Module 3 – Naval Skills - PowerPoint Presentation

Slide1

Module 3 – Naval Skills

Section 2 – Ship Structure

Chapter 1 – Ship Construction

Unit 1 -

Ship Construction and Damage ControlSlide2

Demonstrate knowledge of Navy ships, their construction, characteristics and damage controlSlide3

Define terms that describe a ship’s structureDescribe the decks and spaces of a U.S. Navy vessel

Describe the superstructure of a U.S. Navy vesselDescribe the watertight integrity of a Navy shipSlide4

CPS Key Term Questions 1 - 22Slide5

Keel -

The backbone of the hull located on the centerline like an I-beam running the full length of the bottom of the ship

Gunwale -

The upper edge of the side or bulwark of a

vessel

Roll -

A ship rolls from side to

sideSlide6

Pitch -

A ship pitches when it goes up and down fore and aft

Yaw -

A

ship yaws when the bow swings to port and starboard because of wave

action

Draft -

The distance from the keel to the

waterline; the depth

to which a vessel is immersed when bearing a given

loadSlide7

Compartment -

Rooms of a ship

Head (ship compartment) -

Bathrooms

on a

ship

Wardroom -

The dining area for commissioned

officers

Stateroom -

A private room or compartment on a

shipSlide8

Scupper -

A drain at the edge of a deck exposed to the weather, for allowing accumulated water to drain away into the sea or into the bilges

Superstructure -

Any deck above the main deck, forecastle deck, or poop

deck

Weather deck -

The deck or all parts of a deck exposed to the

weatherSlide9

Foremast -

The mast nearest the bow in vessels having two or more masts is the foremast

Mainmast - The second mast from forward in ships having two or more masts is the

mainmast

Pigstick -

A

slender vertical extension above the mast from which the ship’s

commission

pennant is

flownSlide10

Watertight i

ntegrity - The soundness of a ship’s construction which prevents leakage

Stack -

Supplies

air to the main propulsion engines and removes exhausts and hot gases from

them

Jackstaff -

A

short flagpole at a ship's bow, on which a jack is

flownSlide11

Collision

bulkhead - A strong watertight bulkhead at the after end of the forepeak tank

List -

L

ean

to port or starboard; careening, or leaning to one side, as of a ship

Trim -

B

e

“down” by the head or stern; the difference between the forward and aft draftsSlide12

Based on your current knowledge, can you name and describe decks and compartments of a Navy ship?Slide13

CPS Lesson Questions 1 - 2Slide14

Ship Structure

Hull is the main body of a ship.

Hull

Keel

Keel

is the

backbone of the hull located on the

centerline running the full length of the bottom of the ship.Slide15

Ship Structure

Transverse frames are girders attached to the keel run athwartship and support the watertight skin or shell plating, which forms the sides and bottom of the

ship.

Longitudinal frames

are

structural frames that run fore and

aft.Slide16

Ship Structure

Double bottom is a honeycomb structure formed by the longitudinal and athwartship frames in the bottom of the shipSlide17

Ship Structure

These spaces between the inner and outer bottoms are formed when plating covers the honeycomb, which may be used for fuel and water stowage.

Tanks or BridgesSlide18

Ship Structure

The top of

the main hull is called the main deck.

Main Deck

Gunwale

Gunwale

(

pronounced gun’el or deck-edge

) is the intersection

of the main deck with the shell or side

plating.Slide19

Ship Structure

A ship rolls from side to side.

A ship pitches when it goes up and down fore and aft.A ship yaws when the bow swings to port and starboard because of wave action.

Rolls, Pitches, and YawsSlide20

Ship Structure

Most warships built today have

unarmored hulls, while many ships of the last century had

armored hulls.

USS Vella Gulf

(CG 72)

USS Iowa

(BB 61)Slide21

Ship Structure

Waterline

is

the

part of the outside of a ship's hull that is just at the water level

.

WaterlineSlide22

Ship Structure

Draft is the distance from the keel to the

waterline.The red area on the model represents the ship's draft.Slide23

3 - 4Slide24

Ship Structure

The floors of a ship are called decks.

They divide the ship into layers and provide additional hull strength and protection for inner spaces (rooms

).

DecksSlide25

Ship Structure

Compartments are the rooms of a ship and are sometimes called rooms, such as:

Wardroom - officer’s dining room

Officers’

staterooms - officer’s bedrooms

Engine room Slide26

Ship Structure

The wardroom is the dining area for commissioned officers.

DDG

SSNSlide27

Ship Structure

Stateroom is a private room or compartment on a ship

.

Mess deck

is a dining

area for enlisted

crewmembers.Slide28

Ship Structure

Berthing compartments are the living quarters for enlisted crew members.

Officers country is the living spaces of officers

.

Heads

are the bathrooms on the ship.Slide29

Ship Structure

Compartment numbers are assigned according to a standardized system that identifies all spaces aboard a ship.

Example: 2 - 175

-

7

-

A

Second deck

Frame number

Fourth compartment to

starboard from centerline

Compartment usage (

stowage)Slide30

Ship Structure

Cargo ship compartments and the main storage spaces of all ships are called holds.

