Rolls-Royce advanced turbo-propeller | De Havilland H6 Gyron Junior

Rolls-Royce advanced turbo-propeller

De Havilland H6 Gyron Junior

When a change in government fighter require- ments halted development of the 20,000 lb thrust H4 Gyron in 1955, de Havilland decided to build a 0.45 scale version known as the H6 Gyron Junior. First run in August 1955 it was later used to power the Blackburn Buccaneer S1 at 7100 lb thrust and the stainless steel Bristol 188 at 14,000 lb with afterburner.