1. Explain the different type of gear selection systems
A) in outboard gearcases and stern drivers.
B) Inboard marine gearboxes
2. What type of gears are used in outboards and stern legs?
A) Give an explanation of why manufacturers choose this type of gear
3. Explain what a duo propeller system is and how it works/operates
4. Why would a V drive be used instead of a standard shaft drive system
5. Compare a jet unit with a surface drive unit and give reasons why you would choose one system over the other
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