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3 NavigationNavigation Moon Zn 205° Dist 1.8nm Sun Zn 127° Dist 2.0nm 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 MT (1305) Dist 1.6nm

4 Chapter 9 Practice Cruise Homework NavigationNavigation

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 5 Practice Cruise

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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. 7 Practice Cruise

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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. 10 Practice Cruise

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

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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. 17 Practice Cruise

Export route. 20 Practice Cruise

21 Straits-Honolulu

Import route. 22 Practice Cruise

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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 kn 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. 27 Practice Cruise

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First_Log_Book.Txt [Logging Started 15 Apr 2013, 09:07:45] DR Plot – 15 Apr 2013,09:07:45,48° ’ N,124° ’ W, 000.0,0.0 DR Plot – 15 Apr 2013,09:08:02,48° ’ N,124° ’ W, 212.0,100.0 DR Plot – 15 Apr 2013,10:08:45,48° ’ N,124° ’ W, 212.0,100.0 DR Plot – 15 Apr 2013,10:09:47,48° ’ N,124° ’ W, 212.0,100.0 DR Plot – 15 Apr 2013,10:10:47,48° ’ N,124° ’ W, 212.0,100.0 DR Plot – 15 Apr 2013,10:11:47,48° ’ N,124° ’ W, 212.0,100.0 DR Plot – 15 Apr 2013,10:11:50,48° ’ N,124° ’ W, 212.0,100.0 DR Plot – 15 Apr 2013,10:12:27,48° ’ N,124° ’ W, 274.0,11.1 DR Plot – 15 Apr 2013,10:12:46,48° ’ N,124° ’ W, 270.0,100.0 DR Plot – 15 Apr 2013,10:13:27,48° ’ N,124° ’ W, 270.0,100.0

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. 30 Practice Cruise

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 At WT , you observe the moon UL at a sextant reading of 14°11.9´. At WT 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. 32 Practice Cruise

St Paul

SErr 3.5 St Paul

Position (L/Lo) (Note type of position)SpeedDV Course (psc) Time ZTWeatherRemarks ZD+8 GPS L 48° 24.0’N Lo 124° 45.0’W4W18E Calm, clear skiesDeparture from WP1, Knotmeter , Changed course to WP2, Adjust for expect current set 140° dft 0.4kn; equals 2° drift angle GPS L 48° 16.2’N Lo 124° 52.3’W8.94W18E Lt NW winds 4ft seasLog , Reported to Captain GPS L 47° 45.1’N Lo 125° 21.7’W8.94W18E Wind NW 4kn 4ft seaLog , Reported to Captain GPS L 47° 29.6’N Lo 125° 36.4’W1400Wind NW 5knLog DR L 47° 32.4’N Lo 125° 37.0’W140070°F, 30.10’ pressureMoon LOP NASR DR L 47° 32.2’N Lo 125° 37.2’W1401Log , Sun LOP NASR Fix L 47° 31.1’N Lo 125° 40.7’W14012-body fix 2.8nm from GPS fix GPS L 46° 42.9’N Lo 126° 19.7’W8.94W18E Wind W 3kn 2ft seasLog , Reported to Captain 2000Downloaded NOAATurned watch over to relief Weather report.Went off duty Weather prediction: <5ft sea, NW winds at 6-12kn DECK LOG – Vessel: Ocean Passage_ Navigator: Nav E Student From: Straits of Juan de Fuca To: Honolulu, HI Date: 25 Jun 20XX Page: ___1____

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° W at the top of the sheet. 37 Practice Cruise

Var 17° E ZD +9 ZD ° W 127° W 128° W126° W130° W 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.

