Chart work

Question 1

What are the Leeway rules?

Answer 1

CTS - Counteract leeway
Everything else - allow leeway

Question 2

How do you get minutes to degrees on the calculator?

Answer 2

Minutes / 60 and then press degree button

Question 3

How to plot tide experienced?

Answer 3

1. Do the maths in question
2. Plot your initial position
3. Lay off W/T
4. Plot your second fix
5. From then end of W/T to second fix is your tidal vector
6. plot G/T

Question 4

How to plot running fix?

Answer 4

1. Do the maths in question
2. Plot single line of position
3. Choose a safe and realistic EP
4. Lay off W/T and tidal vector to get a second EP
5. Transfer first line of position onto second EP
6. Lay off second line of position
7. Your fix is where the two lines of position meet
8. EP to EP represents your direction and length of G/T
9. Transfer your “G/T” to your fix to get real G/T

Question 5

How to plot EP?

Answer 5

1. Do the maths in question
2. Plot a position
3. Lay off W/T
4. Lay off tidal vector from end of W/T
5. End of tidal vector is your EP

Question 6

Course to steer? (No Time Given)

Answer 6

1. Do the maths in question
2. Lay off G/T
3. Lay off tidal vector from initial fix
4. From tidal vectors end, arc (distance according to time interval) on G/T, this is an EP
5. End of tidal vector to arc is your W/T

Question 7

Course to steer? (Time Given)

Answer 7

1. Plot position (start & finish)
2. Lay off G/T
3. Lay off tidal vector (same time interval)
4. From the end of tidal vector to G/T is your W/T