USCG Exam PracticeTwin-screw vessel handling
Compared with twin outboards mounted on a bracket, twin inboards apply their turning moment to the hull at a point that is:
- ✓ Closer to the pivot point, at the first thrust-bearing member of the drive trainCorrect
- B. Further aft of the pivot point, producing a greater turning moment arm
- C. At the same relative distance from the pivot point, because hull length is the controlling factor
- D. Forward of the pivot point, reversing the direction of the turning moment
Why A is correct
§10-D explains that twin outboards on a bracket apply the turning moment well aft of the hull's pivot point, while twin inboards apply most of it at the first thrust-bearing member of the drive train — usually the reduction gear or V-drive — which is much closer to the pivot point.