The Father Of Mazda’s Rotary Engine Dies At 95

Legendary mechanical engineer Kenichi Yamamoto died on Dec. 20 near Tokyo at the age of 95. Yamamoto led the engineering team at Mazda that produced a commercially viable rotary engine in the 1960s – the rotary-powered Cosmo coupe debuted at the Tokyo Motor Show in 1963.

In the 1970s his focus increasing the fuel efficiency of rotary engines helped sales of the Mazda RX-7 skyrocket. He later became president and chairman of the Japanese automobile manufacturer. And in 1985 as company president, Yamamoto recommended that the board approve production of a new lightweight two-seater sports car, resulting in the birth of the Mazda Miata.

According to his obituary, his rotary engine design has powered 1.8 million Mazda vehicles.

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