Washington State Safe Boating Course

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CHAPTER 1: The Boat

1.1 BOAT TERMINOLOGY

Specific terms are used to describe the various parts of a boat. Each end and side of the boat, its length and width, and its accessories have specific terms. Every boater should be familiar with the following terms before operating a boat.

BOAT TERMINOLOGY
 

1.2 BOAT LENGTHS

Boats are identified in classes by length. Federal and state laws require certain equipment aboard boats, depending on the class or length of the boat.

A boat's length is measured along its centerline from the outside of the bow to the outside of the stern. This measurement does not include any attachments, such as swim platforms or wakeboard towers or outboard engines.

Class A: Less than 16 ft.

Class A: Less than 16 ft.

Class 1: Between 16 and 26 ft.

Class 1: Between 16 and 26 ft.

 
Class 2: Between 26 and 40 ft.

Class 2: Between 26 and 40 ft.

Class 3: Between 40 and 65 ft.

Class 3: Between 40 and 65 ft.

 

1.3 BOAT HULL DESIGNS AND USES

Boat bottoms or "hulls" come in a variety of shapes and sizes. Each hull type is designed to either displace or plane through the water. Sailboats and large cruise ships use displacement hulls because the combination of their size (weight) and power they will not allow them to plane. On the other hand, smaller powerboats are typically built with planing hulls that are designed to rise up and ride on top of the water at higher speeds than displacement hull boats.

 

1.3.1 HULL TYPES

FLAT BOTTOM

Flat bottom

Flat bottom boats are great for fishing. They are generally designed for slow speeds and calm water.

 

ROUND BOTTOM

Round bottom

Round bottom boats, such as canoes, move smoothly through the water with little effort. Boaters must be cautious when loading, entering and exiting a round bottom boat. Due to the hull design, these boats roll very easily.

 

DEEP-V HULL

Deep-V hull

The Deep-V hull is the most common hull type for powerboats. These boats move through rough water at higher speeds and give a smoother ride than flat bottom or round bottom boats. They also require larger engines than flat bottom or round bottom boats.

 

MULTI-HULL

Multi hull

Multi-hull boats are the most stable of the hull types. These boats require plenty of room to steer and turn. Catamarans and pontoon boats use the multi-hull design.

 

1.3.2 ENGINE TYPES

OUTBOARD

Outboard

Outboard engines are mounted on the transom of the boat. The steering of outboards can be controlled by a hand tiller or a steering wheel, which moves the entire engine when steering is adjusted.

In the past outboards were typically two-stroke engines, but manufacturers have since switched to four-stroke engines. Two-stroke engines require oil to be mixed with gasoline to lubricate the engine and four-stroke engines require the oil and gasoline to be separate. Four-stroke engines, in addition to running quieter and smoother, are more environmentally friendly as the exhaust they emit is virtually smokeless compared to two-strokes.

 

Inboard

Inboard

Inboard engines are typically four-stroke automotive engines that are modified for use on the water. An inboard engine is mounted inside the hull of the boat and powers the driveshaft, through the boat bottom, which is connected to a propeller. Steering is controlled by a rudder, positioned either directly behind or to the side of the propeller.

 

Stern Drives

Stern drive

Sterndrives are sometimes called inboard/outboards (I/O) because they have features found on both inboard and outboard engines. Similar to inboards, sterndrives use four-stroke automotive engines that are modified for use on the water. Sterndrive engines are mounted inside the boat through the transom, and power the drive train, which is connected to the propeller. Similar to outboards, the sterndrive moves when the steering wheel is adjusted.

 

1.4 BOAT CAPACITIES

Be aware of the small-vessel regulations pertaining to engine power and load capacity. Federal law mandates that boats of less than 20 feet in length must have a capacity plate in the steering or helm area. As a boat owner or operator, you should know the recommended gross load capacity that can be safely carried in the hull concerned:

  1. It includes the total weight of persons, equipment, stores, fuel, engine assembly and steering controls.
  2. It is indicated with the "equivalent number of adult persons."
  3. It is indicated on a capacity plate, which, when fitted, is permanently attached to the pleasure craft.
Capacity Plate

THE CAPACITY PLATE ALSO INDICATES THE "RECOMMENDED SAFE LIMITS OF ENGINE POWER" FOR THE HULL CONCERNED. IT MAY NEVER BE EXCEEDED. THIS CALCULATION IS BASED ON THE RECOMMENDED GROSS LOAD CAPACITY FOR OUTBOARD POWERED BOATS ONLY.

1.4.1 OVERLOADING OR OVER-POWERING

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An overloaded boat or over-powered boat can be extremely dangerous. An over-powered boat may cause the stern to sit lower in the water, making the vessel susceptible to being swamped by its own wake or that of a passing boat. Similarly, too much weight in the stern or the bow will make the vessel prone to swamping. Additionally, it is important to spread the load evenly throughout the vessel. Too much weight on either side will make the vessel less stable and more apt to capsize. Take extreme caution in loading your vessel properly.

BEWARE OF BAD WEATHER! TAKE MUCH LIGHTER LOADS IN POOR WEATHER CONDITIONS TO ENSURE BOAT STABILITY.

