This standard specifies the interchangeable dimensions of propeller hubs and propeller shaft ends with tapers of 1:10 and 1:16 and shaft diameters ranging from 20 mm to 160 mm installed on recreational and commercial inboard boats.
GB/T 11699-2008 Referenced Document
ISO 1947:1973 System of cone tolerances for conical workpieces from C = 1:3 to 1:500 and lengths from 6 to 630 mm
ISO/R 773:1969 Rectangular or square parallel keys and their corresponding keyways (Dimensions in millimetres)
GB/T 11699-2008 history
2008GB/T 11699-2008 Small craft with inboard engine.Propeller shaft ends and bosses
2003GB/T 11699-2003 Small craft with inboard engine--Propeller shaft ends and bosses with 1:10 taper
1989GB 11699-1989 Small craft--Inboard engine-propeller shaft ends and bosses