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Navigation

Navigation. Navigation. Navigation. Sunday 5 May 1100 CDT Sun LOP Moon LOP Sun/Moon Fix. 78°. NWS Forecast 40% chance of rain Mostly cloudy High near 52 East wind 3 to 7 mph. Sun Zn 127° Dist 2.0nm. Moon Zn 205° Dist 1.8nm. Sun MT (1305) Dist 1.6nm. Navigation. Chapter 9

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Navigation

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  1. Navigation

  2. Navigation

  3. Navigation Sunday 5 May 1100 CDT Sun LOP Moon LOP Sun/Moon Fix 78° NWS Forecast 40% chance of rain Mostly cloudy High near 52 East wind 3 to 7 mph Sun Zn 127° Dist 2.0nm Moon Zn 205° Dist 1.8nm Sun MT (1305) Dist 1.6nm

  4. Navigation Chapter 9 Practice Cruise Homework

  5. Using VPP2, start planning the cruise from Straits of Juan de Fuca, (L 48° 24.0´ N, Lo 124° 45.0´ W) to Honolulu, HI. Create a new passage in VPP2 and enter your departure and destination waypoints Practice Cruise 5

  6. Practice Cruise 6

  7. Before you can investigate various optimized courses in VPP2, you need to create a Vessel Profile for Ocean Passage. Print copy and file in your Navigator’s Notebook. Practice Cruise 7

  8. Practice Cruise 8

  9. Practice Cruise

  10. Run several iterations of VPP2’s Optimization Routine for the month of June. Select one of your June optimized routes and edit the waypoints of your selected route to match the waypoints in the table on next slide. Print the “Passage Summary Report” for the June optimized routes, and file it in your Navigator’s notebook. Practice Cruise 10

  11. Practice Cruise 11

  12. Practice Cruise 12

  13. Practice Cruise 13

  14. Waypoint # Latitude Longitude 1 N48° 24.00´ W124° 45.00´ 2 N44° 44.01´ W128° 07.00´ 3 N40° 54.83´ W130° 08.27´ 4 N37° 51.93´ W132° 14.77´ 5 N36° 29.30´ W135° 04.01´ 6 N34° 47.49´ W138° 18.46´ 7 N32° 54.82´ W140° 27.22´ 8 N30° 48.05´ W142° 33.47´ 9 N28° 54.01´ W144° 46.55´ 10 N26° 42.94´ W147° 10.42´ 11 N24° 02.52´ W152° 41.85´ 12 N21° 18.00´ W157° 52.00´ Practice Cruise 14

  15. Practice Cruise 15

  16. Generate a few more reports on your finalized route before exporting these waypoints to Capn. Print the “Weather Conditions Report” and the “Vessel Performance Report” for Leg 1 of this voyage, and file them in your Navigator’s notebook. Practice Cruise 17

  17. Export route. Practice Cruise 20

  18. Practice Cruise Straits-Honolulu 21

  19. Import route. Practice Cruise 22

  20. Practice Cruise 23

  21. Practice Cruise 24

  22. Practice Cruise 25

  23. Practice Cruise 26

  24. You plan to use Capn’s Trip Log feature with the GPS connected for an electronic log of the voyage. Run the simulation for five minutes at 100.0kn; at that point, slow the ship down to 5.0-10.0kn and change course to 270°T (to simulate reaching a waypoint and changing heading), and increase the speed back to 100.0kn. After an additional few minutes of running the simulation, click “Stop Logging” and print the resulting Trip Log for your Navigator’s notebook. Practice Cruise 27

  25. Practice Cruise 28

  26. Practice Cruise First_Log_Book.Txt [Logging Started 15 Apr 2013, 09:07:45] DR Plot – 15 Apr 2013,09:07:45,48° 24.008’ N,124° 44.979’ W, 000.0,0.0 DR Plot – 15 Apr 2013,09:08:02,48° 23.961’ N,124° 45.023’ W, 212.0,100.0 DR Plot – 15 Apr 2013,10:08:45,48° 22.548’ N,124° 46.353’ W, 212.0,100.0 DR Plot – 15 Apr 2013,10:09:47,48° 21.087’ N,124° 47.727’ W, 212.0,100.0 DR Plot – 15 Apr 2013,10:10:47,48° 19.674’ N,124° 49.055’ W, 212.0,100.0 DR Plot – 15 Apr 2013,10:11:47,48° 18.307’ N,124° 50.339’ W, 212.0,100.0 DR Plot – 15 Apr 2013,10:11:50,48° 18.213’ N,124° 50.428’ W, 212.0,100.0 DR Plot – 15 Apr 2013,10:12:27,48° 17.582’ N,124° 51.030’ W, 274.0,11.1 DR Plot – 15 Apr 2013,10:12:46,48° 17.582’ N,124° 51.643’ W, 270.0,100.0 DR Plot – 15 Apr 2013,10:13:27,48° 17.582’ N,124° 53.313’ W, 270.0,100.0

