Podcast
Questions and Answers
What is the primary purpose of navigation lights?
What is the primary purpose of navigation lights?
What color is the navigation light displayed on the left side of a vessel?
What color is the navigation light displayed on the left side of a vessel?
Which of the following vessels is exempt from displaying navigation lights?
Which of the following vessels is exempt from displaying navigation lights?
How far must navigation lights be visible, at a minimum?
How far must navigation lights be visible, at a minimum?
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What international regulations govern the use and display of navigation lights?
What international regulations govern the use and display of navigation lights?
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When must navigation lights be displayed?
When must navigation lights be displayed?
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Study Notes
Navigation Lights
Purpose
- To indicate a vessel's position, direction, and status to other vessels and observers
- To prevent collisions and ensure safe navigation
Types of Navigation Lights
- Port light: Red light displayed on the left (port) side of the vessel
- Starboard light: Green light displayed on the right (starboard) side of the vessel
- Stern light: White light displayed at the rear of the vessel
- Masthead light: White light displayed forward of the beam of the vessel, visible from 225°
- Anchor light: White light displayed when the vessel is at anchor
Visibility Requirements
- Navigation lights must be visible for a minimum distance of 1-3 nautical miles, depending on the type of light
- The intensity of the lights must meet specific standards
International Regulations
- The International Regulations for Preventing Collisions at Sea (COLREGS) dictate the use and display of navigation lights
- COLREGS apply to all vessels, including power-driven vessels, sailing vessels, and vessels under tow
Additional Requirements
- Vessel length: Navigation lights are required for vessels over 7 meters (23 feet) in length
- Operating hours: Navigation lights must be displayed from sunset to sunrise and during periods of reduced visibility
- Exceptions: Certain vessels, such as sailboats and fishing vessels, have specific exemptions or variations to the navigation light requirements
Navigation Lights
Purpose
- Indicate vessel's position, direction, and status to prevent collisions and ensure safe navigation
Types of Navigation Lights
- Port light: red, displayed on left (port) side
- Starboard light: green, displayed on right (starboard) side
- Stern light: white, displayed at rear
- Masthead light: white, forward of beam, visible from 225°
- Anchor light: white, displayed when at anchor
Visibility Requirements
- Minimum visibility distance: 1-3 nautical miles, depending on type of light
- Intensity of lights must meet specific standards
International Regulations
- COLREGS dictate use and display of navigation lights
- Apply to all vessels: power-driven, sailing, and under tow
Additional Requirements
- Vessel length: navigation lights required for vessels over 7 meters (23 feet) in length
- Operating hours: navigation lights must be displayed from sunset to sunrise and during reduced visibility
- Exceptions: sailboats and fishing vessels have specific exemptions or variations
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Description
Test your knowledge on the purpose and types of navigation lights used on vessels to ensure safe navigation and prevent collisions.
