 ... to the depth of 80 or 100 fathoms ; then heave the log, and the number of knots run out in half a minute will be the miles the current sets per hour, and the bearing of the log will show the set of it. There is a very remarkable current, called the...  New American Practical Navigator - Side 1261880Uten tilgangsbegrensning - Om denne boken
 | John Hamilton Moore - 1791 - 578 sider
...of 80 or TOO Fathoms^ ' when it can be, whereby the Boat will ride almoft as fteady as at Anchor j then heave the Log, and the Number of Knots run out in Half a Minute, will give the Miles which the Current runs per Hour, and the Bearing of the Log ihews the Setting of the... | |
 | John Hamilton Moore - 1807 - 586 sider
...depth of 80 or 100 fathoms when it can be, whereby the boat will ride almoft as fteady as at anchor, then heave the log, and the number of knots run out in half a minute will give the miles which the current runs per hour, and the bearing of the log Ihews the fetting of the... | |
 | John Hamilton Moore - 1807 - 676 sider
...depth of 80 or 100 fathoms when it can be, whereby the boat will ride almoft a» fteady as at anchor, then heave the log, and the number of knots run out in half a minute will give the miles which the current runs per hour, and the bearing of the log (hews the fetting of the... | |
 | 1808 - 728 sider
...depth ef about loo fathoms: then, the log being low, its bearing will be the fitting of the current ; and the number of knots run out in half a minute will be its drift. When in fight of land, the fetting and drift of a current may be found, by obforving fome... | |
 | Charles Hutton - 1815 - 686 sider
...100 fathoms, when it can be done : by which means the boat will ride almost as steady as at anchor. Then heave the log, and the number of knots run out in half a minute will give the rate of the current, or the miles \vhich it runs per hour; and the hearing of the log shows... | |
 | Nathaniel Bowditch - 1826 - 764 sider
...from the ship : and by a rope fastened to the. boat's stern, let down a heavy iron pot or loaded kettM to the depth of 80 or 100 fathoms ; then heave the...remarkable current, called the GULF STREAM, which sets in a north-east direction along the coast of America, from Cape Florida towards the Isle of Sables, at... | |
 | Nathaniel Bowditch - 1826 - 732 sider
...or four men take a boat a little way from the ship : and by a rope fastened to the boat's stern, let down a heavy iron pot or loaded kettle to the depth...the number of knots run out in half a minute will he, the miles the current sets per hour, and the hearing of the log will show the set of it. There... | |
 | Nathaniel Bowditch - 1846 - 854 sider
...or loaded kettle to the depth of 80 or 100 fathoms; then heave the log, and the number of knots ran out in half a minute will be the miles the current...remarkable current, called the Gulf Stream, which sets, in a north-east direction along the coast of America, from Cape Florida towards the Isle of Sables, at... | |
 | Edward Weller (F.R.G.S.), James Bryce - 1871 - 208 sider
...called knots, each knot being the same part of a nautical mile that half a minute is of an hour. Hcnco, the number of knots run out in half a minute will be equal to the number of nautical miles that the ship sails in an hour. The length of one knot should... | |
 | John William Norie, J. W. Saul - 1917 - 642 sider
...nearly as steady as at anchor ; then the log being hove, its bearing will be the setting of the current, and the number of knots run out in half a minute will be its drift per hour. This method is, however, very uncertain, owing to the effect of submarine currents.... | |
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