St Paul Sail and Power Squadron a unit of United States Power Squadrons ® C 038M D ETA 0626 C 080M S 5.0 ETA ETA C 046M S 10 ETA 0729 ETA M M 0742 M = 285 V = 015 T = M C 223M S 20 #15 ETA at R “10” Q R? T = (60D) / S T = 120 / 20 T = T = 208 V = 015 M = 223 ETA 1006 #16 What is your course? 4. You and your friend fish until It is low tide. You again take bearings to the previous objects to establish your 1000 position. Your plans for the day include picking up your son at Blackfish Creek around noon, have lunch and start to learn how to use his GPS. The bearings to the Chapman Point light Fl 6s 18M HORN is 285ºM and the bearing to the Tower R Lt north of Channel Island is the same as your previous reading. What is the L & Lo of 1000 Fix? Lo 71º 56.4’W L 41º 41.4’N 5. You plot and label a course from the 1000 Fix to R “10” Q R. You proceed at a speed of 20 kn.
St Paul Sail and Power Squadron a unit of United States Power Squadrons ® C 038M D ETA 0626 C 080M S 5.0 ETA ETA C 046M S 10 ETA 0729 ETA M M M 5. You plot and label a course from the 1000 Fix to R “10” Q R. You proceed at a speed of 20 kn. C 224M S 20 ETA You arrive at R “10” Q R at your estimated time, and plot a course from R “10” Q R to R N “2” at the entrance to Blackfish Creek and you reduce your speed to 4.5 kn to troll for Blue Fish #17 What is your course? T = 158 V = 015 M = 173 C 173M S 4.5 # DR position? D = (SxT) / 60 D = 243 / 60 D = 4.05 = You arrive at R N “2” at You then plot a course to R N “4”. You increase your speed and arrive at C 203M #19 Why didn’t you plot your course directly to R N “2” from your 1000 position? #20 What was your average speed from R N “2” to R N “4”? 1120 S = (60D) / T S = 102 / 8 S = = 13 S You plot and label a course from the 1000 Fix to R “10” Q R. You proceed at a speed of 20 kn. Lo 71º 55.6’W
St Paul Sail and Power Squadron a unit of United States Power Squadrons ® 7. You arrive at R N “2” at You then plot a course to R N “4”. You increase your speed and arrive at C 203M 1120 S You depart from G C “3” at the entrance to Blackfish Creek at 1300 and lay a course for the east end of Channel Island on a course of 023ºM at a speed of 20kn. At 1316 your friend calls you from Duttons Island to report the fishing is great near the submerged rocks south of the island on the 18ft. sounding line. Your son’s GPS indicates that you are located at latitude 41º 39.2’N and longitude 071º 53.5’W You are still unsure of the GPS so before changing course you take a bearing on the Fl 8s 20ft 5M beacon on Channel Island. The bearing is 011ºM. You also take another bearing on the R “8” I Q R buoy. The bearing is 068ºM. The two bearing FIX agrees with the GPS FIX. M = 023 V = 015W T = C 023M S 20 M = V = T = M M 1316 #21 What is your 1316 DR D = S x T / 60 D = 320 / 60 D = 5.33 = L 41º 39.2’N Lo 71º 53.4’W