NAVIGATION Flashcards
What does DR stand for?
Dead Reckoning
What does GMT stand for?
Greenwich Mean Time
What does DIW stand for?
Dead In Water
What is the difference between True Bearing and Relative Bearing?
True Bearing- any bearing in relation to true north given from 000 to 359 degrees
Relative Bearing- any bearing in relation to the ship given from 000 to 359 degrees
From what and where are the navigation lights operated from?
Telltale Panel on the bridge behind the helm
How many navigation lights are there?
5
What are the navigation lights called and what are their color?
- Port Running Light- RED
- Starboard Running Light- GREEN
- Forward Masthead Light- WHITE
- Aft Masthead Light- WHITE
- Stern Light- WHITE
Name one thing used during a Man Over Board:
Oscar Flag, Search Light, Life Ring, Smoke Float
What are the stands called that house gyro repeaters for true bearing and fixed compass card for relative bearing?
Pelorus Stands
What is the name of he tool that QM’s use in conjunction with the pelorus to obtain bearing to visual navigation aids during transits through restricted waters?
Telescopic Alidade
What is the job of the QMOW?
To maintain navigation plot and be the eyes, ears, and voice of the Navigator when he is not present
What is the job of the Conning Officer?
To verbally drive the ship by giving rudder orders and speed orders to the helmsman and lee helmsman
What day shapes are flown for restrictive maneuvering?
BALL-DIAMOND-BALL
What are the lights in port?
- Flag Staff
- Jack Staff
- Aircraft Warning Light
What are the day shapes for Vessel at Anchor?
BALL
What are the day shapes for Vessel Aground?
BALL-BALL-BALL
What is the Starboard Pennant?
Senior Officer Present Aboard (SOPA)
BRAVO
Refueling/AMMO
ALPHA
Divers
KILO
Aloft
KILO 1
Over the side
KILO 3
Aloft and Over the side
PREP
Preperation for COLORS and UNREP
OSCAR
Man Overboard
PAPA
Personnel Recall
QUEBEC
Boat Recall
ROMEO
Ready for UNREP
GOLF
Guide Ship
Who calls abandon ship?
CO
What information is given out during abandon ship?
- Direction of nearest land; Friend/Foe
- Water Temp
- Weather
- Survivability
- Wind Speed
What are the 3 types of recovery?
HELO
RHIB
Shipboard
Describe Advance Transfer:
- 2 points
- Where you start and where you end
What are the day shapes for Vessel not in command?
BALL-BALL
What is the day shape for Vessel Constrained by a draft?
Cylinder
What are the lights for Man Overboard?
Red on Red Flashing
What is a marine sextant?
tool used by QM’s to obtain LINES OF POSITION from celestial bodies
What is a fathometer?
measures depth of water
What are the six rules of Dead Reckoning?
- Every Course Change
- Speed
- Hour on the Hour
- Lines of position
- Running fix
- 2 DRs every fix
Describe IALA:
International Association of Lighthouse Authority;
2 systems; Alpha/Bravo
US uses BRAVO
What is the responsibility of the OOD?
In charge of safe navigation of the ship
Whats the responsibility of the helm?
Steers
Whats the responsibility of the Lee Helm?
indicates speed
What is the responsibility of the BMOW?
- Maintains order and discipline of enlisted personnel on the bridge
- Passes word on 1MC
Whats the responsibility of lookouts?
Report everything they see or hear
What is a barometer?
Measures humidity
What is a cyclometer?
Measures the moisture in the air
What are pelorus stands?
Stands used to house gyro repeaters (true) and fixed compass cards (relative)
What are the flags flown during UNREP?
Golf
Romeo
Bravo
Papa
What is another term for the Ensign that is flown from the main truck while underway?
The steamer
When are the 3 times the commisioning pennants aren’t flown?
PRECOM, DECOM, WHEN ADMIRAL FLAG IS FLYING
Which line runs North and South?
Longitude
What does GPS stand for?
Global Positioning System
What is a clinometer?
Measures ships list
What is the 1st substitute flag used for?
Absence of Flag Officer
What is the 2nd substitute flag used for?
Absence of Chief of Staff
What is the 3rd substitute flag used for?
Absence of Commanding Officer
What is the 4th substitute flag used for?
Absence of Civil Official