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

Casual Navigation Academy

17 Jul 201903:21

Summary

TLDRThis 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.

Outlines

00:00

🚢 Anchored Vessel Lighting Rules

This paragraph outlines the lighting requirements for anchored vessels as per Rule 30. It begins by explaining that tankers should exhibit an all-round white light or a ball at the stern, with additional lights if over 50 meters in length. Vessels under 50 meters may use a single all-round white light. For vessels over 100 meters, deck lights are mandatory to illuminate the deck. The paragraph also covers the specific lighting for aground vessels, which includes the standard lights plus two all-round red lights or three balls by day. The video script uses a diagram to illustrate these requirements.

🚤 Exemptions for Small Vessels

The second part of the script discusses exemptions for smaller vessels. It states that vessels under seven meters in length are not required to exhibit the lights or shapes prescribed by Rule 30, unless they are navigating in areas typically used by other vessels. Additionally, vessels less than 12 meters in length are exempt from displaying the aground signals if they are aground, unless they are in a narrow channel, fairway, anchorage, or where other vessels navigate.

Mindmap

Keywords

💡Rule 30

Rule 30 refers to a specific regulation in maritime law, specifically the International Regulations for Preventing Collisions at Sea (COLREGS). It outlines the requirements for vessels at anchor or aground to exhibit lights and shapes to be visible to other vessels. In the video, Rule 30 is the central focus, explaining the different requirements based on the size and condition (anchored or aground) of the vessel.

💡Vessels

Vessels in this context are ships or boats, which are the primary subjects of Rule 30. The video discusses how different types of vessels, such as tankers and smaller boats, are required to display lights and shapes according to their length and whether they are anchored or aground. This is crucial for ensuring visibility and safety at sea.

💡Anchored Vessels

Anchored vessels are ships that are stationary in the water, held in place by anchors. The video script explains that these vessels must exhibit specific lights and shapes as per Rule 30 to be visible to other vessels, especially at night. This is important for collision prevention and navigation safety.

💡Aground Vessels

An aground vessel is one that has run aground, meaning it has come into contact with the bottom of the water body, typically the shore or shallow waters. The video emphasizes that such vessels must display additional lights and shapes to indicate their position, which is critical for avoiding further collisions or hazards.

💡All-Round White Light

The all-round white light is a type of navigation light that is visible from all directions. In the context of Rule 30, it is required for vessels over 50 meters in length when anchored or aground. The video script uses this term to describe the mandatory lighting for larger vessels, highlighting its importance in visibility.

💡Ball

In maritime signaling, a 'ball' refers to a shape that is used to indicate the status of a vessel, such as being anchored. The video script mentions that vessels must display a ball at the stern and at a lower level than the lights, which is a visual signal used in conjunction with lights.

💡Length

The length of a vessel is a critical factor in determining the lighting and signaling requirements under Rule 30. The video script distinguishes between vessels less than 50 meters and those over 50 meters, with different requirements for each. Length is used to categorize vessels and apply the appropriate regulations.

💡Deck Lights

Deck lights are lights used to illuminate the deck of a vessel. According to the video script, vessels over 100 meters in length must use their deck lights when anchored, which is an additional requirement to enhance visibility and safety.

💡Lights Prescribed

The term 'lights prescribed' in the video script refers to the specific lighting requirements outlined in Rule 30. These include the all-round white lights and additional red lights for aground vessels. The script explains how these lights must be displayed based on the vessel's size and condition.

💡Exempt

In the context of the video, 'exempt' refers to vessels that are not required to follow certain lighting and signaling regulations under Rule 30. For example, vessels less than 7 meters in length are exempt unless in areas where other vessels normally navigate, and vessels less than 12 meters are exempt from displaying lights or shapes when aground.

💡Diagram

The diagram mentioned in the video script is a visual aid used to illustrate the lighting and signaling requirements of Rule 30. It helps viewers understand how the lights and shapes should be displayed on different types of vessels, enhancing the clarity of the explanation.

Highlights

Rule 30 focuses on the display of lights and shapes for anchored vessels and vessels aground.

Tankers and vessels exhibit an all-round white light or a ball at the stern for visibility.

Vessels under 50 meters may show a single all-round white light instead of multiple lights.

For vessels over 50 meters, two all-round white lights are required, one forward and one aft, with the aft light being lower.

Vessels over 100 meters should illuminate their decks using available working lights.

Deck lighting is optional for vessels under 100 meters.

Aground vessels must display two all-round red lights vertically in addition to the anchor lights.

A vessel aground less than 12 meters is not required to exhibit lights or shapes indicating grounding.

Vessels under 7 meters are exempt from light requirements unless navigating in specific areas.

The rule applies to tankers and other vessels, with specific conditions for size and grounding.

Diagrams are used to visually represent the required lights and shapes for different vessel sizes.

The video explains the importance of proper lighting for safety and visibility at sea.

Different rules apply based on the vessel's length and whether it is anchored or aground.

The video provides a clear explanation of maritime lighting rules for various vessel conditions.

Understanding Rule 30 is crucial for ensuring navigational safety and compliance.

The video concludes with a summary of Rule 30 and its practical applications.

The presenter thanks viewers for watching and invites them to return for future videos.