Alvis Leonides Major
The Alvis Leonides Major is a British air-cooled 14-cylinder radial aero engine developed by Alvis from the earlier nine-cylinder Leonides.
Design and development
In 1951 Alvis started development of a 14-cylinder, two row radial of 1,118 cu in displacement, based on the Leonides. Certification covered the Mk. 702/1 for aeroplanes at and the 751/1 for helicopters at. The only numerous model of the Major was the Mk. 755/1, a medium supercharged, de-rated, obliquely mounted direct-drive and fan cooled engine fitted to the Westland Whirlwind Mks. 5, 6, 7 and 8.Variants
Data from:British Piston Engines and their Aircraft.;Leonides Major 702/1
;Leonides Major 751/1
;Leonides Major 755/1
;Leonides Major 755/2
Applications
- Bristol Type 173 Mk3 – 2x 755/1 ; 2x 755/2
- Handley Page HPR.5 Herald – four 702/1
- Westland Whirlwind 1x 755/1 or 1x 755/2
Specifications (Leonides Major 702/1)