1. Flotilla 12-10 Navigation Study Guide Chapter 4: Tools and Instruments Instructor: Ernie Sementilli Selected Questions: Study these for exam PowerPoint Presentation by Forrest Meiere

2. Flotilla 12-10 Navigation Study Guide S4-2.The basic purposes of a plotter are to be able to draw straight lines on the nautical chart and to measure the _____ of these _____ with respect to either the parallels of latitude or the meridians of longitude. angle lines S4-3. The purpose of the nautical slide rule is to quickly solve __________________ problems _______ and __________. time-speed-distance quickly accurately

3. Flotilla 12-10 Navigation Study Guide S4-5. _____ is one of the basic dimensions of piloting. A reliable _________ is essential. Without a means of telling ____ dead reckoning navigation, running a search pattern, or identifying the proper characteristic of an ATON are all impossible. Time S4-4.A _________________ may be used for taking visual bearings on land- marks and Aids to Navigation. handheld compass timepiece time

4. Flotilla 12-10 Navigation Study Guide S4-6.A good ___________________ can be useful in locating and identifying visual landmarks and ATONs. Avoid __________ with more than ________ as these are nearly impossible to hold steady enough by hand alone. 7 x 50 mm binocular S4- 7.The _________________ may be used to ascertain shallow depths of water when the depth sounder is not handheld lead line binoculars7 power

5. Flotilla 12-10 Navigation Study Guide S4-9.Particularly on power vessels the mass of metal in the engine may cause appreciable _________________ if bearings are taken with a handheld compass while standing over or near the engine. compass deviation S4-10.The individual navigator must make the choice of which tools are appropriate to their needs and budget. At a minimum, a ______, charts, relevant ___________, pencils, ______, dividers, a hand-bearing compass, a _________, portable navigation receiver, and some device for measuring water depth should be onboard. publications plotter slide rule watch End of Questions

6. Flotilla 12-10 Navigation Study Guide a. L: 41° 11.2'N, Lo: 70° 57.4'W: b. L: 41° 28.9'N, Lo: 70° 53.3'W: c. L: 41 ° 30.1 'N, Lo: 70° 38.7'W: hrd (hard), Narrow return PROBLEMS: Use the 1210- Tr chart and the deviation table in Lesson 2. P4-1. What are the types of bottoms and what kind of flash would a flashing light-type display depth sounder indicate at the following positions? rky (rocky), Multiple sharp returns stk (sticky), Broad fuzzy return

7. Flotilla 12-10 Navigation Study Guide d. L: 41 ° 28.2'N, Lo: 70° 49.8'W: e. L: 41 ° 14.1 'N, Lo: 70° 49.3'W: P4-1. (Continued) sft (soft), Broad fuzzy return sh (shells), Narrow return P4-2. What is the object at L: 41 ° 12.2'N, Lo: 70° 50.0'W? Per chart notation: In plain English : R "2", F1 R 4 sec WHISTLE A lighted starboard-hand red whistle buoy with the number "2" painted on it flashing red once every four seconds.

8. Flotilla 12-10 Navigation Study Guide P4-5. What is the distance between the objects in P4-4 above?________ P4-3. What is the object at L: 41 ° 21.8'N, Lo: 70° 51.9'W? Port-hand buoy "29" F1 G 4 sec GONG (A lighted port-hand green gong buoy with the number "29" painted on it flashing green once every four seconds.') P4-4. What is the bearing to the object in P4-2 from the object in P4-3 above? TRUE _____ MAGNETIC ______ COMPASS ______ 191C187M 9.7 NM 172

9. Flotilla 12-10 Navigation Study Guide P4-6. While at L: 41 ° 12.2'N, Lo: 70° 50.0'W and steering toward a large object in the distance exhibiting a flashing light, the compass reads 336C. What is the object and what are its position coordinates? BUZZARDS LIGHT L: 4l° 23.8'N, Lo: 7l° 02.0'W. (Flashes once every 2.5 sec, 101 feet high, visible at 22 miles [if you are high enough to see it, about 75 ft. above the water] sounds a HORN in reduced visibility, and has a radio beacon that transmits the Morse code letters BB on 314 Khz.) P4- 7. How far away is the object identified in P4-6? ________ 14.7 NM

