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ESWS SUPPLY > ESWS NAVIGATION > Flashcards

ESWS NAVIGATION Flashcards

1
Q

Who is the Navigator and what is his responsibility?

A

CDR CONLAN

  • to receive all orders relating to navigational duties directly from the CO.
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2
Q

Who is the ANAV and what is his responsibility?

A

LCD WHELAN

  • assist the Navigator in all aspect of navigation, piloting and administration of navigation.
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3
Q

What is Navigation’s mission?

A

To safely navigate the ship through inland and international waters.

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4
Q

What are the 4 Primary areas of Navigation?

A

• Piloting
• Electronic Navigation
• Celestial Navigation
• DR

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5
Q

How many feet are in 1 Nautical Mile?

A

6,076.1 ft

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6
Q

What is the Deck Log Instruction?

A

OPNAVINST 3100.7C

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7
Q

How long are Deck Logs kept onboard?

A

12 months

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8
Q

By when do the deck logs have to be mailed by?

A

10th of every month

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9
Q

Where does the deck logs get mailed to?

A

Naval History and Heritage Command in Washington, DC

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10
Q

What is Navigation’s primary Fix source?

A

GPS

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11
Q

What does GPS stand for?

A

Global Positioning System

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12
Q

What does VMS stand for?

A

Voyage Management System

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13
Q

What does DR stand for?

A

Dead Reckoning.

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14
Q

Why is DR important?

A

Helps identify any potential hazards that the ship may encounter

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15
Q

What are the 6 rules of DR?

A

Every Course Change
• Every Speed Change
• Every L.O.P
• Every Running Fix
• Every Hour
• Plot Label Draw

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16
Q

What program does quartermaster use to compute sunrise and sunset?

A

STELLA

17
Q

What does STELLA stand for?

A

System to Estimate Latitude and Longitude Astronomically

18
Q

What does L.O.P stand for?

A

Line of Position

19
Q

Define Set and Drift

A

⁃ Set: The direction the ship is being pushed off course

⁃ Drift: The speed the ship is being pushed off course in knots.

20
Q

Define Shoal Water?

A

Water that is too shallow for the ship

21
Q

What is CVN 77’s safety depth?

A

50ft

22
Q

What is drag circle?

A

The hawspipe to pelorus plus length of chain

23
Q

What is swing circle?

A

Length of ship plus length of chain

24
Q

What is the length of the ship?

A

1104ft 9in

25
Q

What are the Rules of the Road?

A

A manual used to determine how to safely navigate through inland and international waters

26
Q

Who publishes the Rules of the Road?

A

The Coast Guard

27
Q

What is the ship’s call sign?

A

NGHW

28
Q

What is Chart 1?

A

A publication containing all symbols found on charts

29
Q

What is NTP 13B?

A

Honors and Ceremonies

30
Q

What is Pub 150?

A

World Port Index

31
Q

What is Pub 151?

A

Distance Between Ports

32
Q

Name the Arc of Visibility for the following lights

A

⁃ Masthead light: 225 degrees

⁃	Port and starboard running lights: 112.5 degrees each

⁃	Stern light: 135 degrees

(NOTE: The total of the masthead light and the stern light=360°)

33
Q

Define DIW

A

Dead in the Water. No means of propulsion

34
Q

What does SOPA mean?

A

Senior Officer Present Afloat.

When two ships are moored to the same pier, SOPA is determined by who has the most senior officer embarked.

35
Q

Define Lines of Latitude

A

Lines of parallels that run East to West and are measured North to South
(0-90 degrees)

36
Q

What is the reference line for all lines of latitude?

A

The Equator

37
Q

Define lines of Longitude

A

Lines of Meridians that run North to South and are measured East to West
(0-180 degrees)

38
Q

What is the reference line for all lines of Longitude?

A

The Prime Meridian

39
Q

Name the stations for QM’s during Sea and Anchor

A
  • Nav Evaluator - Responsible for making course change recommendations to the Conning Officer to keep the ship on its Plan of Intended Movement (PIM) track based off information given by the Nav Plotter• Nav Plotter - Plots the ship’s position based off bearings given to the Bearing Book
Recorder• Bearing Book Recorder - Records bearings received from the Bearing Takers• Bearing Taker - Uses a telescopic alidade to get true bearing from aids to navigation• Deck Log Recorder - Responsible for recording every occurrence during sea and anchor detail including set and drift every three minutes• Signal Bridge Personnel - Responsible for all flag hoist during sea and anchor

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