Navigation Flashcards
VMS
Voyage management system
GPS
Global positioning system
True bearing
Bearing relative to true north
Relative bearing
Bearing relative to the Ship
Fix
The ships position determined without reference to any former position
D.R.
Dead reckoning
Why is DR important?
It helps determine possible encounters with hazards to navigation.
Ex: Buoys, fish Havens and shipwrecks
SET
The direction the ship is being pushed off course
Drift
The speed at which the ship is being pushed off course
Rules of the road
Manual used to determine how to safely navigate through inland an international waters
Who publishes the rules of the road?
Coast Guard
day shapes
Shapes used to communicate to other ships our circumstance so that they can make measures to keep safe
The night time equivalent to ball?
Red light
What is the nighttime equivalent to diamond?
White light
DIW
Dead in the water
Who orders abandon ship?
CO
Arc of visibility for the mast light?
225 degrees
What is the arc visibility for the port and starboard running lights?
112.5 degrees each
What is the arc of visibility for the stern light?
135 degrees
How many bouyage systems are there?
2
What are the names of bouyage systems?
Lateral and cardinal
COLREGS
Collision regulations at sea
What do COLREGS dictate?
The lines of inland and international waters
SOPA
Senior officer present a float
Latitude
Lines that run east to west
Measured north to south
Longitude
Lines that run north to south are measured east to west.
Reference for all lines of latitude?
The equator
Reference for all lines of longitude?
The prime meridian
GMT
Greenwich mean time
Define GMT
Time based upon the Greenwich Meridian
How many times zones are there?
24
How many time zone designators are there?
25
What is the time zone designator?
- Location to GMT, and
* Helps determine local time is for a certain area
Which time zone designator is NOT used?
Juliet
What is our primary means of navigation?
GPS
NAV Evaluator
- Collects info from the Nav Plotter
* Makes course changes for the CONN
Nav plotter
- Collects info from Bearing Book Recorder
* Uses info to plot position of the ship.
Bearing book recorder
• Records bearings from the bearing takers
Bearing taker
• Uses a telescopic alidade to get true bearing
Deck log recorder job?
How often do they record set and drift?
- Records every occurrence during sea and anchor detail
* Every 3 minutes
Signal bridge personnel
• Flag hoisting for sea and anchor.
Navigator
- Maintains safe navigation of the ship.
- Advises the CO, TAO, and OOD as to the ships movements
- Supervises navigation when in restricted waters or during general quarters
Location of bridge
08
Location of signal bridge
09
Officer of the deck
- In charge of everyone on the bridge
- Gives permission to execute operations and drills.
- Coordinates with TAO and EOOW
Conning officer
- Gives orders to helmsmen/Lee helmsmen
* Determines course and speed changes
Junior officer of the watch
- Maintains coms with other vessels
* Watches radars and AIS
Quartermaster of the watch
- Eyes and ears of the navigator when he’s not on the bridge.
- Direct assistance to the OOD in maintaining safe navigation
What are the ways quartermasters can communicate visually?
- Flag hoist
- Flashing light
- Semaphore
How many searchlights do we have on board?
6
How many flag bags do we have onboard?
2
Alfa
Divers
Bravo
Transferring fuel/ammo
Fox trot
Fixed wing flight operations
Golf
Guide ship
Hotel
Hilo OOD
India
Mooring along side
Kilo
A loft
Lima
HERO conditions
Oscar
Man overboard
Papa
Personnel recall
Romeo
Replenishment at sea
Uniform
Anchored
Flag 5
Breakdown
1st substitute
Absent admiral
2nd substitute
Absent chief of staff
3rd substitute
Absent captain
4th substitute
Absent civilian official