Rule 12 — Sailing Vessels
Appears on 50% of examsDifficulty 3/540 drill questions
On the paperQ100 / Q30050 questions90% to pass, 5 wrong allowed
Authoritative sources#
Every answer on this topic traces back to the public rule corpus below.
Source excerpts#
33 CFR §83.11
Application (Rule 11). Rules 11 through 18 (§§ 83.11 through 83.18) apply to vessels in sight of one another.
33 CFR §83.12
Sailing vessels (Rule 12). (a) When two sailing vessels are approaching one another, so as to involve risk of collision, one of them shall keep out of the way of the other as follows: (i) When each has the wind on a different side, the vessel which has the wind on the port side shall keep out of the way of the other. (ii) When both have the wind on the same side, the vessel which is to windward shall keep out of the way of the vessel which is to leeward. (iii) If a vessel with the wind on the port side sees a vessel to windward and cannot determine with certainty whether the other vessel has the wind on the port or on the starboard side, she shall keep out of the way of the other. (b) For the purpose of this Rule, the windward side shall be deemed to be the side opposite to that on wh…
46 CFR §175.120
Vessels on an international voyage. A mechanically propelled vessel that carries more than 12 passengers on an international voyage must comply with the applicable requirements of SOLAS, as well as this subchapter.
46 CFR §177.315
Vessels of not more than 19.8 meters (65 feet) in length carrying not more than 12 passengers. The scantlings for a vessel of not more than 19.8 meters (65 feet) in length carrying not more than 12 passengers that do not meet the standards in § 177.300 or § 177.310 may be approved by the cognizant OCMI if the builder of the vessel establishes to the satisfaction of the OCMI that the design and construction of the vessel is adequate for the intended service.
46 CFR §177.330
Sailing vessels. The design, materials, and construction of masts, posts, yards, booms, bowsprits, and standing rigging on a sailing vessel must be suitable for the intended service. The hull structure must be adequately reinforced to ensure sufficient strength and resistance to plate buckling. The cognizant OCMI may require the owner to submit detailed calculations on the strength of the mast, post, yards, booms, bowsprits, and standing rigging to the Marine Safety Center for evaluation.
46 CFR §178.310
Intact stability requirements—general. (a) Except as provided in paragraph (c) of this section, each vessel must, in each condition of loading and operation, comply with the applicable requirements of— (1) Part 170 of this chapter, except subparts G and H; and (2) Part 171 of this chapter, subparts A and B. (b) Sailing vessels must meet the appropriate requirements of § 171.055 or § 171.057 in subchapter S in this chapter while under sail, as well as the requirements of § 170.170 in subchapter S in this chapter while under bare poles (if an auxiliary sailing vessel as defined in § 170.055(a) of this chapter) and with storm sails set and trimmed flat (if a sailing vessel as defined in § 170.055(n) of this chapter). (c) As an alternative to meeting the requirements of paragraphs (a) and…
Practice this topic#
One real exam question on this topic, cited to source. No sign-up.
Under the Inland Rules, which vessel type is NOT listed among those that a sailing vessel underway must keep out of the way of?
Study this topic#
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