Term
|
Definition
- Minimum of 2 can determine position
- 3 is required for a fix as per NAVDORM
Obtained by:
- Visual
- Radar
|
|
|
Term
|
Definition
|
|
Term
|
Definition
FIX
At least one electronic means used in obtaining fix ie radar |
|
|
Term
| Half Circle with Line and dot |
|
Definition
|
|
Term
|
Definition
|
|
Term
| If 2 Navigational Aids are used they should be... |
|
Definition
|
|
Term
If 3 Navigational aids are used they should be.... |
|
Definition
|
|
Term
| If all Navigational aids are on the same side of ship they should be... |
|
Definition
90 degrees for 2 aids
60 degrees for 3 aids |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
- Less than 2 nautical miles from land
- 50 yards/FOM <2
- Max fix 3 minutes
|
|
|
Term
|
Definition
- 2-10 Nautical miles from Land
- 100 Yards/FOM<4
- Max Fix 3-15 minutes
|
|
|
Term
|
Definition
- 10-30 Nautical Miles from Land
- 500 yards FOM <6
- 15-30 minutes Max Fix
|
|
|
Term
|
Definition
- Over 30 nautical miles from land
- 1500 yards FOM<7
- Max Fix 30 minutes or as conditions warrant
|
|
|
Term
|
Definition
| Estimating your ship's future position without considering the effects of wind and current |
|
|
Term
| 6 Rules of Dead Reckoning |
|
Definition
- At least every hour on the hour while in open ocean
- After every course change
- After every speed change
- After plotting a single LOP
- After every fix or running fix
- Plot a new course line from each fix or running fix
|
|
|
Term
3 Minute Rule
1nm=2000 yds |
|
Definition
|
|
Term
|
Definition
D=S/10
(in nautical miles) |
|
|
