Rule 30: Anchored Vessels & Vessels Aground | Lights & Shapes In Depth

Summary

This video explains Rule 30 for vessels at anchor or aground, detailing light and shape requirements. Ships under 50m show one white light, those over 50m display two, with the stern light lower. Deck lights are mandatory for vessels over 100m. Aground vessels must show two red lights vertically, and smaller vessels under 7m are exempt unless in navigation areas. Under 12m vessels don't need to indicate being aground.

Takeaways

• 🚢 Rule 30 of the video discusses the lighting requirements for anchored vessels and vessels aground.
• 🌟 Vessels over 50 meters must exhibit an all-round white light both forward and aft, with the stern light at a lower level than the forward light.
• 🛥 Vessels under 50 meters can display a single all-round white light in the best visible location instead of the two lights required for larger vessels.
• 🏴‍☠️ The day signal for both size categories is one ball, indicating the presence of the vessel.
• 💡 Vessels over 100 meters in length are required to illuminate their decks using working or equivalent lights.
• 🚢🚧 A vessel aground must show the lights as prescribed in paragraphs A or B, plus two all-round red lights in a vertical line, or three balls by day.
• 🚧 Vessels aground must exhibit additional red lights to signify their grounded state.
• 🛶 Vessels under 7 meters are exempt from the lighting requirements unless they are in a narrow channel, fairway, anchorage, or where other vessels navigate.
• 🚫 Vessels under 12 meters are not required to exhibit lights or shapes indicating they are aground.
• 🔦 Deck lights are optional for vessels under 100 meters, but mandatory for those over 100 meters when anchored.
• 📚 The video concludes with a reminder that the information provided is intended to be useful for understanding Rule 30.

Q & A

What is the main focus of the video script?

The video script focuses on explaining Rule 30 of the International Regulations for Preventing Collisions at Sea (COLREGS), specifically regarding the lights and shapes that anchored vessels and vessels aground must exhibit.

According to Rule 30, what is the requirement for a tanker to exhibit when anchored?

A tanker, when anchored, must exhibit an all-round white light where it can best be seen, one ball at the stern, and at a lower level than the lights, another all-round white light.

What is the difference in lighting requirements for vessels less than 50 meters in length compared to those over 50 meters?

Vessels less than 50 meters in length may exhibit a single all-round white light where it can best be seen, instead of the two lights required for vessels over 50 meters.

What additional lighting is required for vessels anchored at or above 100 meters in length?

For vessels 100 meters or more in length, in addition to the all-round white lights, they must also use available working or equivalent lights to illuminate their decks.

What does paragraph D of Rule 30 state about a vessel aground?

A vessel aground must exhibit the lights prescribed in paragraphs A or B (two all-round white lights if over 50 meters, or one if under) and, in addition, two all-round red lights in a vertical line or, by day, three balls in a vertical line.

Are there any exemptions for vessels less than 7 meters in length regarding the lights or shapes prescribed in Rule 30?

Yes, vessels less than 7 meters in length are exempt from exhibiting the lights or shapes prescribed in paragraphs A or B of Rule 30 when not in or near a narrow channel, fairway, anchorage, or where other vessels normally navigate.

What is the exemption for vessels less than 12 meters in length when aground?

Vessels less than 12 meters in length are not required to exhibit the lights or shapes prescribed in subparagraph D one or two when aground.

How does the script use diagrams to aid in understanding Rule 30?

The script uses diagrams to visually represent the different lighting configurations required for vessels of varying lengths and situations, such as being anchored or aground.

What is the significance of the day signal of one ball mentioned in the script?

The day signal of one ball is used to represent the all-round white light required for vessels, especially when the vessel is less than 50 meters in length or aground.

Can you provide an example of how the lights should be positioned on a vessel over 50 meters in length?

For a vessel over 50 meters in length, there should be two all-round white lights, one at the forward end and one at the after end, with the after light being at a lower level than the forward light.

What is the purpose of the lights and shapes required by Rule 30?

The purpose of the lights and shapes required by Rule 30 is to increase the visibility of anchored vessels and vessels aground, ensuring the safety of navigation by helping other vessels to identify and avoid potential collisions.