Sailing Directions for the West Coasts of Mexico and Central America: From the United States to Colombia Including the Gulfs of California and Panama |
From inside the book
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Page 5
... appear as straight lines . There is distortion on these charts at points some distance from the point of tangency of the plane of projection , and on them the rhumb line is curved . The polar chart , a special form of the great circle ...
... appear as straight lines . There is distortion on these charts at points some distance from the point of tangency of the plane of projection , and on them the rhumb line is curved . The polar chart , a special form of the great circle ...
Page 10
... appear equally distant from the observer even when at widely varying distances . The vessel's position should be fixed at all times , even when entering ports considered safe and easy of access , and should be constantly checked , using ...
... appear equally distant from the observer even when at widely varying distances . The vessel's position should be fixed at all times , even when entering ports considered safe and easy of access , and should be constantly checked , using ...
Page 28
... appears to be comprised between the Equator and the parallel of 8 ° N. , its greatest width is never more than 5 ° of latitude , and it generally keeps between latitude 5 ° N. and 8 ° N. The velocity of the current appears to be from 2 ...
... appears to be comprised between the Equator and the parallel of 8 ° N. , its greatest width is never more than 5 ° of latitude , and it generally keeps between latitude 5 ° N. and 8 ° N. The velocity of the current appears to be from 2 ...
Page 36
... appear in advance of the lower clouds . The cirrus clouds are often brilliantly colored at sunset and sunrise so that a red sky is one of the signs of the approach of a cyclone . Tropical cyclones of the eastern North Pacific . - Nine ...
... appear in advance of the lower clouds . The cirrus clouds are often brilliantly colored at sunset and sunrise so that a red sky is one of the signs of the approach of a cyclone . Tropical cyclones of the eastern North Pacific . - Nine ...
Page 38
... appear a light brown in color . Banks with a fathom or more of water over them appear a clear green , deepening to a darker green as the water increases in depth , and changing to a deep blue when out of soundings . Under favorable ...
... appear a light brown in color . Banks with a fathom or more of water over them appear a clear green , deepening to a darker green as the water increases in depth , and changing to a deep blue when out of soundings . Under favorable ...
Common terms and phrases
1½ mile 15 fathoms Amapala anchor anchorage bank bearing bight bluff point boats Boca buoys canal Cape Cape Corrientes Cerro channel cliffs close close-to cove curve dangers detached rocks east eastern side Ensenada entrance point Estero extends extremity fathoms feet high Guaymas gulf H. O. Chart harbor headland high water interval hills Hydrographic Office Isla Isla Saboga island islet lagoon land lies light is shown Light List Lobos Island low and sandy low water Magdalena Bay mainland Manzanillo Mazatlan mile offshore miles eastward miles long miles northward miles northwestward miles southeastward miles wide Morro mountains mouth navigation northern northwestern outer Panama peak pier pilot port Punta reef rises river rocky bluff Salina Cruz San José sand beach Santa sea breaks shoal water shore situated southern end southward sunken rocks tidal currents tide Topolobampo vessels vicinity ward weather western westward width winds
Popular passages
Page 24 - The highest and lowest of these lights shall be red, and the middle light shall be white, and they shall be of such a character as to be visible all round the horizon, at a distance of at least 2 miles.
Page 1 - Department, for the improvement of the means for navigating safely the vessels of the Navy and of the mercantile marine, by providing, under...
Page 378 - Rules and Regulations Governing Navigation of the Panama Canal and Adjacent Waters," as contained in Executive Order No.
Page 3 - Equator. 1907 1. 50 127 Star Identification Tables, giving simultaneous values of declination and hour angle for values of latitude, altitude, and azimuth ranging from 0° to 80° in latitude and altitude and 0° to 180° in azimuth.
Page 24 - ... 6 feet apart. At night two red lights shall be displayed in the same manner. In the case of a small vessel the distance between the balls and between the lights may be reduced to not less than 3 feet if necessary.
Page 23 - A gun or other explosive signal fired at intervals of about a minute. 2. The International Code signal of distress indicated by NC 3. The distant signal, consisting of a square flag, having either above or below it a ball or anything resembling a ball. 4. A continuous sounding with any fog-signal apparatus.
Page 15 - For a boat riding in bad weather from a sea anchor, it is recommended to fasten the bag to an endless line rove through a block on the sea anchor, by which means the oil can be diffused well ahead of the boat and the bag readily hauled on board for refilling, if necessary.
Page 9 - The intrinsic power of a light should always be considered when expecting to make it in thick weather. A weak light is easily obscured by haze, and no dependence can be placed on its being seen. The power of a light can be estimated by its candlepower or order, as stated in the Light Lists, and in some cases by noting how much its visibility in clear weather falls short of the range corresponding to its height.
Page 24 - A vessel of the Coast and Geodetic Survey, when at anchor in a fairway on surveying operations, shall display from the mast during the daytime two black balls in a vertical line and 6 feet apart. At night two red lights shall be displayed in the same manner. In the case of a small vessel the distance between the balls and between the lights may be reduced to 3 feet if necessary.
Page 23 - In the daytime — 1. A gun fired at intervals of about a minute. 2. The International Code signal of distress indicated by N C. 3. The distant signal, consisting of a square flag, having either above or below it a ball, or anything resembling a ball.