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

3. Chapter One
Know Your Boat

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

5. 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.

6. The Many Parts of a Boat red and green sidelights bow port
all-round white light
hull
gunwale
stern
starboard
cleat
propeller

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

8. 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.

9. 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.

10. 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.

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

12. Types of Boat Hulls (cont.)
There are four basic hull shapes:
Hull Shapes
Advantages
Disadvantages
Flat Bottom Hull
Planing hull with shallow draft—good for fishing in small lakes and rivers
Rides roughly in choppy waters
Deep Vee Hull
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

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

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

15. 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)

16. 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 per
pound of weight than
an inboard engine.

17. 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)

18. 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 swivels like an outboard engine to direct propeller thrust

19. 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.

20. 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.

21. 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 requirements of any other vessel plus some specific to PWCs.

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

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

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