Safe Speed


A velocity that allows adequate time to avoid collisions, considering visibility, traffic density, weather, and vessel maneuverability; mandated by navigation rules.

Related Terms

Line-of-Sight Limitations

When obstructions (bridge walls, large vessels) block your view of approaching traffic or hazards...

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Trim Tabs

Adjustable plates on a boat’s transom that help control plane and bow rise, improving stability a...

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Night Vision Devices

Thermal or low-light scopes or goggles aiding nighttime navigation; boater ed covers proper usage...

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Give-Way Vessel

The boat required to alter course or slow down to avoid a collision with a stand-on vessel under ...

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Overloading Vessel

Placing too many passengers or too much weight on board, risking capsizing or swamping; boater ed...

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Navigation Rules

The “rules of the road” for waterways, dictating right-of-way, overtaking procedures, and collisi...

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Storm Surge

An abnormal rise in water level caused by storms or hurricanes, posing severe flooding risks; boa...

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Operating in Fog

Techniques like sounding fog signals, reducing speed, and using radar or GPS to avoid collisions ...

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Required Lighting at Night

Navigation lights (red and green sidelights, white sternlight, and masthead light) must be used f...

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Hydrofoil-Enhanced Hull

A boat design where submerged “wings” lift the hull at speed, reducing drag and increasing effici...

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Collision Avoidance

Strategies to prevent accidents, including early course changes, clear signals, and adherence to ...

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Rough Water Handling

Techniques for operating in high waves, heavy chop, or strong winds (e.g., reducing speed, headin...

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Pontoon Handling

The operation of pontoon-style boats, focusing on wide turns, weight distribution, and wind effec...

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Speed Limits on Waterways

Specific speed restrictions in certain waterways, especially near marinas, wildlife areas, or con...

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Heavy Displacement vs. Planing Hulls

Hull designs that either push through water (displacement) or ride on top (planing). Boater educa...

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Marine Weather Forecast

The official or commercial prediction of wind speed, wave height, storm fronts, and other conditi...

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Anchoring Techniques

Proper methods of securing a vessel in place using anchors and rodes, including scope calculation...

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Marine Compass

A device indicating heading relative to magnetic north, essential for navigation in open water or...

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Sunset vs. Sunrise Definition

States or local rules define exact times for “sunset” and “sunrise” to enforce navigation light r...

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Weather Routing Services

Third-party or online providers giving route suggestions based on predicted weather patterns, com...

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Marine Radar

An electronic device that detects objects or landmasses around a vessel by bouncing radio waves o...

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Capacity Plate

A placard found on most boats under 20 feet stating the maximum weight/people the vessel can safe...

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