  27. Display your route to Honolulu in Capn on a chart so that the entire route can be viewed. Print a copy of this route, and file in your Navigator’s notebook. Practice Cruise 30

  28. You plan to use celestial techniques frequently during this voyage. Your GPS position is L 47° 29.6´ N, Lo 125° 36.4´ W and your DR position is L 47° 32.4´ N, Lo 125° 37.0´ W. Winds are northwest at five knots and the knotmeter log reads 0062.3. At WT 14-00-16, you observe the moon UL at a sextant reading of 14°11.9´. At WT 14-01-12 you observe the sun LL with an hs of 59° 00.1´. Reduce both bodies using the NASR method and plot the resulting 2-body fix on a CLS plotting sheet. Practice Cruise 32

  29. St Paul

  30. St Paul

  31. St Paul SErr 3.5

  32. DECK LOG – Vessel: Ocean Passage_ Navigator: Nav E Student From: Straits of Juan de Fuca To: Honolulu, HI Date: 25 Jun 20XX Page: ___1____ 1200 1400 1401 0800 1401 0700 1400 2000 Time ZT 2000 ZD+8 Course (psc) 200 200 200 200 18E V 18E 18E 18E D 4W 4W 4W 4W 8.9 8.9 Speed 8.9 GPS L 48° 16.2’N Lo 124° 52.3’W GPS L 47° 29.6’N Lo 125° 36.4’W GPS L 48° 24.0’N Lo 124° 45.0’W GPS L 47° 45.1’N Lo 125° 21.7’W DR L 47° 32.4’N Lo 125° 37.0’W GPS L 46° 42.9’N Lo 126° 19.7’W DR L 47° 32.2’N Lo 125° 37.2’W Fix L 47° 31.1’N Lo 125° 40.7’W Position (L/Lo) (Note type of position) 70°F, 30.10’ pressure Wind NW 4kn 4ft sea Calm, clear skies Wind W 3kn 2ft seas Weather Lt NW winds 4ft seas Weather report. Weather prediction: <5ft sea, NW winds at 6-12kn Wind NW 5kn Downloaded NOAA Log 0062.3 Log 0044.5, Reported to Captain Went off duty Moon LOP NASR Turned watch over to relief Log 0008.9, Reported to Captain Remarks Log 0062.4, Sun LOP NASR dft 0.4kn; equals 2° drift angle 2-body fix 2.8nm from GPS fix Adjust for expect current set 140° 0000.0, Changed course to WP2, Log 0115.7, Reported to Captain Departure from WP1, Knotmeter

  33. All plotting for the remainder of this cruise is to be done on the Chart N.O. 974 Prepare a blank offshore plotting sheet, Chart 974, to maintain your DR plot starting tomorrow morning. Arrange the plotting sheet for north latitude, and label the meridian on the left 130° Wat the top of the sheet.  Practice Cruise 37

  34. POSITION PLOTTING SHEET 130° W 128° W 126° W 127° W 129° W 45° N 45° N 30’ 30’ 30’ 30’ ZD +9 ZD +8 Var 17° E 30’ 30’ 44° N 44° N Plot the 17° E isogonic line from the position: L 44°00.0´N, Lo 129°13.0´W, bearing 254° - 074°. Plot time zone boundaries on the plotting sheet, as appropriate. 30’ 30’ 43° N 43° N

  35. 43° N 43° N 30’ 30’ Plot the 16°E isogonic line from: L 41°35.5´N, Lo 126°00.0´W to L 41°00.0´N, Lo 129°00.0´W. 42° N 42° N 30’ 30’ Var 16° E ZD +9 ZD +8 30’ 30’ 30’ 30’ 41° N 41° N 130° W 128° W 126° W 127° W 129° W N.O. 974 (Formerly H.O. 3000-14Z) MERCATOR PROJECTION 1° Long – 4 inches

