Radar Plotting Flashcards
1
Q
What is W-O and how do you calculate it?
A
- Way of own, your vessels true track
- SPD / 60 x Plotting Interval
2
Q
What is O-A?
A
Relative course of target
3
Q
What is W-A and how do you calculate it?
A
- Way of another, Target vessels true track
- Co. / SPD target
4
Q
How do you calculate SPD of target vessel?
A
SPD of target = W-A / Plot Int x 60
5
Q
How do you calculate TCPA?
A
TCPA = A-N / O-A x Plot Interval
6
Q
How is set measured?
A
A-W
7
Q
How is drift calculated?
A
A-W / Plotting interval x 60
8
Q
How do you calculate for a time delay?
A
Time Delay = O-A / Plot Interval x Time Delay
