Question   

Sketch a section through a keyless propeller

State the advantages of using a keyless sleeved propeller

State with reason which metal sleeve should be made for contact with forged mild steel tail shaft

State with reason the material used to bond the sleeve to the propeller and the general thickness of the bonding material.

SEP 2017/JUN 2018/SEP 2019/JAN 2019/MAR 2019