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A | The great circle distance from LAT 08°50.0'N, LONG 80°21.0'W to LAT 12°36.0'N, LONG 128°16.0'E is 8664 miles, and the initial course is 306.6°T. Determine the latitude of the vertex. | 37°30.2'N | 37°48.2'N | 37°39.6'N | 37°53.6'N | Great Circle Sailing |
B | The great circle distance from LAT 38°17'N, LONG 123°16'W to LAT 35°01'N, LONG 142°21'E is 4330 miles, and the initial course is 300.9°T. Determine the latitude of the vertex. | 47°35.2'N | 47°40.5'N | 47°24.7'N | 46°54.8'N | Great Circle Sailing |
C | The great circle distance from LAT 24°25.3'N, LONG 83°02.6'W to LAT 35°57.2'N, LONG 5°45.7'W is 3966.5 miles. Determine the latitude of the vertex. | 38°46.2'N | 38°16.4'N | 38°09.4'N | 37°57.3'N | Great Circle Sailing |
D | The great circle distance from LAT 25°50'N, LONG 77°00'W to LAT 35°56'N, LONG 06°15'W is 3616 miles, and the initial course is 061.7°T. Determine the latitude of the vertex. | 37°41.6'N | 37°32.2'N | 37°45.2'N | 37°34.9'N | Great Circle Sailing |
C | The great circle distance from LAT 35°08.0'S, LONG 19°26.0'E to LAT 33°16.0'S, LONG 115°36.0'E is 4559 miles and the initial course is 121°T. Determine the latitude of the vertex. | 44°29.1'S | 46°18.2'S | 45°30.9'S | 43°41.8'S | Great Circle Sailing |
A | The great circle distance from LAT 35°57.2'N, LONG 05°45.7'W to LAT 24°25.3'N, LONG 83°02.6'W is 3966.5 miles and the initial course is 283.7°T. The latitude of the vertex is 38°09.4'N. What is the longitude of the vertex? | 28°18.2'W | 28°02.6'W | 28°54.7'W | 28°46.3'W | Great Circle Sailing |
D | The great circle distance from LAT 38°17.0'N, LONG 123°16.0'W to LAT 35°01.0'N, LONG 142°21.0'E is 4330 miles and the initial course is 300.9°T. The latitude of the vertex is 47°40.5'N. What is the longitude of the vertex? | 173°04.6'W | 167°18.0'E | 173°04.6'E | 167°18.5'W | Great Circle Sailing |
B | The great circle distance from LAT 25°50'N, LONG 77°00'W to LAT 35°56'N, LONG 06°15'W is 3616 miles, and the initial course is 061.7°T. Determine the longitude of the vertex, given the latitude of the vertex as 37°34.9'N. | 25°53.2'W | 25°59.0'W | 26°03.4'W | 25°49.8'W | Great Circle Sailing |
D | The great circle distance from LAT 08°50.0'N, LONG 80°21.0'W to LAT 22°36.0'N, LONG 128°16.0'E is 7801 miles and the initial course is 318°45' T. The latitude of the vertex is 49°20.6'N. What is the longitude of the vertex? | 159°32'W | 161°18'W | 156°43'W | 162°41'W | Great Circle Sailing |
B | The great circle distance from LAT 35°08.0'S, LONG 19°26.0'E to LAT 33°16.0'S, LONG 115°36.0'E is 4559 miles and the initial course is 121°T. Determine the longitude of the vertex. | 26°50.9'E | 65°45.9'E | 72°18.3'E | 69°19.1'E | Great Circle Sailing |
D | Determine the great circle distance and initial course from LAT 08°36.0'N, LONG 126°17.0'E to LAT 02°12.0'S, LONG 81°53.0'W. | 9076 miles, 067°T | 9105 miles, 079°T | 9015 miles, 067°T | 9076 miles, 079°T | Great Circle Sailing |
A | Determine the great circle distance and initial course from LAT 27°51.0'N, LONG 71°41.0'W to LAT 49°45.0'N, LONG 06°14.0'W. | 3214 miles, 046.9°T | 3196 miles, 313.1°T | 3231 miles, 041.4°T | 3219 miles, 042.5°T | Great Circle Sailing |
D | Determine the great circle distance and initial course from LAT 35°17.6'N, LONG 144°23.0'E to LAT 47°36.0'N, LONG 124°22.0'W. | 3718 miles, 318°T | 3946 miles, 312°T | 3881 miles, 042°T | 3931 miles, 048°T | Great Circle Sailing |
C | Determine the great circle distance and initial course from LAT 12°45.2'N, LONG 124°20.1'E to LAT 33°48.8'N, LONG 120°07.0'W. | 6382.0 miles, 311.7°T | 6231.3 miles, 309.7°T | 6185.9 miles, 050.3°T | 6248.0 miles, 048.3°T | Great Circle Sailing |
D | Determine the great circle distance and initial course from LAT 37°47.5'N, LONG 122°27.8'W to LAT 33°51.7'S, LONG 151°12.7'E. | 6324.2 miles, 310.3°T | 6345.3 miles, 301.7°T | 6398.0 miles, 298.3°T | 6445.2 miles, 240.3°T | Great Circle Sailing |
D | Determine the great circle distance and initial course from LAT 33°53.3'S, LONG 18°23.1'E to LAT 40°27.0'N, LONG 73°49.4'W. | 6743.5 miles, 302.7°T | 6750.8 miles, 235.5°T | 6648.0 miles, 298.7°T | 6763.0 miles, 304.5°T | Great Circle Sailing |
A | Determine the great circle distance and initial course from LAT 34°51.0'N, LONG 115°01.2'E to LAT 10°16.0'S, LONG 51°42.6'E. | 4493 miles, 245.6°T | 4598 miles, 245.6°T | 4582 miles, 245.6°T | 4436 miles, 245.3°T | Great Circle Sailing |
B | Determine the great circle distance and initial course from LAT 25°50.0'N, LONG 77°00.0'W to LAT 35°56.0'N, LONG 06°15.0'W. | 3718 miles, 118°T | 3616 miles, 062°T | 3470 miles, 298°T | 3518 miles, 028°T | Great Circle Sailing |