Var 16° E 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. 41° N

30’ 127° W128° W POSITION PLOTTING SHEET 45° N 44° N 129° W ZD+9 ZD You arrive at WP2 and change course to your Leg 2 heading. Knotmeter log reads 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. ʘ 1017 C 217 S 8.9 WP CMG 212 SMG 9.2

30’ 127° W128° W POSITION PLOTTING SHEET 45° N 44° N 129° W ZD+9 ZD+8 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. ʘ 1017 C 217 S 8.9 WP CMG 212 SMG 9.2 Set 170 Dft 0.4 C 202 S 10.3

30’ 127° W128° W POSITION PLOTTING SHEET 45° N 44° N 129° W ZD+9 ZD+8 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 ʘ 1017 C 217 S 8.9 WP CMG 212 SMG 9.2 Set 170 Dft 0.4 ʘ 1135 C 202 S 10.3

30’ 127° W128° W POSITION PLOTTING SHEET 45° N 44° N 129° W ZD+9 ZD You observe the sun’s upper limb at an hs of 69° 04.2´. Knotmeter log reads Using a Meridian Transit Form, reduce this sight. ʘ 1017 C 217 S 8.9 WP CMG 212 SMG 9.2 Set 170 Dft C 202 S 10.3 ʘ

44 St Paul

30’ 127° W128° W POSITION PLOTTING SHEET 45° N 44° N 129° W ZD+9 ZD GPS position is L 44°27.8´N, Lo 128°15.9´W. Knotmeter log reads Winds are NW at 6 knots, seas are four feet. Report to the captain. ʘ 1017 C 217 S 8.9 WP CMG 212 SMG 9.2 Set 170 Dft 0.4 C 202 S 10.3 ʘ 1135 ʘ 1200 GPS CMG 201 SMG 10.1

30’ 127° W128° W POSITION PLOTTING SHEET 44° N 129° W 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 1135 ʘ 1200 GPS 1645 GPS 1645 ʘ ʘ CMG 201 SMG 10.1 D = – = 69.8

30’ 127° W128° W POSITION PLOTTING SHEET 44° N 129° W At , the hs of the sun’s upper limb is 25°27.0´. The knotmeter log reads Reduce this sight using the Law of Cosines method. Determine the running fix with the 1135 MT sight you reduced earlier. ʘ 1135 ʘ 1200 GPS 1645 GPS 1645 ʘ ʘ CMG 201 SMG 10.1

St Paul

Ques. 9c – RFix St Paul

30’ 127° W128° W POSITION PLOTTING SHEET 44° N 129° W RFix is L 43°43.6´N, Lo 128°41.9´W.? ʘ 1135 ʘ 1200 GPS 1645 GPS 1645 ʘ ʘ CMG 201 SMG 10.1 ʘ 1645 RFix

30’ 128° W129° W POSITION PLOTTING SHEET 44° N 130° W GPS position is L 43°31.3´N, Lo 128°46.6´W; the skies are clear with a northwest wind at six knots. Knotmeter log reads Develop a first estimate of the ZT of Civil Twilight. Use the SMG of 10.1kn and a CMG of 201° 43° N 1645 GPS 1645 ʘ ʘ ʘ 1645 RFix ʘ 1800 GPS

30’ 128° W129° W POSITION PLOTTING SHEET 44° N 130° W From NA, 26 Jun, for Tab Lat = 45 ° N, LMT of CT is (2hr28min) Extend intended track. D = 10.1 kn X 148 min/60 = 24.9nm Measure 24.9 nm from current position; 43° N 1645 GPS 1645 ʘ ʘ ʘ 1645 RFix ʘ 1800 GPS L 43°08.1'N, Lo 128°59.0'W x

30’ 128° W129° W POSITION PLOTTING SHEET 44° N 130° W 1.Tab LLMT CT 45°N °N2006 5° int. 22 min int. 2. L 43°08.1’ N - 40° N = 3°08.1’ = 3.135° 3. (3.135° / 5° int.) x 22 min int. = min, rounded to 14 min. 43° N 1645 GPS 1645 ʘ ʘ ʘ 1645 RFix ʘ 1800 GPS L 43°08.1'N, Lo 128°59.0'W x 4. LMT CT L 40°N 2006 (from NA) Corr’n to L43°08.1’N +14 min LMT CT, L43°08.1’N Find ZT: correct LMT for DLo. ZM 135°W DLo=Lo-ZM = 128°59.0’ W - 135°W = 6° 1.0’ E = 6.017° E, round to 6.0°E 6.0° x 4min/degree = 24 min. LMT CT 2020 (from step 4, above) DLo (E) -24 min ZT CT1956

