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according amplitude azimuth barometer binnacle blade boats chart chip log column Comp compass bearing compass course Consult Art corresponding course and distance danger angle diagram Diff difference of latitude difference of longitude direction distance run east easterly equator error Example feet Find the deviation follows given Grand Marais harbor helm Hence horizon instrument knots Lake Huron LAKE NAVIGATION latitude and longitude leeway light lighthouse magnetic bearing Magnetic course means measured meridian method middle latitude minutes nautical miles needle object observer parallel ruler parallel sailing pass pilot pitch plane sailing pole port position propeller revolutions per minute Rule sailing screw sextant ship ship's head side Signal mast Solut1on speed standard compass starboard statute miles steam vessel steamer steered storm center sun's tion Traverse Tables true azimuth true course variation weather whistle wind
Страница 36 - On the starboard side a green light so constructed as to show an unbroken light over an arc of the horizon of 10 points of the compass, so fixed as to throw the light from right ahead to two points abaft the beam...
Страница 39 - When two steam- vessels are meeting end on, or nearly end on, so as to involve risk of collision, each shall alter her course to starboard, so that each may pass on the port side of the other.
Страница 30 - ... when she shall have arrived within half a mile of such curve or bend, shall give a signal by one long blast of the...
Страница 31 - ... shall be deemed to be an overtaking vessel; and no subsequent alteration of the bearing between the two vessels shall make the overtaking vessel a crossing vessel within the meaning of these rules, or relieve her of the duty of keeping clear of the overtaken vessel until she is finally past and clear.
Страница 31 - In obeying and construing these rules due regard must be had to all dangers of navigation ; and due regard must also be had to any special circumstances which may exist in any particular case rendering a departure from the above rules necessary in order to avoid immediate danger.
Страница 36 - ... points abaft the beam on the starboard side, and of such a character as to be visible at a distance of at least two miles.
Страница 39 - A vessel which is close-hauled on the port tack shall keep out of the way of a vessel which is close-hauled on the starboard tack. (c) "When both are running free, with the wind on different sides, the vessel which has the wind on the port side shall keep out of the way of the other.
Страница i - ... a bright white light, so constructed as to show an unbroken light over an arc of the horizon of 20 points of the compass, so fixed as to throw the light 10...
Страница 51 - A man on shore beckoning by day, or two torches burning near together by night, will signify, " This is the best place to land." Any of these signals may be answered from the vessel as follows: In the daytime, by waving a flag, a handkerchief, a hat, or even the hand ; at night, by firing a rocket, a blue light, or a gun, or by showing a light over the ship's gunwale for a short time and then concealing it.