A | Determine the great circle initial course from LAT 29°46.0'S, LONG 30°26.0'E to LAT 31°52.0'S, LONG 115°22.0'E. | 117°T | 113°T | 121°T | 074°T | Great Circle Sailing |
A | Determine the great circle initial course from LAT 07°05.0'N, LONG 81°45.0'W to LAT 21°15.0'N, LONG 157°40.0'W. | 290°T | 128°T | 326°T | 217°T | Great Circle Sailing |
D | Determine the great circle initial course from LAT 37°12.6'S, LONG 73°58.0'W to LAT 10°33.0'S, LONG 142°08.0'E. | 317°T | 287°T | 253°T | 223°T | Great Circle Sailing |
B | Determine the great circle distance and initial course from LAT 35°08.0'S, LONG 19°26.0'E to LAT 33°16.0'S, LONG 115°36.0'E. | 4682 miles, 059°T | 4559 miles, 121°T | 4688 miles, 126°T | 4457 miles, 126°T | Great Circle Sailing |
D | Determine the great circle distance and initial course from LAT 26°00.0'S, LONG 56°00.0'W to LAT 34°00.0'S, LONG 18°15.0'E. | 3849 miles, 248°T | 3841 miles, 068°T | 3705 miles, 153°T | 3805 miles, 117°T | Great Circle Sailing |
D | Determine the great circle distance and initial course from LAT 24°52.0'N, LONG 78°27.0'W to LAT 47°19.0'N, LONG 06°42.0'W. | 3389 miles, 042.4°T | 3367 miles, 045.0°T | 3457 miles, 053.3°T | 3593 miles, 048.1°T | Great Circle Sailing |
D | Determine the great circle distance and initial course from LAT 31°57.0'S, LONG 115°52.0'E to LAT 24°47.0'N, LONG 66°59.0'E. | 4516 miles, 134.5°T | 4378 miles, 336.8°T | 4402 miles, 319.5°T | 4407 miles, 314.5°T | Great Circle Sailing |
A | Determine the great circle distance and initial course from LAT 08°53.0'N, LONG 79°31.0'W to LAT 33°51.5'S, LONG 151°13.0'E. | 7635 miles, 233.9°T | 7809 miles, 247.0°T | 7618 miles, 230.3°T | 7763 miles, 247.0°T | Great Circle Sailing |
C | Determine the great circle distance and initial course from LAT 38°42.0'N, LONG 09°10.5'W to LAT 32°05.0'N, LONG 81°05.0'W. | 3402.0 miles, 072.5°T | 3412.6 miles, 085.8°T | 3449.4 miles, 287.2°T | 3432.0 miles, 278.3°T | Great Circle Sailing |
C | Determine the great circle distance and initial course from LAT 25°47.0'N, LONG 79°59.5'W to LAT 38°42.0'N, LONG 09°10.5'W. | 3341.0 miles, 063°T | 3427.8 miles, 061°T | 3588.6 miles, 059°T | 3347.0 miles, 063°T | Great Circle Sailing |
D | Determine the great circle distance and initial course from LAT 35°27.0'N, LONG 140°20.5'E to LAT 47°51.0'N, LONG 122°51.0'W. | 4122 miles. 076°T | 4136 miles, 076°T | 4087 miles, 036°T | 4115 miles, 045°T | Great Circle Sailing |
D | You are planning a voyage between Portland, LAT 46°05'N, LONG 124°00'W, and Korea via LAT 44°00'N, LONG 155°00'E. Which statement is TRUE? (Use gnomonic tracking chart WOXZC 5270) | Distance is measured in 60-mile segments using the length of a degree of latitude at the mid-latitude. | The vertex of the great circle track is north of the Aleutian Islands. | You can sail a great circle track between the two points. | You can steam on course 270°T, at latitude 52°N, between longitudes 149°W and 160°W in a composite sailing. | Great Circle Sailing |
B | You are on a voyage from Nome to Honolulu via Unimak Pass (LAT 54°30'N, LONG 164°30'W). The great circle track passes through a point at LAT 38°00'N, LONG 161°40'W. Using gnomonic chart WOXZC 5270, determine which answer is TRUE. (The great circle distance, Unimak Pass to Honolulu, is 2013 miles.) | The northern vertex of the great circle track would lie between Unimak Pass and Nome. | A great circle course would offer no significant advantage because the rhumb line course is close to 180°. | A great circle track results in a significant savings in distance when compared to a rhumb line. | Distance of the great circle track is measured by using the length of degree of latitude at the mid-latitude of the track. | Great Circle Sailing |
D | You are on a voyage via position LAT 44°00'N, LONG 150°00'E to LAT 46°15'N, LONG 124°00'W. Using gnomonic chart WOXZC 5270, determine which statement is TRUE? | The Aleutian Islands are not a navigational hazard on the direct great circle track. | The northern hemisphere vertex is east of the arrival position. | The final course angle lies in the northeast quadrant. | A composite sailing with a limiting latitude of 51°N will clear the Aleutian Islands. | Great Circle Sailing |
B | You are planning a voyage from departure Seattle (LAT 48°30'N, LONG 125°00'W) to a position at LAT 44°00'N, LONG 161°00'E. Which statement is TRUE? (Use gnomonic chart WOXZC 5270.) | At your highest latitude, the sun will be visible at upper and lower transit if the voyage occurs on 21 June. | Military exercises north of 53°N, between 150°W and 165°W, will not affect your voyage. | The northern hemisphere vertex lies to the west of your arrival position. | You must plot a composite sailing to remain south of the Aleutians. | Great Circle Sailing |