30’ 128° W129° W POSITION PLOTTING SHEET 44° N 130° W Using Celestial Tools, plan a 3-body fix for this date and time (Note: use 2004 for the year). Print a copy of the Celestial Tools 'List Visible Bodies' screen, and file it in your Navigator's notebook. 43° N 1645 GPS 1645 ʘ ʘ ʘ 1645 RFix ʘ 1800 GPS x

Practice Cruise

30’ 128° W129° W POSITION PLOTTING SHEET 44° N 130° W You take the following sights: WTBody hsLog 19–45–11 Dubhe54°44.1´ –50–12 Vega45°27.4´ –55–08 Spica32°55.5´ Reduce these sights by the Law of Cosines method, and plot them on a CLS sheet to determine the 1955 fix position. 43° N 1645 GPS 1645 ʘ ʘ ʘ 1645 RFix ʘ 1800 GPS x

St Paul

St Paul (2)

St Paul (3)

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30’ 128° W129° W POSITION PLOTTING SHEET 44° N 130° W What is your 1955 DR position? What is the 1955 fix position? 43° N 1645 GPS 1645 ʘ ʘ ʘ 1645 RFix ʘ 1800 GPS 1955 ʘ ʘ 1955 Fix x

Position (L/Lo) (Note type of position)SpeedDV Course (psc) Time ZTWeatherRemarks ZD+8 GPS L 45° 23.7’N Lo 127° 30.0’W0556Crossed TZ border GPS L 45° 25.1’N Lo 127° 30.6’W0600Changed ship’s clock time ZD+9 GPS L 45° 25.1’N Lo 127° 30.6’W0500Wind NW 8kn 4ft sea GPS L 45° 01.8’N Lo 127° 51.4’W10.34W17E Wind NW 8kn 4ft seaLog , Reported to Captain GPS L 44° 44.0’N Lo 128° 07.0’W Wind NW 10kn 4ft seaLog , Arrive WP2, changed course to WP3, expected current 074°, drift 0.3kn, equals 1° drift angle, restart DR plot from WP2 DR L 44° 55.3’N Lo 128° 10.1’W1017 DR L 44° 31.6’N Lo 128° 14.0’W1135Log , Sun MT GPS L 44° 27.8’N Lo 128° 15.9’W10.34W17E Wind NW 6kn 4ft seaLog , Reported to Captain GPS L 43° 43.2’N Lo 128° 40.1’W1645 DR L 43° 42.2’N Lo 128° 41.8’W1645Log , Sun LOP for RFix Rfix L 43° 43.6’N Lo 128° 41.9’W1645Sun MT and Sun LOP GPS L 43° 31.3’N Lo 128° 46.6’W1800Wind NW 6kn clearLog DR L 43° 13.6’N Lo 128° 57.8’W1945Dubhe LOP LOC DR L 43° 12.8’N Lo 128° 58.2’W 1950Vega LOP LOC DR L 43° 12.0’N Lo 128° 58.6’W1955Spica LOP LOC Fix L 43° 13.4’N Lo 128° 58.2’W19553-body fix 10.34W17E Downloaded NOAALog , Reported to captain weather report.Turned watch over to relief. Weather predictionWent off duty. calm seas 10.34W17E Returned to duty DECK LOG – Vessel: Ocean Passage_ Navigator: Nav E Student From: Straits of Juan de Fuca To: Honolulu, HI Date: 26 Jun 20XX Page: ___2____

