C
CABIN to To CALK, or CAULK
CALL to CANNON
CANNON to CANOE
CANOE to To rig the CAPSTERN
Surge the CAPSTERN to CARPENTER of a ship
CARTEL to CATS-PAW
CAULKING to CHANNEL
CHANNELS to CHEARLY
CHEEKS of the mast to CLINCH
CLINCHER-WORK to COASTING-PILOT
COAT to COLLIERS
COLOURS to COMPASS
COMPASSING to COVE
COUNTER to CRAWL
CREEPER to CROW-FOOT
CROWNING to CUT-WATER
CROWNING
CRUISE
CUDDY
CUNNING
CURRENT
CUTTER
CUTTING-DOWN LINE
CUT-WATER
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CURRENT (continued)
If a current sets directly against the ship's course, then her motion is retarded in proportion to the strength of the current. Hence it is plain, 1. If the velocity of the current be less than that of the ship, then the ship will advance so much as is the difference of these velocities. 2. If the velocity of the current be more than that of the ship, then will the ship fall as much astern as is the difference of these velocities. 3. If the velocity of the current be equal to that of the ship, then will the ship stand still, the one velocity destroying the other.If the current thwarts the course of a ship, it not only diminishes or increases her velocity, but gives her a new direction, compounded of the course the steers, and the setting of the current, as appears by the following
If a body at A be impelled by two forces at the same time, the one in the direction A B, carrying it from A to B in a certain space of time, and the other in the direction A D, pushing it from A to D in the same time; complete the parallelogram A B C D, and
draw the diagonal A C: then the body at A, (which let us suppose a ship agitated by the wind and current; A B being the line along which she advances as impressed by the wind, and A D the line upon which she is driven by the current) will move along the diagonal A C, and will be in the point C, at the end of the time in which it would have moved along A D or A B, as impelled by either of those forces, (the wind or current) separately.
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Reference Works |  |
© Derived from Thomas Cadell's new corrected edition, London: 1780, page 93, 2003
Prepared by Paul Turnbull
http://southseas.nla.gov.au/refs/falc/0402.html