D | Which statement about a great circle track between Cape Flattery (LAT 48°30'N, LONG 125°00'W) and Guam (LAT 14°00'N, LONG 145°00'E) is TRUE? (Use gnomonic tracking chart WOXZC 5270) | The entire track line is to the west of the Northern Hemisphere vertex. | Distance is measured by determining the length of a line in minutes of arc from the midpoint of the track to the point of tangency. | When plotted on a Mercator chart the great circle track will appear as an S curve with the curve reversing at the latitude of the point of tangency (30°N). | Military exercises being carried out within a 150 mile radius of LAT 47°10'N, LONG 137°30'W will interfere with the proposed track line. | Great Circle Sailing |
A | Using gnomonic tracking chart WOXZC 5270, determine which of the following statements about a voyage from Valdez, AK, to Hilo, HI, is TRUE. | A great circle track is not significantly shorter than a rhumb line track. | When plotted on a Mercator chart, the track line will be convex to San Francisco. | You will cross the Northern Hemisphere vertex where the track line crosses LAT 45°N. | Distance is measured by using the length of a degree of longitude at the mid-latitude line. | Great Circle Sailing |
C | Using gnomonic tracking chart WOXZC 5270, determine which of the following statements about a voyage from San Francisco to San Bernardino Strait (LAT 13°00'N, LONG 125°30'E) is TRUE. | The entire track line is west of the Northern Hemisphere vertex. | Distance is measured using the length of a degree of longitude at the point of tangency. | You will cross the Northern Hemisphere vertex at the approximate longitude of 159°W. | A composite sailing should be used to avoid the Bonin Islands. | Great Circle Sailing |
C | On which voyage would a great circle track provide a significant savings in distance to steam, when compared to a rhumb line track? (Use gnomonic tracking chart WOXZC 5270.) | Christmas Island (LAT 2°00'N, LONG 157°30'W) to Singapore via LAT 3°00'N, LONG 126°00'E | San Francisco to Kodiak, AK | Guam (LAT 14°00'N, LONG 145°00'E) to Seattle via LAT 47°30'N, LONG 125°30'W | Valdez, AK, to the Marquesas Islands (LAT 8°00'S, LONG 140°00'W) | Great Circle Sailing |
B | In planning a North Pacific voyage, you wish to steam the minimum distance from LAT 48°30'N, LONG 124°45'W to LAT 44°00'N, LONG 150°00'E, while remaining south of 51°N latitude. Which track meets these requirements? (Use gnomonic tracking chart WOXZC 5270) | A Mercator sailing from departure to the mid-longitude at 51°N, thence great circle to arrival | A great circle from departure to LAT 51°N, LONG 148°W, parallel sailing to LAT 51°N, LONG 171°W, then a great circle to arrival | A great circle between departure and arrival with parallel sailing between the longitudes where the great circle intersects 51°N | A great circle tangent to 51°N from departure to the mid-longitude then a great circle to arrival | Great Circle Sailing |
D | On a North Pacific voyage, you wish to sail the shortest distance from LAT 46°05'N, LONG 124°00'W to LAT 44°00'N, LONG 150°00'E. You do not want to exceed 50°N latitude due to anticipated fog conditions. Which voyage plot meets these requirements? (Use gnomonic tracking chart WOXZC 5270) | A great circle between departure and arrival with Mercator legs north of the Aleutians | A great circle between departure and arrival with parallel sailing where the track intersects the 50°N parallel | A great circle from departure to the mid-longitude at 50°N, then another great circle to arrival | A great circle to 50°N, 153°W, parallel sailing to 50°N, 173°W, then a great circle to arrival | Great Circle Sailing |
D | You are planning a voyage from LAT 48°30'N, LONG 125°00'W to Korea via LAT 48°30'N, LONG 153°00'E. Which of the following track lines would you select for the safest and most direct route? (Use gnomonic tracking chart WOXZC 5270) | Parallel sailing along 48°30'N | Rhumb line track between the two points | Great circle track line between the two points | Great circle to LAT 51°00'N, LONG 178°00'W, parallel sailing for 80 miles, then great circle to the via point | Great Circle Sailing |