30’ 128° W129° W POSITION PLOTTING SHEET 44° N 130° W The crew member on watch wakes you up. The captain received a call Bill, the other member of the crew, notifying him of an emergency at home. It’s important that Bill gets to where he can fly home as quickly as possible. They reviewed charts to find the closest port to divert to that has airline service, and determined Crescent City, CA would be the best choice. The captain would like you to re-set the course to Crescent City. 43° N 1645 GPS 1645 ʘ ʘ ʘ 1645 RFix ʘ 1800 GPS 1955 ʘ ʘ 1955 Fix x

30’ 128° W129° W POSITION PLOTTING SHEET 44° N 130° W Create a new passage in the month of June, with your current position as WP1 and select Crescent City from “Locations” as WP2 for this route. You review several VPP2 reports for this route, and print the “Weather Conditions” report for your Navigator’s notebook. 43° N 1645 GPS 1645 ʘ ʘ ʘ 1645 RFix ʘ 1800 GPS 1955 ʘ ʘ 1955 Fix x

30’ 128° W129° W POSITION PLOTTING SHEET 43° N 130° W GPS currently indicates L 42° 30.2´N, Lo 129° 19.2´W; knotmeter log reads The DR position at 0030 is L 42°28.2´N, Lo 129°22.8´W. ʘ ʘ 1955 Fix GPS ʘ 0030 ʘ

30’ 128° W129° W POSITION PLOTTING SHEET 43° N 130° W You re-start your DR course from the 0030 GPS position using a 1° port drift angle correction, anticipating the current predicted by VPP2. Due to this current, you calculate S=10.3 kn. ʘ ʘ GPS ʘ 0030 ʘ C 100 S 10.3

Position (L/Lo) (Note type of position)SpeedDV Course (psc) Time ZTWeatherRemarks ZD+9 GPS L 42° 30.2’N Lo 129° 19.2’W0030Log Calculated course to divert to Crescent City due to emergency home situation DR L 42° 28.2’N Lo 129° 22.8’W0030 GPS L 42° 30.2’N Lo 129° 19.2’W2E16E Changed course to Crescent City Adjusted for expected 1° port dft angle, restart DR plot from 0030 GPS position 0030Turned watch back to relief Returned to off-duty status.. GPS L 42° 32.5’N Lo 129° 18.0’W10.34W17E Log DECK LOG – Vessel: Ocean Passage_ Navigator: Nav E Student From: Straits of Juan de Fuca To: Honolulu, HI Date: 27 Jun 20XX Page: ___3____

30’ 126° W127° W POSITION PLOTTING SHEET 42° N 128° W You come back on watch. GPS position is L 42°15.0´N, Lo 127° 35.6´W. You decide to move the destination waypoint and insert additional waypoints in this Capn route. Insert a new waypoint, WP2 at L 41°45.5´N, Lo 124°15.2´W, WP3 at L 41°43.5´N, Lo 124°12.5´W, Move the destination waypoint to L 41°44.2´N, Lo 124°11.3´W. Label this WP4. Print a copy of the waypoint information and place it in your Navigator’s notebook. ʘ GPS ʘ C 100 S 10.3 ZD+9 ZD+8 CMG 101 SMG 10.4

Practice Cruise

30’ 126° W127° W POSITION PLOTTING SHEET 42° N 128° W Create a circular alarm zone centered on Round Rock, east of Leg 3, with a 0.1 nmdiameter. Create an Alarm Zone to alarm if you stray about 300 yards to port on Leg 2 and Leg 3 of the route, starting northwest of Castle Rock and continuing to the destination point. Print a copy of the Alarm Zone and place it in your Navigator’s notebook. ʘ GPS ʘ C 100 S 10.3 ZD+9 ZD+8 CMG 101 SMG 10.4

