USCG Exam PracticeTwin-screw vessel handling
Under 33 CFR §164.35, a vessel is required to display a maneuvering fact sheet in the wheelhouse. The fact sheet must include a turning circle diagram showing advance and transfer for a 90-degree course alteration. For a vessel whose turning circles to port and starboard are essentially the same, what is the permissible alternative to showing separate port and starboard diagrams?
- A. A single diagram showing the larger of the two turning circles with a note that the other direction is smaller
- B. A table of advance and transfer values for both directions in lieu of a diagram
- ✓ A diagram showing a turning circle in one direction with a note on the diagram stating that turns to port and starboard are essentially the sameCorrect
- D. A written statement signed by the master attesting that port and starboard turning circles are equivalent, in lieu of any diagram
Why C is correct
33 CFR §164.35(g)(1) provides that for vessels whose turning circles are essentially the same for both directions, a diagram showing a turning circle in one direction, with a note on the diagram stating that turns to port and starboard are essentially the same, may be substituted for separate port and starboard diagrams. No other alternative format is authorized by this section.
Cited:33 CFR §164.35