C | You are planning a voyage by great circle from Reykjavik (LAT 63°30'N, LONG 24°00'W) to the Azores (LAT 39°30'N, LONG 29°00'W). Which statement is TRUE? (Use gnomonic tracking chart WOXZC 5274) | When plotted on a Mercator chart, the great circle track will be convex to the British Isles. | The Northern Hemisphere vertex lies south of Reykjavik. | The great circle track is not appreciably shorter than a rhumb line track. | The distance is measured in sixty-mile segments based on the length of a degree of latitude at the mid-latitude and mid-longitude position. | Great Circle Sailing |
B | On a voyage via the southern tip of Nova Scotia (LAT 43°20'N, LONG 65°35'W) you wish to sail the shortest route to La Coruna, Spain (LAT 43°20'N, LONG 8°24'W). Which of the following will require you to plot a composite sailing? (Use gnomonic tracking chart WOXZC 5274) | Naval exercises using live ammunition being conducted within a 150 mile radius of LAT 49°00'N, LONG 20°00'W | Icebergs reported extending west to west-northwest from LAT 47°00'N, LONG 35°00'W | Shoals extending 15 miles from Sable Island | Sea ice reported 68 miles ESE of St. John's, Newfoundland | Great Circle Sailing |
A | Your voyage commences off Cape May, NJ, at LAT 38°40'N, LONG 74°00'W, for LAT 44°00'N, LONG 10°00'W. Sea ice is north of 45°N and west of 45°W. Extensive naval exercises will be conducted within a 150-mile radius of LAT 50°00'N, LONG 35°00'W. Which statement about a direct great circle route is TRUE? (Use gnomonic tracking chart WOXZC 5274.) | You must plot a composite sailing to remain south of the ice limits. | The shifting shoals northwest of Sable Island will be a navigational hazard on the track line. | The naval exercises will interfere with the direct great circle route. | The latitude of the great circle vertex is above 50°N. | Great Circle Sailing |
D | You are planning a voyage by great circle from LAT 38°00'N, LONG 73°00'W to LAT 49°00'N, LONG 06°00'W. Which of the following statements is TRUE? (Use gnomonic tracking chart WOXZC 5274) | You will reach the maximum northerly latitude at longitude 29°45'W. | You will pass to the south of icebergs reported extending to 100 miles south of Cape Race Newfoundland. | The distance is measured in 60-mile segments using the length of a degree of latitude at the vertex. | The shoals with a 25-mile radius around Sable Island will be a hazard. | Great Circle Sailing |
B | You are on a voyage from Cape May (LAT 39°50'N, LONG 74°45'W) to the English Channel (LAT 49°00'N, LONG 05°00'W). What will NOT prohibit the use of a great circle track from departure to arrival? (Use gnomonic chart WOXZC 5274.) | Icebergs north of 48°N and west of 49°W | The high latitude in which the vertex lies | Islands approximately 50 miles south of Cape Cod | Newfoundland | Great Circle Sailing |
A | A great circle track would be most advantageous when compared to the rhumb line track on which route? (Use gnomonic tracking chart WOXZC 5274) | Palm Beach, FL, to the English Channel | Recife, Brazil, to Monrovia | Natal, Brazil, to Reykjavik, Iceland | Cayenne (LAT 4°40'N, LONG 52°15'W) to Sao Tome (LAT 0°00', LONG 6°45'E) | Great Circle Sailing |
D | You are planning a voyage from Godthab, Greenland, to Cayenne, French Guiana. Using chart WOXZC 5274, determine which statement is TRUE. | Distance is measured by using the length of meridian at the point of tangency. | A great circle track will be considerably shorter due to the length of the voyage. | Godthab is located at the Northern Hemisphere vertex. | The rhumb line track approximates a great circle track. | Great Circle Sailing |
D | You are planning a voyage from Jacksonville, FL, to the Strait of Gibraltar. Using chart WOXZC 5274, determine which statement is TRUE. | The great circle track approximates a rhumb line track because there is little difference in the latitudes. | All of the courses lie in the northeast quadrant of the compass. | You will be east of the Northern Hemisphere vertex during the entire voyage. | None of the above are true. | Great Circle Sailing |
D | On which voyage would a great circle track be significantly shorter than a rhumb line track? (Use gnomonic tracking chart WOXZC 5274) | Boston to Sable Island | Dublin, Ireland (Irish Sea), to La Coruna, Spain (LAT 43°22'N, LONG 8°24'W) | Reykjavik, Iceland, to Lisbon, Portugal | Savannah, GA, to Lisbon, Portugal | Great Circle Sailing |
A | You are planning a voyage by great circle to Reykjavik, Iceland, via Cape Race, Newfoundland, LAT 46°30'N, LONG 53°00'W. Which statement is TRUE? (Use gnomonic tracking chart WOXZC 5274) | You will reach the northernmost latitude in the vicinity of Reykjavik. | The track line will be concave to Cape Farewell (Kap Farvel) when plotted on a Mercator chart. | The Northern Hemisphere vertex is in the vicinity of 49°W longitude. | The distance is measured using the length of a degree of latitude at the mid-latitude and mid-longitude position. | Great Circle Sailing |
