With reference to podded thrusters for main propulsion: (a) Distinguish between podded and azimuthing thrusters; (4) (b) Explain the meaning of thruster and tractor propellers, stating ONE advantage of tractor units; (4) (c) Explain what is meant by tandem podded thrusters. (2)
Propeller, shafting & thrusters
UKM Tuticorin 
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