Class Plan v Chapter One Know Your Boat

Class Plan v Chapter One: Know Your Boat v Chapter Two: Before You Get Underway v Chapter Three: Operating Your Boat Safely v Chapter Four: The Legal Requirements of Boating v Chapter Five: Boating Emergencies v Chapter Six: Enjoying Water Sports

Chapter One Know Your Boat

Key Topics Parts of a Boat Types of Boat Hulls Length of a Vessel Types of Engines Personal Watercraft (PWC) Sailboats

Objectives You should … ► be able to identify the basic parts of a boat, a PWC, and a sailboat. ► be able to identify the different types of hulls and their performance characteristics. ► be able to identify the different kinds of engines commonly found in recreational vessels and their uses.

The Many Partsredofandagreen Boat sidelights port bow all-round white light hull gunwale starboard stern cleat propeller

The Many Parts of a Boat (cont. ) Transom: Vertical surface at the back of the hull

Types of Boat Hulls Displacement hulls are designed to cut through water with very little propulsion. Planing hulls rise up and glide on top of the water when enough power is supplied.

Types of Boat Hulls (cont. ) How Planing Hulls Operate Displacement Mode • A planing hull, when operated at very slow speeds, will cut through water like a displacement hull.

Types of Boat Hulls (cont. ) Plowing Mode • As speed increases, planing hull will have raised bow, reducing operator’s vision and throwing very large wake.

Types of Boat Hulls (cont. ) Planing Mode n Boat is in planing mode when enough power is applied so that hull glides on top of the water.

Types of Boat Hulls (cont. ) There are four basic hull shapes: Hull Shapes Flat Bottom Hull Deep Vee Hull Advantages Disadvantages Planing hull with shallow draft—good Rides roughly in for fishing in small choppy waters lakes and rivers Planing hull gives smoother ride in rough water Takes more power to move than a flat bottom hull—may roll or bank in sharp turns

Types of Boat Hulls (cont. ) Hull Shapes Round Bottom Hull Multi-Hull Advantages Typical displacement hull that moves easily through water even at slow speeds Another displacement hull— has greater stability because of wide beam Disadvantages Has a tendency to roll unless it has a deep keel or stabilizers Needs large area when turning

Length of a Vessel A vessel’s length dictates equipment necessary to comply with federal and state laws.

Length of a Vessel (cont. ) Some states have laws that refer to vessel lengths as “classes. ” (The USCG no longer uses these designations). • Less than 16 feet (Class A) • 16 feet to less than 26 feet (Class 1) • 26 feet to less than 40 feet (Class 2) • 40 feet to less than 65 feet (Class 3)

Engine Types—Outboards • Portable, self-contained unit consisting of an engine, gear case, and propeller that is attached to the transom. • May be four-stroke design, or conventional two-stroke engine. • Steering controlled by tiller or steering wheel. • Have more power pound of weight than

Engine Types—Inboards • Mounted inside hull’s midsection or in front of transom • Four-stroke automotive engine adapted for marine use • Two-stroke engine on PWCs • Steering is controlled by rudder behind the propeller (except PWCs and jet drive boats)

Engine Types—Stern Drives • Known as inboard/outboards (I/O). Quieter and more fuel-efficient engines. • Mounted inside vessel and attached through transom to drive unit • Four-cycle automotive engines adapted for marine use • Steering controlled by the outdrive, which

Engine Types—Jet Drives • Jet drives propel vessel by jet of water forced out back of vessel. Directing jet steers vessel. • PWCs are the most common type of vessels that use a jet drive.

Engine Types—Jet Drives (cont. ) • May power larger vessels (jet boats). Commonly used for vessels designed for shallow water. Jet boats can have inboard or outboard jet drives.

Personal Watercraft (PWC) • PWCs are small vessels that use an inboard jet drive as primary source of propulsion. • The U. S. Coast Guard includes PWCs in the group of inboard vessels less than 16 feet in length. • PWCs are subject to same laws and

Personal Watercraft (cont. ) steering control safety lanyard starboard port

Personal Watercraft (cont. ) bow stern steering nozzle draft impeller drive shaft jet pump intake grate

Sailboats mast headsail (jib) Sailboats basically consist of four components: mainsail • Hull boom • Rigging hull keel rudder • Keel or centerboard