30’ 126° W127° W POSITION PLOTTING SHEET 42° N 128° W 0824, you cross the ZD+9 / ZD+8 time zone boundary (ZD +8). GPS position is L 42°13.0´N, Lo 127°21.8´W GPS position is L 42°09.0´N, Lo 126°54.3´W. ʘ GPS 1200 ʘ C 100 S 10.3 ZD+9 ZD+8 ʘ ʘ 0824 GPS ZD GPS ZD+8 ʘ 1000 GPS 1200 GPS ʘ CMG 101 SMG 10.4 D = – = 30.9

30’ 128° W129° W POSITION PLOTTING SHEET 42° N 130° W As you maintain your DR plot you notice your course will run off the right side of the sheet very soon. Renumber the left meridian 126° W at the bottom of the plotting sheet and restart your course from the left side of the sheet. C 100 S 10.3 CMG 101 SMG ° W125° W126° W Var 16° E WP2 Crescent City 128° W 129° W130° W

30’ 128° W129° W POSITION PLOTTING SHEET 42° N 130° W C 100 S 10.3 CMG 101 SMG ° W125° W126° W GPS position indicates L 41°52.8´N, Lo 125°04.4´W. Knotmeter log reads GPS indicates L 41° 52.2´N, Lo 125°00.4´W. You notice an AIS target on the Capn screen 2000 ʘ 2000 GPS ʘ ʘ 2018 GPS Var 16° E WP2 Crescent City D = – = 82.4

30’ 128° W129° W POSITION PLOTTING SHEET 42° N 130° W C 100 S 10.3 CMG 101 SMG ° W125° W126° W Var 16° E You click on the AIS target icon, and the following screen is displayed: 2000 ʘ 2000 GPS ʘ ʘ 2018 GPS WP2 Crescent City Χ AIS C 266M S 8.1

30’ 128° W129° W POSITION PLOTTING SHEET 42° N 130° W C 100 S 10.3 CMG 101 SMG ° W125° W126° W Var 16° E GPS indicates L 41°48.6´N, Lo 124°35.4´W; knotmeter log reads You arrive at WP2 southwest of Castle Rock; knotmeter log reads Since you are now in coastal waters, you end your offshore DR plot, and begin observing land features and navigation aids to guide the captain safely through the remaining near-shore legs 2000 ʘ 2000 GPS ʘ ʘ 2018 GPS Χ AIS C 266M S 8.1 WP2 Crescent City ʘ 2207 GPS 2335

Position (L/Lo) (Note type of position)SpeedDV Course (psc) Time ZTWeatherRemarks ZD+9 GPS L 42° 15.0’N Lo 127° 35.6’W10.32E16E Wind 10kn 5ft seasReturned to duty status Clear skiesLog Reported to Captain GPS L 42° 14.2’N Lo 127° 30.0’W0824Crossed Time Zone Border GPS L 42° 13.0’N Lo 127° 21.8’W0900Changed ship’s clock time ZD+8 GPS L 42° 13.0’N Lo 127° 21.8’W1000 GPS L 42° 09.0’N Lo 126° 54.3’W10.32E16E Log Reported to Captain GPS L 41° 52.8’N Lo 125° 04.4’W10.32E16E Winds W 7knLog Reported to Captain GPS L 41° 52.2’N Lo 125° 00.4’W2E16E AIS target MMSI , on reciprocal course, approx. 15nm ahead. Hailed vessel to ensure we are seen. GPS L 41° 48.6’N Lo 124° 35.4’W2207Log Safely completed passage with AIS target GPS L 41° 45.5’N Lo 124° 15.2’W10.32W16E Arrive WP2 Crescent City, course changed to Leg 2. End DR plot, observing NavAids. Log GPS L 41° 43.5’N Lo 124° 12.5’W 3.05E16E Log Arrive WP3 Crescent City, course change to Leg 3. Per harbor master will tie up at Dock H, ETA 0014 DECK LOG – Vessel: Ocean Passage_ Navigator: Nav E Student From: Straits of Juan de Fuca To: Honolulu, HI Date: 27 Jun 20XX Page: ___4____

80 The End Practice Cruise