Spirito Mario Viale

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Spirito Mario Viale (born 7 February 1882) was an Italian engineer was born in Turin, but did most of his important work in France and (in particular) the UK. He was an early manufacturer of aircraft engines, producing a series of 3-, 5-, and 7-cylinder radials from a workshop in Boulogne-sur-Seine from 1910 until the outbreak of World War I.

In 1919, he emigrated to the United Kingdom, where he went to work for Armstrong Siddeley before returning to Italy in the early 1930s to pursue landscape painting and worked with Isotta Fraschini for a time. The rise of fascism drove him back to England, where he found work as chief designer of Rolls-Royce's armaments division. When these projects were abandoned, he returned to work on aero engines with Rolls-Royce until his retirement in 1947.

See also[edit]


  • Rolls-Royce website
  • Lambert, J and Al Ross (1990) Allied Coastal Forces of World War II Conway.