Radar Plotting Flashcards by Joey M

Q

What is W-O and how do you calculate it?

A

Way of own, your vessels true track
SPD / 60 x Plotting Interval

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Q

What is O-A?

A

Relative course of target

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Q

What is W-A and how do you calculate it?

A

Way of another, Target vessels true track
Co. / SPD target

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Q

How do you calculate SPD of target vessel?

A

SPD of target = W-A / Plot Int x 60

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Q

How do you calculate TCPA?

A

TCPA = A-N / O-A x Plot Interval

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Q

How is set measured?

A

A-W

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Q

How is drift calculated?

A

A-W / Plotting interval x 60

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Q

How do you calculate for a time delay?

A

Time Delay = O-A / Plot Interval x Time Delay

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