A | You are planning a voyage by great circle from the mouth of the Delaware River (LAT 38°40'N, LONG 75°00'W) to Lisbon, Portugal. Which statement is TRUE? (Use gnomonic tracking chart WOXZC 5274.) | You will reach the northernmost latitude of the voyage in the vicinity of LONG 42°30'W. | The Northern Hemisphere vertex lies to the east of Lisbon. | The distance is measured in 60-mile segments using the length of the degree of latitude crossed by the track line. | You must plot a composite sailing to remain south of icebergs reported north of 44°N. | Great Circle Sailing |
A | You are planning a voyage by great circle from LAT 59°00'N, LONG 07°00'W via LAT 38°00'N, LONG 61°30'W. Which of the following statements is TRUE? (Use gnomonic tracking chart WOXZC 5274) | All courses are in the southwest quadrant of the compass. | You are to the east of the Northern Hemisphere vertex. | Distance is measured by using the length of a degree of latitude at the midpoint of the track line. | When plotted on a Mercator chart the track line will be concave to Cape Farwell (Kap Farvel). | Great Circle Sailing |
D | You are planning a voyage from Cape May (LAT 38°45'N, LONG 74°45'W) to Lisbon (LAT 38°37'N, LONG 09°45'W). Which of the following is TRUE? (Use gnomonic chart WOXZC 5274) | Because the latitudes are almost the same, a great circle track approximates a parallel sailing. | The distance is measured by using the length of one degree of the meridian at the position of the vertex. | A composite sailing must be plotted to remain south of a limiting latitude of 44°N. | The northern hemisphere vertex is approximately at longitude 42°26'W. | Great Circle Sailing |
B | The great circle distance from LAT 25°50'N, LONG 77°00'W to LAT 35°56'N, LONG 06°15'W is 3616 miles, and the initial course is 061.7°T. The position of the vertex is LAT 37°34.9'N, LONG 25°59.0'W. The difference of longitude from the vertex to a point (X) on the great circle track is 10°W. Determine the latitude which intersects the great circle at point (X). | 37°02.5'N | 37°09.5'N | 37°15.6'N | 37°21.2'N | Great Circle Sailing |
D | The great circle distance from LAT 25°50'N, LONG 77°00'W to LAT 35°56'N, LONG 06°15'W is 3616 miles, and the initial course is 061.7°T. The position of the vertex is LAT 37°34.9'N, LONG 25°59.0'W. Determine the latitude intersecting the great circle track 600 miles west of the vertex, along the great circle track. | 36°36.8'N | 36°50.2'N | 36°45.9'N | 36°54.9'N | Great Circle Sailing |
B | You are on a great circle track departing from position LAT 25°50'N, LONG 77°00'W. The position of the vertex is LAT 37°35.6'N, LONG 25°57.8'W. The distance along the great circle track from the vertex to a point (X) is 600 miles westward. Determine the position of point (X) on the great circle track. | LAT 36°50.4'N, LONG 38°25.6'W | LAT 36°55.6'N, LONG 38°30.0'W | LAT 36°47.5'N, LONG 38°21.8'W | LAT 37°02.3'N, LONG 38°34.4'W | Great Circle Sailing |
A | You are on a great circle track departing from LAT 25°50.0'N, LONG 77°00.0'W and your initial course is 061.7°T. The position of the vertex is LAT 37°35.6'N, LONG 25°57.8'W. What is the distance along the great circle track between the point of departure and the vertex? | 2664.9 miles | 2420.0 miles | 2735.1 miles | 2583.2 miles | Great Circle Sailing |
D | A vessel at LAT 32°05.0'N, LONG 81°06.0'W, heads for a destination at LAT 35°57.0'N, LONG 5°45.0'W. Determine the distance by Mercator sailing. | 4126.1 miles | 4508.0 miles | 3128.2 miles | 3770.6 miles | Mercator Sailing |
C | Your vessel departs LAT 32°45'N, LONG 79°50'W, and is bound for LAT 34°21'S, LONG 18°29'E. Determine the distance by Mercator sailing. | 5,021 miles | 7,002 miles | 6,884 miles | 6,954 miles | Mercator Sailing |
C | You depart LAT 32°16.6'N, LONG 68°28.0'W. What is the course and distance as calculated by Mercator sailing to a position at LAT 43°12.2'N, LONG 55°39.0'W? | 049.1°T, 955.1 miles | 132.8°T, 896.2 miles | 042.8°T, 896.2 miles | 136.6°T, 955.1 miles | Mercator Sailing |
C | A vessel at LAT 11°22'S, LONG 009°18'E heads for a destination at LAT 06°52'N, LONG 57°23'W. Determine the true course and distance by Mercator sailing. | 296°T, 3,825.3 miles | 285°T, 3,825.3 miles | 285°T, 4,154.2 miles | 296°T, 4,154.2 miles | Mercator Sailing |
