Rotol Airscrews of England has announced 4-bladed hydraulically controlled variable pitch propeller, hub diameter and weight being actually less than equivalent 3-bladed 35° variable pitch propeller which is fitted to latest Spitfires and Hurricanes; further development is four-bladed electrically controlled variable pitch propeller also by same Company.
Four-blade propeller by rotol
Can Aviation
Canadian Aviation ; 14 , n 7
1941
Aufsatz (Zeitschrift)
Englisch
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Rotol variable pitch marine propeller
Engineering Index Backfile | 1946
Engineering Index Backfile | 1946
Engineering Index Backfile | 1940
Engineering Index Backfile | 1944
Engineering Index Backfile | 1940