10. Flotilla 12-10 Navigation Study Guide a. RG N: b. R "10" Fl R 4 sec GONG: c. BW "BB" Mo (A) BELL: d. R "8" Fl R 4 sec GONG: e. R "6" Fl R 4 sec BELL: P4-8. Provide the positions for the following buoys in Buzzards Bay beginning NW of Woods Hole and proceeding southwesterly: L: 41° 33.1 'N; Lo: 70° 46.6'W L: 41° 34.1 'N; Lo: 70° 43.3'W. L: 4l° 30.8'N; Lo: 70° 50.1 'W L: 4l° 29.0'N; Lo: 70° 53.6'W L: 4l°27.9'N; Lo: 70° 56.6'W

11. Flotilla 12-10 Navigation Study Guide P4-9. In problem 4-8, above, what are the directions to each end of the line between: a. Buoy RG N and Buoy BW "BB" Mo (A) BELL? _______ or ________ TRUE _______ or ________ MAGNETIC b. and, using the deviation table given in this guide, the compass courses to steer: _______ or _______ COMPASS 057 237 072M 252M 067C 257C

12. Flotilla 12-10 Navigation Study Guide a. 6.6M @ 323C? b. 3.5M @ 223C? c.4.4M @ 251C? d. 5.4M @ 083C? e. 7.6M @ 177C? P4-l0. What are the depth of water and the bottom characteristic at the position bearing dead ahead from L: 41 ° 26.3'N Lo: 70° 46.9'W? 76 ft., hrd (hard). 40-53 ft., stk (sticky). 88 ft., rky (rocky). 70 ft., hrd (hard). 58-59 ft., S Sh (sand, shells)

13. Flotilla 12-10 Navigation Study Guide a.L: 41 ° 21.3'N Lo: 70° 44.2'W:L: 41 ° 21.3'N Lo: 70° 44.2'W: b. L: 41 ° 20.5'N Lo: 70° 48.8'W: c. Bearing 260° 4.2M from L: 41 ° 25.4'N Lo: 70° 40.3'W d. Heading 261°C 7.2M from L: 41 ° 15.7'N Lo: 70° 4l.6'W e. Heading 054°C 9.0M from L: 41° 14.4'N Lo: 70° 58.4'W P4-11. Identify the objects found at the following positions: Buoy, BR C RADAR TOWER Lighted Buoy R "2" PI R 4 sec WHISTLE GAY HEAD Light, A1t Gp PI (3) W & (1) "'I SPIRE

14. Flotilla 12-10 Navigation Study Guide a. L: 41 ° 25.6'N Lo: 70° 52.6'W: L: 41 ° 25.6'N Lo: 70° 52.6'W: b. L: 41 ° 25.2'N Lo: 70° 56.1 'W: c. Bearing 236° 11.0M from L: 41° 30.0'N Lo: 70° 50.0'W d. Bearing 334°C 7.6M from L: 41° 11.8'N Lo: 70° 53.5'W e. Bearing 277°C 3.0M from L: 41° 17.6'N Lo: 71° 00.1'W P4-12. Identify the objects found at the following positions: MONUMENT Buoy "VS" BW WHISTLE Unexploded depth charge ED Sept 14 1957 LOOKOUT TR. BUZZARDS LIGHT

15. Flotilla 12-10 Navigation Study Guide a. Lighted buoy RW "NA" Mo (A) WHISTLE (midchannel in Vineyard Sound between Gay Head and Nashawena Island) b. Lighted buoy "27" FIG 4 sec BELL (south side of channel in Vineyard Sound southeast of Naushon Island) c. SPIRE at Chilmark, on west end of Martha's Vineyard P4-13. Determine the true and magnetic directions of the following objects from BUZZARDS Light: 086, 101M 075, 090M 104, 119M

