|
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 |