D | Your vessel receives a distress call from a vessel reporting her position at LAT 5°24'N, LONG 31°16'W. Your position is LAT 2°39'S, LONG 39°24'W. Determine the distance from your vessel to the vessel in distress by Mercator sailing. | 669.3 miles | 712.9 miles | 699.2 miles | 688.7 miles | Mercator Sailing |
B | Your vessel receives a distress call from a vessel reporting her position as LAT 35°01'S, LONG 18°51'W. Your position is LAT 30°18'S, LONG 21°42'W. Determine the true course from your vessel to the vessel in distress by Mercator sailing. | 160°T | 153°T | 149°T | 135°T | Mercator Sailing |
D | A vessel at LAT 38°36'N, LONG 11°36'W, heads for a destination at LAT 24°16'N, LONG 71°52'W. Determine the true course and distance by Mercator sailing. | 254.4°T, 2,916.9 miles | 285.6°T, 3,203.6 miles | 236.4°T, 2,916.9 miles | 254.4°T, 3,203.6 miles | Mercator Sailing |
A | You receive a distress call from a vessel reporting her position as LAT 30°21'N, LONG 88°34'W. Your position is LAT 24°30'N, LONG 83°00'W. Determine the true course and distance to the distress scene by Mercator sailing. | 320°T, 460 miles | 324°T, 460 miles | 322°T, 455 miles | 317°T, 470 miles | Mercator Sailing |
D | A vessel at LAT 49°45'N, LONG 6°35'W, heads for a destination at LAT 25°50'N, LONG 77°00'W. Determine the true course and distance by Mercator sailing. | 253.0°T, 3648 miles | 066.4°T, 3602 miles | 268.6°T, 3483 miles | 246.5°T, 3597 miles | Mercator Sailing |
D | A vessel at LAT 33°45'N, LONG 118°30'W, heads for a destination at LAT 21°15'N, LONG 157°36'W. Determine the true course and distance by Mercator sailing. | 289.2°T, 2413 miles | 109.8°T, 2196 miles | 236.3°T, 2259 miles | 250.2°T, 2216 miles | Mercator Sailing |
D | A vessel at LAT 18°54'N, LONG 73°00'E, heads for a destination at LAT 13°12'N, LONG 54°00'E. Determine the true course and distance by Mercator sailing. | 247°T, 1161 miles | 250°T, 1172 miles | 256°T, 1136 miles | 253°T, 1154 miles | Mercator Sailing |
D | A vessel at LAT 21°18.5'N, LONG 157°52.2'W, heads for a destination at LAT 8°53.0'N, LONG 79°31.0'W. Determine the true course and distance by Mercator sailing. | 081°T, 4915.8 miles | 081°T, 4617.5 miles | 099°T, 4915.8 miles | 099°T, 4617.5 miles | Mercator Sailing |
A | A vessel at LAT 21°32'N, LONG 160°30'W, heads for a destination at LAT 30°00'N, LONG 150°00'E. Determine the true course and distance by Mercator sailing. | 281°T, 2733 miles | 284°T, 2762 miles | 273°T, 2692 miles | 273°T, 2645 miles | Mercator Sailing |
B | A vessel at LAT 29°38.0'N, LONG 93°49.0'W, heads for a destination at LAT 24°38.0'N, LONG 82°55.2'W. Determine the true course and distance by Mercator sailing. | 122°T, 648 miles | 117°T, 658 miles | 115°T, 637 miles | 126°T, 665 miles | Mercator Sailing |
C | A vessel at LAT 40°42.0'N, LONG 74°01.0'W, heads for a destination at LAT 14°41.0'N, LONG 17°26.0'W. Determine the true course and distance by Mercator sailing. | 118°T, 3066.5 miles | 123°T, 3065.6 miles | 118°T, 3365.0 miles | 123°T, 3066.5 miles | Mercator Sailing |
D | A vessel at LAT 32°14.7'N, LONG 66°28.9'W, heads for a destination at LAT 36°58.7'N, LONG 75°42.2'W. Determine the true course by Mercator sailing. | 348.3°T | 235.2°T | 058.2°T | 301.8°T | Mercator Sailing |
D | A vessel at LAT 32°14.7'N, LONG 66°28.9'W, heads for a destination at LAT 36°58.7'N, LONG 75°42.2'W. Determine the distance by Mercator sailing. | 300.2 miles | 241.2 miles | 270.2 miles | 538.2 miles | Mercator Sailing |
A | A vessel at LAT 38°03.0'S, LONG 49°38.0'W, heads for a destination at LAT 41°26.0'S, LONG 38°32.0'W. Determine the true course by Mercator sailing. | 111.5°T | 113.5°T | 158.5°T | 160.5°T | Mercator Sailing |
D | A vessel at LAT 45°36.0'N, LONG 11°36.0'W, heads for a destination at LAT 24°16.0'N, LONG 73°52.0'W. Determine the true course and distance by Mercator sailing. | 251°T, 3298.5 miles | 251°T, 3951.6 miles | 247°T, 3951.6 miles | 247°T, 3299.3 miles | Mercator Sailing |
B | A vessel at LAT 10°22.0'S, LONG 7°18.0'E, heads for a destination at LAT 6°52.0'N, LONG 57°23.0'W. Determine the true course and distance by Mercator sailing. | 296°T, 3825.3 miles | 285°T, 4025.7 miles | 285°T, 3825.3 miles | 296°T, 4025.7 miles | Mercator Sailing |
A | You depart LAT 40°42.0'N, LONG 74°01.0'W, and steam 3365.6 miles on course 118°T. What is the longitude of your arrival by Mercator sailing? | 17°41.0'W | 24°29.0'W | 22°58.0'W | 10°46.0'W | Mercator Sailing |
B | You depart LAT 22°35.0'N, LONG 157°30.0'W, and steam 4505.0 miles on course 135°T. What are the latitude and longitude of your arrival by Mercator sailing? | 30°30.5'S, 104°30.0'W | 30°30.5'S, 102°35.3'W | 32°20.0'S, 104°30.0'W | 32°20.0'S, 102°35.3'W | Mercator Sailing |
