USCG Exam PracticeRule 23 — Power-driven Vessel Underway (lights)
An air-cushion vessel operating in the non-displacement mode is underway at night. In addition to the lights required for a power-driven vessel under Rule 23(a), she must exhibit which additional light?
- A. A high-intensity all-round flashing red light
- ✓ An all-round flashing yellow light where it can best be seenCorrect
- C. A special flashing light on the fore and aft centerline
- D. Two all-round red lights in a vertical line
Why B is correct
33 CFR §83.23(b) requires an air-cushion vessel operating in the non-displacement mode to exhibit an all-round flashing yellow light in addition to the standard Rule 23(a) lights. The high-intensity all-round flashing red light applies to WIG craft under §83.23(c), not air-cushion vessels.
Cited:33 CFR §83.23