USCG Exam PracticeTwin-screw vessel handling
33 CFR §164.35 requires the wheelhouse maneuvering fact sheet to display turning circle information. Under what baseline conditions must this maneuvering data be derived?
- A. Wind 15 knots or less, no current, water depth equal to the vessel's draft, and clean hull
- ✓ Calm weather with wind 10 knots or less, no current, water depth twice the vessel's draft or greater, and clean hullCorrect
- C. Calm weather with wind 10 knots or less, no current, water depth 1.5 times the vessel's draft, and clean hull
- D. Wind 10 knots or less, standard tidal current, water depth twice the vessel's draft or greater, and clean hull
Why B is correct
33 CFR §164.35(g)(6) specifies that the maneuvering information must reflect normal load and normal ballast conditions for calm weather (wind 10 knots or less, calm sea), no current, deep water conditions (water depth twice the vessel's draft or greater), and clean hull. Any variation from these four conditions may alter the vessel's response, as noted in the warning statement required at the bottom of the fact sheet.
Cited:33 CFR §164.35