B | A vessel steams 1650 miles on course 077°T from LAT 12°47'N, LONG 45°10'E. What is the latitude and longitude of the point of arrival by Mercator sailing? | LAT 19°02'N, LONG 72°44'E | LAT 18°58'N, LONG 72°52'E | LAT 18°54'N, LONG 72°58'E | LAT 19°06'N, LONG 72°36'E | Mercator Sailing |
A | A vessel steams 1106 miles on course 249°T from LAT 13°30.0'N, LONG 144°30.3'E. What is the latitude and longitude of the point of arrival by Mercator sailing? | LAT 06°54.0'N, LONG 127°08.0'E | LAT 06°50.0'N, LONG 127°13.0'E | LAT 06°46.0'N, LONG 127°17.0'E | LAT 07°01.0'N, LONG 127°02.0'E | Mercator Sailing |
B | You depart LAT 33°45.0'N, LONG 118°30.0'W, and steam 2216 miles on course 250°T. What is the longitude of your arrival by Mercator sailing? | LONG 156°08.0'W | LONG 157°31.0'W | LONG 156°36.0'W | LONG 157°21.0'W | Mercator Sailing |
C | You depart LAT 49°45.0'N, LONG 06°35.0'W, and steam 3599 miles on course 246.5°T. What is the longitude of your arrival by Mercator sailing? | LONG 78°22.6'W | LONG 78°14.0'W | LONG 77°02.8'W | LONG 76°36.2'W | Mercator Sailing |
A | You depart LAT 34°22'S, LONG 18°23'E, and steam 3174 miles on course 282°T. What is the longitude of your arrival by Mercator sailing? | LONG 40°33.5'W | LONG 40°19.5'W | LONG 40°17.3'W | LONG 40°18.2'W | Mercator Sailing |
D | You depart LAT 37°36'N, LONG 123°00'W, and steam 2022 miles on course 241°T. What is the longitude of your arrival by Mercator sailing? | LONG 163°18.2'W | LONG 154°18.3'W | LONG 163°28.2'W | LONG 156°51.7'W | Mercator Sailing |
D | A vessel steams 1082 miles on course 047°T from LAT 37°18.0'N, LONG 24°40.0'W. What is the latitude and longitude of the point of arrival by Mercator sailing? | LAT 49°30.0'N, LONG 06°22.0'W | LAT 49°33.0'N, LONG 06°25.0'W | LAT 49°39.0'N, LONG 06°31.0'W | LAT 49°36.0'N, LONG 06°28.0'W | Mercator Sailing |
B | A vessel steams 3312 miles on course 282°T from LAT 34°24'S, LONG 18°18'E. What is the latitude and longitude of the point of arrival by Mercator sailing? | LAT 22°42'S, LONG 43°14'W | LAT 22°55'S, LONG 43°05'W | LAT 22°39'S, LONG 43°17'W | LAT 22°47'S, LONG 43°10'W | Mercator Sailing |
C | A vessel steams 666 miles on course 135°T from LAT 40°24.0'N, LONG 74°30.0'W. What is the latitude and longitude of the point of arrival by Mercator sailing? | LAT 32°30.0'N, LONG 64°41.0'W | LAT 32°36.0'N, LONG 64°49.0'W | LAT 32°33.0'N, LONG 64°46.0'W | LAT 32°39.0'N, LONG 64°53.0'W | Mercator Sailing |
D | You depart LAT 28°55.0'N, LONG 89°10.0'W, enroute to LAT 24°25.0'N, LONG 83°00.0'W. What is the true course and distance by mid-latitude sailing? | 418 miles, 122°T | 427 miles, 129°T | 436 miles, 133°T | 442 miles, 122°T | Mid-Latitude Sailing |
B | A vessel at LAT 20°10'N, LONG 122°00'E is to proceed to LAT 26°18'N, LONG 128°20'E. What are the course and distance by mid-latitude sailing? | 044.7°T, 509.7 miles | 043.5°T, 507.3 miles | 041.9°T, 503.6 miles | 041.2°T, 501.0 miles | Mid-Latitude Sailing |
D | A vessel at LAT 07°05'N, LONG 81°45'W is to proceed to LAT 08°40'N, LONG 88°00'W. What are the course and distance by mid-latitude sailing? | 286.8°T, 387.4 miles | 283.1°T, 381.2 miles | 285.6°T, 385.0 miles | 284.3°T, 384.6 miles | Mid-Latitude Sailing |
B | A vessel at LAT 20°00'N, LONG 107°30'W is to proceed to LAT 24°40'N, LONG 112°30'W. What is the course and distance by mid-latitude sailing? | 317.2°T, 397.0 miles | 315.3°T, 394.0 miles | 318.3°T, 399.0 miles | 314.0°T, 389.0 miles | Mid-Latitude Sailing |
A | A vessel at LAT 14°10'N, LONG 61°00'W is to proceed to LAT 10°00'N, LONG 53°23'W. What is the course and distance by mid-latitude sailing? | 119.2°T, 512.0 miles | 118.6°T, 508.0 miles | 117.3°T, 503.0 miles | 117.9°T, 504.0 miles | Mid-Latitude Sailing |
A | A vessel at LAT 28°20'N, LONG 16°00'W is to proceed to LAT 21°00'N, LONG 18°00'W. What is the course and distance by mid-latitude sailing? | 194.0°T, 453.0 miles | 196.8°T, 450.0 miles | 195.2°T, 451.0 miles | 197.3°T, 448.0 miles | Mid-Latitude Sailing |
A | A vessel at LAT 28°00'N, LONG 116°00'W is to proceed to LAT 34°00'N, LONG 123°40'W. What is the course and distance by mid-latitude sailing? | 312°T, 533 miles | 323°T, 428 miles | 302°T, 539 miles | 324°T, 453 miles | Mid-Latitude Sailing |
B | A vessel steams 720 miles on course 058°T from LAT 30°06.0'S, LONG 31°42.0'E. What are the latitude and longitude of the point of arrival by mid-latitude sailing? | LAT 23°48'S, LONG 43°11'E | LAT 23°44'S, LONG 43°07'E | LAT 23°38'S, LONG 43°03'E | LAT 23°34'S, LONG 43°00'E | Mid-Latitude Sailing |
