The shaft of the starter fits into a special protruding hub incorporating a simple projecting claw clutch on the center of the airplane's propeller assembly.
[1] The Hucks starter was introduced to Royal Air Force service in the months following the Armistice of 11 November 1918, which had effectively brought the conflict to an end.
[3] The RAF's Hucks starter fleet were typically based on Ford Model T trucks, which were already in widespread use and familiar to ground crews.
[1] The Royal Canadian Air Force (RCAF) also made extensive use of Hucks starters; they were particularly needed by aircraft such as those Avro 504s that had been reengined with the Armstrong-Siddeley Lynx.
[1] The RAF Museum London has a restored example, comprised both of original pieces from multiple vehicles and new-build bodywork, on permanent display.