Holds are normally larger in merchant ships than in naval combatants or civilian passenger ships.

Complete decks

are decks

that extend throughout the ship from side to side and stern to stern.Slide31

Ship Structure

The uppermost complete deck that runs continuously from bow to stern is the main deck.

Main DeckSlide32

Ship Structure

The second, third

, and fourth decks are complete decks below the main deck numbered in sequence from the main deck down.

On an aircraft carrier, the

uppermost

complete deck is the

flight deck

.Slide33

Ship Structure

The hangar deck is the main deck on aircraft carriers on which aircraft are stowed and serviced.Slide34

Ship Structure

Forecastle deck is a partial deck at the bow above the main deck:

At midships it becomes the upper

deck

At the stern of a ship it is the

poop

deckSlide35

Ship Structure

Well deck is the

main deck areas between the forecastle and poop decks

Half deck

is any

partial deck between complete

decks

Platform

decks

are

the partial decks below the lowest complete

deckSlide36

Ship Structure

Bulwarks is a sort of low solid steel

fence along the gunwale of the main deck.

Scuppers

are

rubber or metal drains fitted in the bulwarks that allow water to run off the deck during rain or heavy

seas.

Bulwarks

ScuppersSlide37

Ship Structure

A superstructure deck is any deck above the main deck, forecastle deck, or poop deck.Slide38

Ship Structure

These decks are called levels. The first level above the main deck is the 01 (pronounced oh-one), the second the 02, and so on.

Superstructure DecksSlide39

Ship Structure

The superstructure deck includes all structures above the main deck

.

NOTE

: The flight deck on a carrier is the 04 level, not the main deck.

Main DeckSlide40

Ship Structure

Included in the superstructure may

be the:Wheelhouse

Bridge

Signal bridge

CIC

Radio shack

CO’s

sea cabin

Superstructure deck levels

may

be called

other names related to their

uses as mentioned above. Slide41

5 - 6Slide42

Ship Structure

The mast tops the superstructure and will have at least one vertical pole fitted with a horizontal yardarm that extends above the ship and carries flag halyards and navigational and signal lights.

MastSlide43

Ship Structure

On most ships, the mast will

contain:Electronic devices

Radar antennas

Radio aerials

Meteorological instrumentsSlide44

Ship Structure

The mast nearest the bow in vessels having two or more masts is the foremast.

ForemastSlide45

Ship Structure

It is usually taller than the foremast, making it normally the highest structure above the main deck.

Mainmast

The second

mast from forward in ships having two or more masts is the

mainmast

. Slide46

Ship Structure

Truck is the top of the mast.

Pigstick is a slender vertical extension above the mast from which the ship’s commission pennant is flown.Gaff is a

spar extending abaft the mainmast from which the national ensign is flown when the ship is Underway.Slide47

Ship Structure

When a Navy ship is at anchor or moored, it flies the jack on the jackstaff.

Union Jack

JackstaffSlide48

Ship Structure

When in port or at anchor, a Navy ship flies the national ensign from the flagstaff at the stern from 0800 to sunset.

FlagstaffSlide49

Ship Structure

The Navy Jack is now raised in lieu of the Union Jack until the war on terrorism is over.Slide50

Ship Structure

The stack supplies air to the main propulsion engines and removes exhausts and hot gases from

them.

StackSlide51

Ship Structure

Nuclear-powered ships do not need stacks since

their reactors require no air for combustion, and

they produce

no smoke

or gas.Slide52

Watertight Integrity

To prevent the spread of flooding, watertight bulkheads

are built in naval ships to divide the hull into a series of watertight compartments.

Watertight IntegritySlide53

Watertight Integrity

Holds are the compartments of cargo ships, and the main storage spaces of all ships.

Holds

The more compartments a ship has, the more secure it will be from flooding.Slide54

Watertight Integrity

Flooding can cause a ship to:

List - lean to port or starboard

Lose trim

-

be “down” by the head or stern

Capsize

-

tip over, or sinkSlide55

Watertight Integrity

Access through bulkheads is provided by doors and through decks by hatches.

Hatch

DoorSlide56

Watertight Integrity

These are tanks located at the extreme bow and stern of the ship and are used for trimming the ship.

Forward (or Forepeak) and After Peak Tanks

After Peak Tanks

Forepeak TanksSlide57

Watertight Integrity

A collision bulkhead is a

strong watertight bulkhead at the after end of the forepeak tank.If one ship rams another head on, the bow structure would collapse, hopefully, somewhere forward of the collision bulkhead, thus preventing flooding of compartments aft of it.Slide58

Watertight Integrity

Maintenance of watertight integrity is a function of damage control.

A

stuffing tube

is a cylinder

plugged

with

watertight

filler

material to

prevent leakage.

Stuffing TubeSlide59

Watertight Integrity

All watertight doors and hatches

carry markings that determine when they may or may not be opened.In this case, the “Z” (condition

ZEBRA

) indicates this door is normally kept closed at all times

.Slide60

How is watertight integrity

maintained on a Navy ship?Slide61

CPS Lesson Questions

7 - 8Slide62