A | A vessel steams 576 miles on course 260°T from LAT 40°36'N, LONG 50°24'W. What are the latitude and longitude of the point of arrival by mid-latitude sailing? | LAT 38°56'N, LONG 62°42'W | LAT 39°06'N, LONG 62°34'W | LAT 39°12'N, LONG 62°28'W | LAT 39°02'N, LONG 62°37'W | Mid-Latitude Sailing |
B | A vessel steams 580 miles on course 083°T from LAT 13°12'N, LONG 71°12'W. What are the latitude and longitude of the point of arrival by mid-latitude sailing? | LAT 14°20'N, LONG 61°21'W | LAT 14°23'N, LONG 61°19'W | LAT 14°17'N, LONG 61°23'W | LAT 14°25'N, LONG 61°17'W | Mid-Latitude Sailing |
B | A vessel steams 666 miles on course 295°T from LAT 24°24'N, LONG 83°00'W. What are the latitude and longitude of the point of arrival by mid-latitude sailing? | LAT 29°01'N, LONG 94°18'W | LAT 29°06'N, LONG 94°16'W | LAT 29°13'N, LONG 94°06'W | LAT 29°10'N, LONG 94°10'W | Mid-Latitude Sailing |
C | A vessel steams 640 miles on course 047°T from LAT 34°45'N, LONG 140°00'E. What are the latitude and longitude of the point of arrival by mid-latitude sailing? | LAT 41°57'N, LONG 150°02'E | LAT 42°09'N, LONG 149°50'E | LAT 42°01'N, LONG 149°57'E | LAT 42°06'N, LONG 149°53'E | Mid-Latitude Sailing |
C | Your vessel receives a distress call from a vessel reporting her position as LAT 35°01.0'S, LONG 18°51.0'W. Your position is LAT 35°01.0'S, LONG 21°42.0'W. Determine the true course and distance from your vessel to the vessel in distress by parallel sailing. | 270°T, 189.2 miles | 090°T, 189.2 miles | 090°T, 140.0 miles | 270°T, 140.0 miles | Parallel Sailing |
D | You depart LAT 26°03'S, LONG 10°28'E, for LAT 26°03'S, LONG 01°16'W. What are the course and distance by parallel sailing? | 270°T, 547.2 miles | 090°T, 632.5 miles | 090°T, 547.2 miles | 270°T, 632.5 miles | Parallel Sailing |
B | Determine the distance from LAT 34°18'S, LONG 172°40'E to LAT 34°18'S, LONG 152°38'E, by parallel sailing. | 995.2 miles | 993.0 miles | 998.6 miles | 996.4 miles | Parallel Sailing |
A | You depart LAT 38°14'N, LONG 12°42'W, for LAT 38°14'N, LONG 46°09'W. What are the course and distance by parallel sailing? | 270°T, 1576.5 miles | 090°T, 1576.5 miles | 270°T, 2868.5 miles | 090°T, 2879.0 miles | Parallel Sailing |
D | You depart LAT 52°01'N, LONG 176°09'E, for LAT 52°01'N, LONG 178°46'W. What are the course and distance by parallel sailing? | 090°T, 95 miles | 270°T, 188 miles | 270°T, 95 miles | 090°T, 188 miles | Parallel Sailing |
C | You depart LAT 49°38'N, LONG 152°49'E, for LAT 49°38'N, LONG 176°12'E. What are the course and distance by parallel sailing? | 270°T, 1204 miles | 090°T, 1204 miles | 090°T, 909 miles | 270°T, 909 miles | Parallel Sailing |
A | You depart LAT 16°24'S, LONG 169°38'W, for LAT 16°24'S, LONG 174°52'E. What are the course and distance by parallel sailing? | 270°T, 892 miles | 090°T, 892 miles | 090°T, 301 miles | 270°T, 301 miles | Parallel Sailing |
B | Determine the distance from LAT 63°54.0'N, LONG 04°52.0'E to LAT 63°54.0'N, LONG 18°24.0'W by parallel sailing. | 608.6 miles | 614.2 miles | 612.3 miles | 610.9 miles | Parallel Sailing |
C | Determine the distance from LAT 19°54.0'N, LONG 166°36.0'E to LAT 19°54.0'N, LONG 157°54.0'W, by parallel sailing. | 2006.9 miles | 1990.6 miles | 2002.8 miles | 2204.6 miles | Parallel Sailing |
D | Determine the distance from LAT 23°24'S, LONG 13°54'E to LAT 23°24'S, LONG 42°48'W, by parallel sailing. | 3119.3 miles | 3124.5 miles | 3126.6 miles | 3122.2 miles | Parallel Sailing |
C | Determine the distance from LAT 59°12'N, LONG 14°00'W to LAT 59°12'N, LONG 03°20'W, by parallel sailing. | 328.9 miles | 325.4 miles | 327.7 miles | 324.2 miles | Parallel Sailing |
C | You depart LAT 25°54'N, LONG 9°38'E and steam 592 miles on course 270°. What is the longitude of arrival? | 0°40'W | 0°40'E | 1°20'W | 1°20'E | Parallel Sailing |
A | You depart LAT 38°12'S, LONG 12°06'W and steam 1543 miles on course 270°. What is the Longitude of arrival? | 44°49'W | 45°12'W | 45°37'W | 45°42'W | Parallel Sailing |
C | You depart LAT 51°48.0'S, LONG 178°35.0'W and steam 179 miles on course 270°. What is the longitude of arrival? | 179°52'W | 174°27'E | 176°36'E | 173°47'W | Parallel Sailing |
D | You depart LAT 50°06.0'N, LONG 153°06.0'E and steam 879 miles on course 090°. What is the LONG of arrival? | 175°04.0'W | 177°24.0'E | 178°36.0'W | 175°56.0'E | Parallel Sailing |
B | You depart LAT 15°48'N, LONG 174°06'E and steam 905 miles on course 090°. What is the LONG of arrival? | 172°47'W | 170°13'W | 165°41'W | 179°06'E | Parallel Sailing |