclipsed by the new, light rotary engines.
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| 14. | They do not use Angelo Di Pietro's rotary engine design .)
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| 15. | All the Mazda rotary engines have been praised because of their light weight.
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| 16. | The Rotary Engine Anti Pollution System ( REAPS ) hurt torque.
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| 17. | The Kudzu is the only rotary engine-powered car in the race.
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| 18. | Mazda launched its first rotary engine-powered car, the Mazda Cosmo Sports, in 1968.
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| 19. | NSU then focused on new rotary engines based on the ideas of Felix Wankel.
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| 20. | Rotary engines of the Wankel design are used in some automobiles, aircraft and motorcycles.
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