 
 
 

1.4.2 SAFE LOADING GUIDELINES (FOR SMALL BOATS)

To determine the maximum horsepower capacity for small, flat-bottomed boats, multiply the boat length (ft.) by the transom width (ft.) and compare the resulting value to the following chart:

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EXAMPLE
BOAT LENGTH = 12 FT.
BOAT WIDTH = 4FT.
12 FT. X 4 FT. = 48
MAX HP OF 15
LENGTH X WIDTH = MAX HP
35 FT OR LESS 3
36 - 39 FT 5.5
40 - 42 FT 7.5
43 - 45 FT 10
46 - 52 FT 15
 

1.4.3 PERSON CAPACITY

Overloaded/Properly loaded

Manufacturers take a number of variables into account when determining the maximum person capacity for a boat (which is displayed on the capacity plate). The maximum person capacity is a guideline. Keep in mind that most manufacturers assume an average weight per person of 150 lb. If you have passengers over 150 lb., you should adjust the maximum person capacity accordingly.

1.5 HULL IDENTIFICATION NUMBER (HIN)

All pleasure craft manufactured since 1972 are permanently marked with a Hull Identification Number (HIN), which is the 12-character serial number of your vessel. To identify your vessel, HINs are marked at the stern on the starboard (right) side, or as close to that area as possible. You must NOT deface or alter the HIN.

THE HIN INDICATES THE BOAT'S

HIN
  • Manufacturer
  • Serial number
  • Month and year of production
 

1.6 BOAT REGISTRATION REQUIREMENTS

1.6.1 BOAT REGISTRATION AND NUMBERING

All powered boats must be registered. Some other boats must be registered as well.

FEDERALLY DOCUMENTED VESSELS

Large recreational boats can be federally registered with the U.S. Coast Guard.

RECIPROCITY REGULATIONS

All states allow boats registered in another state to operate on state waters for a period of time. Eventually, owners must transfer boat registration to the state of principal use.

1.6.2 WASHINGTON REGISTRATION REQUIREMENTS

Washington State Parks & Recreation Commission:
The Washington State Parks & Recreation Commission is responsible for regulating the state boating laws of Washington State.

1.6.2.1 REGISTRATION

All vessels propelled by machinery, including gasoline, diesel and electric motors, and principally operated on Washington State waters must be registered and issued a Washington Registration Card and Number by the state, which can be obtained through the office of vehicle licensing or Auditor in the boat owner's county. Exceptions for the boat registration requirements include:

  • Non-motorized vessels, not including sailboats.
  • Vessels registered in another state or country using Washington waters (non-federal) for 60 days or less.
  • Vessels measuring less than 16 feet in length propelled by a motor that is no greater than 10 horsepower operated exclusively on non-federal waters.
 

1.6.2.2 CERTIFICATE OF TITLE

All vessels requiring registration in the state of Washington must also be titled. A boat title may be obtained by contacting the Washington Department of Licensing.

NOTE On the reverse side of the Certificate of Title there is an application for the transfer of ownership.

 

1.6.2.3 CERTIFICATE OF NUMBER

Boat owners must have at least a temporary Registration card before they can operate in state waters. Upon receipt of the Registration Card please note the following:

  • It must be signed and carried onboard when operating the vessel.
  • The Department of Licensing must be notified within 15 days if the boater changes residences.
  • The Department of Licensing must also be notified within 15 days if the vessel is either destroyed, lost, stolen or abandoned.
  • The Washington registration period is from July 1 through June 30 each year.
  • Washington registration and decals are valid for 1 year.

1.6.2.4 REGISTRATION FEES

Boat Registration Fees
Description Fee Other applicable fees
Annual vessel registration fee $19.25 ($20.25 starting January 1, 2008) Subagent fee (if filing at any licensing office except a county auditor): $4
Vessel excise tax: 0.5% of taxable value of vessel ($5 minimum )

Vessel owners may submit registration or title applications as well as fees by mail to the following:

Department of Licensing
Vessel Licensing
P.O. Box 9909
Olympia, WA 98507-8500

More information with regards to registration and titling applications may also be obtained by contacting your local county auditor or the Department of Licensing at 1-360-902-4089.

Successful registration results in a registration card along with a registration decal for each side of the vessel. Physical boat numbers must be purchased separately. Boat numbers must:

  • Be affixed on both sides of the bow;
  • Be block letters, three inches high and contrasting with the color of your boat;
  • Letters must be separated from the numbers by a space or a hyphen;
  • Read from left to right.

For example: WN 1234 BX or WN-1234-BX. This is a federal and state requirement.

The decal which is provided to you by the state must be displayed on the stern side of the registration numbers on both sides of the vessel.

Lack of the correct documentation will result in delays and fines.

Make sure all boats are properly marked and documented. It's important to keep your papers with the boat – be particularly aware when transferring ownership of your vessel.

CHAPTER 1 SUMMARY

AFTER READING CHAPTER 1, YOU SHOULD HAVE KNOWLEDGE OF:

  • Terms that are used to name/describe the parts of a boat
  • Various boat classes as identified by length
  • Types of boat hulls and their characteristics
  • Types of engines
  • Boat capacities
  • What is a Hull Identification Number and what it indicates
  • State boat registration regulations, requirements, allowances and procedures

Washington State Safe Boating Course

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USCG NASBLA
All course material contained herein is approved by the National Association of State Boating Law Administrators and recognized by the U.S. Coast Guard Office of Boating Safety.