16. Flotilla 12-10 Navigation Study Guide d. TOWER on Gooseberry Neck (on Massachusetts shore north of Buzzards) e. WINDMILL on Round Hill Point (midway to New Bedford NNE of Buzzards) P4-13. (Continued) 358, 013M 022, 037M

17. Flotilla 12-10 Navigation Study Guide a. Lighted buoy RW "NA" Mo (A) WHISTLE (midchannel in Vineyard Sound between Gay Head and Nashawena Island) b. Lighted buoy "27" FIG 4 sec BELL (south side of channel in Vineyard Sound southeast of Naushon Island) c. SPIRE at Chilmark, on west end of Martha's Vineyard P4-14. Determine the true and magnetic directions of the following objects from the MONUMENT on NASHA WENA Island: 141, 156M 074, 089M 130, 145M

18. Flotilla 12-10 Navigation Study Guide d. TOWER on Gooseberry Neck (on Massachusetts shore north of Buzzards) e. WINDMILL on Round Hill Point (midway to New Bedford NNE of Buzzards) P4-14. (Continued) 296, 311M 334, 349M

19. Flotilla 12-10 Navigation Study Guide a. Lighted buoy RW "NA" Mo (A) WHISTLE (midchannel in Vineyard Sound between Gay Head and Nashawena Island) b. Lighted buoy "27" FIG 4 sec BELL (south side of channel in Vineyard Sound southeast of Naushon Island) c. SPIRE at Chilmark, on west end of Martha's Vineyard P4-l5. Determine the true and magnetic directions from the following objects to BUZZARDS Light: 267, 282M. 255, 270M. 284, 299M

20. Flotilla 12-10 Navigation Study Guide d. TOWER on Gooseberry Neck (on Massachusetts shore north of Buzzards) e. WINDMILL on Round Hill Point (midway to New Bedford NNE of Buzzards) P4-15. (Continued) 178, 193M 202, 217M

21. Flotilla 12-10 Navigation Study Guide a. Lighted buoy RW "NA" Mo (A) WHISTLE (midchannel in Vineyard Sound between Gay Head and Nashawena Island) b. Lighted buoy "27" FIG 4 sec BELL (south side of channel in Vineyard Sound southeast of Naushon Island) c. SPIRE at Chilmark, on west end of Martha's Vineyard P4-l6. Determine the true and magnetic directions from the following to the MONUMENT on Nashawena Island: 321, 336M 254, 269M 310, 325M

22. Flotilla 12-10 Navigation Study Guide d. TOWER on Gooseberry Neck (on Massachusetts shore north of Buzzards) e. WINDMILL on Round Hill Point (midway to New Bedford NNE of Buzzards) P4-16. (Continued) 116, 131M 154, 169M

23. Flotilla 12-10 Navigation Study Guide a. RW "NA" Mo (A) WHISTLE and "29" FIG 4 sec GONG (South Vineyard Sound): _____ or _____ b. "I" FIG 4 sec BELL and R "2" PI R 4 sec WHISTLE (South of Nomans Land: _____ or _____ c. G C "5" and G C "3" (North of Nomans Land): _____ or _____ P4-l7. What are the true directions of the following ranges? 012 192 039 219 113 293

24. Flotilla 12-10 Navigation Study Guide d. SPIRE on Gay Head and SPIRE at Chilmark: _____ or _____ e. Qk Fl 63 ft 12M and LOOK TR on Cuttyhunk Island: _____ or _____ P4-17. (Continued) 086 266 063 243

25. Flotilla 12-10 Navigation Study Guide P4-19. What Navigation Rules would apply in the vicinity of Nomans Land? P4-18. What Navigation Rules would apply in Buzzards Bay? Inland Navigational Rules COLREGS (International Regulations for Preventing Collisions at Sea, 1972, amended 1982) End of Problems