1 Seamanship Chapter 2 The Boat

2 Learning Objectives This lesson acquaints you with: This lesson acquaints you with: identity of boat types identity of boat types their behavior in the water their behavior in the water practical information practical information buoyancy buoyancy stability stability basic maneuvering basic maneuvering

3 Construction Materials Materials Materials Steel Steel Aluminum Aluminum Wood Wood Ferro-cement Ferro-cement Fiberglass Fiberglass Molded Fiberglass, Kevlar, Carbon Fiber Molded Fiberglass, Kevlar, Carbon Fiber

4 Hull Types Displacement hull Displacement hull Semi-displacement Semi-displacement Planning hulls Planning hulls

5 Hull Designs

6 Displacement Hull

7 Planing Hull

8 Getting Up on a Plane

9 Hull Designs – Flat Bottom

10 Hull Designs – Round Bottom

11 Hull Designs – Vee Bottom

12 Hull Designs – Deep Vee

13 Hull Designs – Multihulls

14 Hull Designs – Cathedral

15 Propulsion Human powered Human powered Wind – sails Wind – sails Engines Engines

16 Propellers

17 Propeller Walk

18 Propellers Selection

19 Rudders

20 Turning

21 Turning in Own Length Twin Screws

22 Thrusters Bow Thruster Stern Thruster

23 Inboard Single Screw Maneuvering

24 Outboard and Inboard/Outboard Maneuvering

25 Directed Thrust

26 Twin Screw Maneuvering

27 Twin Screw Advantage

28 Jet Drive

29 Jet Drive

30 Buoyancy Floatation Aid 100lb

31 Gravity and Buoyancy

32 Stability

33 Righting Moment

34 Stability Hazards

35 Chapter 2