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Q6. Convert the following compass bearings to true and then find the latitude and longitude of the following research
positions and mark them on your chart.
Check your answer with the suggested answer given. Note all bearings have been made with a hand-bearing compass.
Research site 1.
Bearing to Skiddow Peak 291
0
C
True bearing =
Bearing to Hill 457 Brampton Is 255
0
C
True bearing =
Bearing to Hill 670 Cockermouth Is 35
0
C True bearing =
Latitude: Longitude:
Research site 2.
Bearing to Solder Is 187
0
C
True bearing =
Bearing to Finger and Thumb 224
0
C
True bearing =
Bearing to Hill 323 Brampton Is 104
0
C
True bearing =
Latitude: Longitude:
Q7. You are at the anchorage at Maryport Bay, Brampton Island, in position 20
°
48' S 149
°
16' E. Mark this on your chart as
position A and answer the following questions. Variation for 2014. No deviation.
a. You want to go to Coffin Island. What compass course will you steer?
b How far is it from position A to Coffin Island?
c. How long will it to take to arrive at Coffin Island if you travel at 6 knots?
Q8. Your GPS is playing up and are worried about your deep sea study research site and decide to fix your position. You
take the following bearings: Plot this position and mark it on the chart as position C.
Allonby Island Hill 198
275
°
C True bearing =
Brampton Island Hill 323
133
°
C True bearing =
Tinsmith Hill 448
342
°
C True bearing =
Q9 What are the rocks you can see in front of you?
Q10. How do you account for the change in position from point B to point C?
Q11
.You are anchored near Geranium Shoal. Locksmith - S (southern tips of Locksmith Island) is in transit with
Ladysmith - S. You also have Allonby Island Hill 198 in transit with Tinsmith Island - SE.
a. Mark this position as position D.
b. What is the latitude and longitude of point D?
c. How far are you from Geranium Shoal?
d.What course would you steer to arrive at the shoal?
e. How long will it take you to get there at 6 knots?
f. It is now a 3 m tide. What will your depth sounder read as you find the shoal?
