During World War I, Siddeley-Deasy grew to have 5,000 workers producing ambulances and aircraft engines which included the Puma and Tiger, not to be confused with the much later Armstrong Siddeley Tiger.
During World War I, Siddeley-Deasy grew to have 5,000 workers producing ambulances and aircraft engines which included the Puma, a straight-6 and the Tiger. The latter was a water cooled V-12 Tapper p.114, not to be confused with the much later Armstrong Siddeley Tiger.