  36. POSITION PLOTTING SHEET 129° W 128° W 127° W 45° N 1017 30’ 30’ CMG 212 SMG 9.2 ZD+9 ZD+8 C 217 S 8.9 WP2 1017 ʘ 30’ • 1017. You arrive at WP2 and change course to your Leg 2 heading. Knotmeter log reads 0251.7. Your DR position is L 44°55.3´N, Lo 128°10.1´W. Winds are still out of the northwest but have increased to about 10 kn, seas remain at 4 ft. 44° N

  37. POSITION PLOTTING SHEET 129° W 128° W 127° W 45° N 1017 30’ 30’ CMG 212 SMG 9.2 ZD+9 ZD+8 Set 170 Dft 0.4 C 217 S 8.9 WP2 1017 ʘ C 202 S 10.3 • You determine the set and drift of Leg 1 of this voyage and find it is very close to the information provided in the VPP2 reports. Since the current information in VPP2 was quite accurate for Leg 1, you plan to use the VPP2 forecast for Leg 2. The predicted set and drift of 074° at 0.3kn will result in a drift angle of approximately one degree, making the course to steer 202°T. Restart your DR plot at this time from WP2. 30’ 44° N

  38. POSITION PLOTTING SHEET 129° W 128° W 127° W 45° N 1017 30’ 30’ CMG 212 SMG 9.2 ZD+9 ZD+8 Set 170 Dft 0.4 C 217 S 8.9 WP2 1017 ʘ ʘ C 202 S 10.3 1135 30’ • While you were computing set and drift, a crew member determined that meridian transit will occur at 1135 at which time your DR position will be L44°31.6´N, Lo 128°14.0´W 44° N

  39. POSITION PLOTTING SHEET 129° W 128° W 127° W 45° N 1017 30’ 30’ CMG 212 SMG 9.2 ZD+9 ZD+8 Set 170 Dft 0.4 C 217 S 8.9 WP2 1017 ʘ ʘ C 202 S 10.3 1135 30’ • 11-35-11. You observe the sun’s upper limb at an hs of 69° 04.2´. Knotmeter log reads 0265.1. Using a Meridian Transit Form, reduce this sight. 44° N

  40. St Paul 44

  41. POSITION PLOTTING SHEET 129° W 128° W 127° W 45° N 1017 30’ 30’ CMG 212 SMG 9.2 ZD+9 ZD+8 Set 170 Dft 0.4 C 217 S 8.9 WP2 1017 ʘ ʘ C 202 S 10.3 1135 30’ 1200 GPS ʘ • 1200. GPS position is L 44°27.8´N, Lo 128°15.9´W. Knotmeter log reads 0269.4. Winds are NW at 6 knots, seas are four feet. Report to the captain. CMG 201 SMG 10.1 44° N

  42. POSITION PLOTTING SHEET 129° W 128° W 127° W 1135 30’ 30’ 30’ 1200 GPS ʘ • 1645. GPS position is L 43°43.2´N, Lo 128°40.1´W. You prepare to take another sun sight to establish a running fix with the noon sight. • What is your 1645 DR position?? ʘ ʘ 44° N CMG 201 SMG 10.1 D = 00321.5 – 00251.7 = 69.8 1645 ʘ 1645 GPS

  43. POSITION PLOTTING SHEET 129° W 128° W 127° W 1135 30’ 30’ 30’ 1200 GPS ʘ ʘ ʘ • At 16-45-22, the hs of the sun’s upper limb is 25°27.0´. The knotmeter log reads 0318.3. Reduce this sight using the Law of Cosines method. • Determine the running fix with the 1135 MT sight you reduced earlier. 44° N CMG 201 SMG 10.1 1645 ʘ 1645 GPS

  44. St Paul

  45. Ques. 9c – RFix St Paul

  46. POSITION PLOTTING SHEET 129° W 128° W 127° W 1135 30’ 30’ 30’ 1200 GPS ʘ ʘ ʘ 44° N CMG 201 SMG 10.1 • RFix is L 43°43.6´N, Lo 128°41.9´W.? 1645 RFix ʘ 1645 ʘ 1645 GPS

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