X

Imtra Learning Center

Imtra’s Learning Center is a great resource for everything you need to know about your boat’s equipment and systems. Everything from product overviews, product comparisons, buying guides, troubleshooting guides, maintenance tips and more can be found here, and it’s always being updated. Be sure to also check out our video library for product demonstrations, how-tos, webinars and much more!

 

Search

Categories

Glossary of Boating Terms

Anchoring

Anchor Rode

The line that secures the boat to the anchor. It may consist of all chain, all rope, or rope spliced to chain

Anchor Windlass

A powered or manual winch designed specifically for hauling or deploying a boat's anchor. Typically mounted in the bow.

Anchoring Scope

The amount of anchor rode let out when anchoring, relative to the depth of the water. Conventional wisdom is that scope should be six times the depth of the water you're anchoring in.

Bow Roller

A wheel mounted on the bow or sprit of a boat which the anchor rests on when it is up, and which helps the anchor rode smoothly roll over the edge of the boat when being deployed or hauled.

Capstan

Often referred to as a drum or rope drum, the capstan is used primarily for hauling rope. Can stand alone or be a part of an anchor windlass when paired with a chainwheel.

Chainstopper

Located between the anchor windlass and the bow roller to secure the chain and anchor so as to take the load of the anchor off of the windlass.

Chainwheel

Part of an anchor windlass. A special wheel with pockets to accommodate a specified chain size for hauling up the chain and anchor. Some chainwheels are designed to handle both chain and rope, which others handle only chain. Also referred to as a gypsy or wildcat

Electric Windlass

An anchor windlass that is powered with an electric motor

Horizontal Windlass

An anchor windlass with the main drive shaft oriented horizontally

Hydraulic Windlass

An anchor windlass that is powered with a hydraulic motor

Manual Windlass

An anchor windlass powered by hand with a handle

Topworks

The part of a vertical anchor windlass that is above deck.

Vertical Windlass

An anchor windlass with the main drive shaft oriented vertically

Windlass Chain

Chain that is manufactured specifically to run through an anchor windlass. It is manufactured so that each link of the chain is exactly the same size as all others certified by the ISO

Boating Equipment

Anode

A sacrificial metal, often zinc, that is meant to erode via electrolysis before more important metals installed on the boat below the water line like propellers and propeller shafts.

Bilge Pump

A pump located in the bilge of a boat or ship designed to pump any excess water that collects there overboard. Typically activated automatically with a float switch as an integral piece of safety equipment.

Ground Tackle

A collective term for the anchor rode and anchor combined.

Holding Tank

A tank on the boat that contains all waste water.

Interceptors

Small vertical blades mounted to the transom of a boat perpendicular to the surface of the water that deploy to generate lift on the back of the boat which can both stabilize the riding angle of the boat and help it get on plane faster.

Table Pedestal

A column that mounts to the deck and to a table to support the weight of a table.

Trim Tabs

Small surfaces mounted to the transom of a boat parallel to the surface of the water , used to change the angle of the boat as it runs through the water by angling the tab up or down with an actuator.

Electrical Systems

Cable Run

The complete length of electrical cable that connects a power source to a power consumer and back. For example, if a battery is 20-feet away from an electric motor it is powering, the cable run is 40=feet.

Float Switch

A switch that has buoyancy that activates when it begins to float in water, and deactivates when it is no longer floating.

Wire Gauge

The measure of a diameter of a wire; any of a series of standard sizes in which wire is made

 

General Boating Terms

Aft

At, near, or towards the stern of a boat.

Beam

The width of a boat at its widest point.

Capsize

When the boat turns on its side or upside down

Catamaran

A two-hulled boat, with the hulls side by side.

Displacement

The weight of water displaced by a floating vessel. The way to measure the weight of a boat in water.

Draft

The vertical distance from the lowest point of a boat to the surface of the water

Dry Weight

The weight of a boat out of the water

Freeboard

The vertical distance from the surface of the water to the gunwhale of the boat.

Heading

Intended direction of travel of a boat; where the bow is pointed.

Planing

The process of gliding easily through the water at high speeds with optimal running surface.

Running Surface

All parts of the boat that are in contact with the water while the boat is moving.

Wake

The waves created trailing a boat as it moves through the water

26-31__BoatTerminolo...

Lighting

Color Temperature

A way to describe the appearance of light emitted from a fixture or bulb. It is measured in degrees Kelvin (K) on a scale of 1,000 - 10,000

LED

Light-Emitting Diode.

Candela

A unit of measure for light intensity referring to the amount of light emitted by a lighting device in a particular direction

Lumen

A unit of measure for perceived light intensity referring to the total amount of light a light source emits

Navigation Lights

a set of lights, typically colored, shown by a boat or ship at night or in low-visibility weather to indicate its position and orientation, especially with respect to other vessels.

Running Lights

Lights required to be shown on boats underway at night.

 

Parts of a Boat

Aft Deck

The deck of a boat towards the stern.

Bilge

The lowest compartment of boat or ship.

Bow

The front of a boat.

Bow Sprit

a spar extending forward from a boat's bow

Bridge

An elevated location from which a large vessel, ship or yacht is steered and its speed controlled.

Bulkhead

A vertical partition separating compartments.

Chine

The intersection of the bottom and sides of the boat

Foredeck

The deck of a boat towards the bow.

Forepeak

The forward most internal compartment of a boat.

Galley

The kitchen area of a boat

Gunwhale

The upper edge of the side of a boat.

Head

The restroom area of a boat, ship, or yacht

Helm

The location from which you drive the boat, where the steering wheel, tiller, throttle and any associated equipment for steering are located.

Hull

The main body of a vessel

Keel

The centerline of a boat running for and aft; the backbone of a vessel.

Port Side

Left side of a boat

Rudder

A vertical plate or board attached to the bottom of a boat on a shaft used for steering a boat by directing water port or starboard as it is turned through the water.

Salon

Cabin area of a boat devoted to seating, often combined with a dining table.

Settee

A long seat with a back to accommodate several persons at once, typically built-in to the structure of the interior of the boat

Starboard Side

Right side of a boat

Stern

The back of a boat.

Topsides

The sides of a vessel between the waterline and the deck

Transom

Flat surface forming the stern of the boat, typically perpendicular to the surface of the water.

partsofaboat

Stabilizers

Boat Stabilizers

A system consisting either of a set of fins under the hull or a gyro inside the boat for the purpose of keeping the boat from rocking back and forth in swells.

Gyro Stabilizer

A stabilization system for boats that is mounted internally to the boat and uses a weighted flywheel to produce centrifugal force preventing the boat from rolling side to side in ocean swells.

Stabilizer Fin

A fin, or wing, attached to the bottom of the hull of a boat which pivots on a shaft to provide a stabilizing force preventing the boat from rolling side to side in ocean swells.

 

Thrusters

Bow Thruster

A device mounted in the bow of a boat designed to push the bow of the boat left or right, typically with a propeller that pushes and pulls water perpendicular to the direction the boat is pointing

Gearleg

The lower unit of a bow or stern thruster with internal gears to drive the propeller shaft. The propeller(s) and anode(s) are attached to the gearleg.

Stern Thruster

A device mounted in the stern of a boat designed to push the bow of the boat left or right, typically with a propeller that pushes and pulls water perpendicular to the direction the boat is pointing

Wipers

Pantograph Wiper

A pantograph wiper system involves two metal arms to connect one wiper motor to one wiper blade. In some cases, the arm is connected to two separate drive shafts coming out of the motor, and in others, one of the pantographic arms is on a stationary pivot while the other is connected to a single drive shaft. Pendulum wiper systems can clear more area of glass than pendulum wipers.

Pendulum Wiper

A single metal arm to connect the wiper motor to the wiper blade, sweeping the glass in a pie-shaped pendulum motion. Pendulum wipers are most commonly found on car wiper systems.

Wiper Arm

A metal arm connecting the drive shaft of a wiper motor to the wiper blade

Wiper Motor

Electric motor used to drive windshield wiper arms & blades

 

About the Author

Related

How to Install a Windshield Wiper System on your Boat

How to Install a Windshield Wiper System on your Boat

Windshield wipers are an integral piece of safety equipment on many powerboats and yachts. While man...

Read More >
 5 Things to Consider When Choosing an Operator’s Chair

5 Things to Consider When Choosing an Operator’s Chair

There are many options available when it comes to picking an operator’s chair, so narrowing it down...

Read More >
Common Questions About Sizing & Installing Sola-Cure Solar Blinds

Common Questions About Sizing & Installing Sola-Cure Solar Blinds

Sunshade-expert Peter Jones from Sola-Cure Marine Window Blinds answers common questions about selec...

Read More >

Post a Comment