To sail as close as possible towards the wind.
PISTON HANKS: Snap-on devices for attaching a sail to a stay.
PITCH: 1) The alternate rise and fall of the bow of a vessel proceeding through waves. 2) The theoretical distance advanced by a propeller in ...
propeller
A rotating multi-blade device that propels a boat through the water.
pulpit
Forward deck and railing structure at the bow of a boat.
Propeller Shaft
A rotating shaft that transmits power from the engine to the propeller.
Prototype ...
Propeller
An object with two or more twisted blades, designed to propel a vessel through the water when spun rapidly by the boat's engine.
Propeller shaft
The spinning shaft from the engine to which the propeller is attached.
PropellerA rotating device, with two or more blades, that acts as a screw in propelling a vessel.
TOP
Q ...
Propeller not turning
Debris caught in propeller
Selector not in drive
Shear pin broken ...
Propeller.
scud
1) To run before the wind in heavy weather. See run. 2) The broken clouds often seen during a storm. Scuddy weather is stormy.
Propellers - Right hand propeller spins clockwise, left hand spins counter clockwise. Most single screw driven vessels are right hand propspulls the stern to starboard in forward and to port in reverse, mostly affects reverse ...
A propeller that can have the pitch of its blade changed to reduce drag when not in use. Also see folding and variable pitch propellers.
Feet ...
a propeller drawn through the water that operates an meter on the boat registering the speed and distance sailed
also called a Taffrail Log
All of Boats ...
i-5 5 propeller to be removed, and the ship to be towed through undisturbed water.
A boat's propeller.
Scuppers
Drain holes on deck, in the toe rail, or in bulwarks or (with drain pipes) in the deck itself.
A type of propeller that has adjustable blades for varying speeds or directions, and may be able to reduce drag when under sail.
variation ...
Screw- Propeller.
Scupper- A drain hole in a rail or toe-rail or gunwale, allowing water to run off.
Seacock- A valve at a through-hull fitting, to allow intake of drainage of water.
Struck by Propeller/Propulsion Unit - A person is struck by the propeller, propulsion unit, or steering machinery.
Struck Submerged Object - A boat’s collision with any waterborne or fixed object that is below the surface of the water.
PITCH (Propeller) The angle at which a propeller cuts through the water. Pitch is measured as the distance a propeller would move forward with a single rotation, if there was no resistance.
SCREW - A boat's propeller.
SCUPPERS - Opening to drain excess water on deck.
SEA COCK - A through hull valve, a shut off on a plumbing or drain pipe between the vessel's interior and the sea.
Screw - A boat's propeller.
Scupper - Drain in cockpit, coaming, or toe-rail allowing water to drain out and overboard. When in toe rail, properly known as "freeing port" ...
BOW THRUSTERS - A propeller at the lower sea-covered part of the bow of the ship which turns at right angles to the fore-and-aft line and thus provides transverse thrust as a maneuvering aid.
BREADTH - See Beam ...
Struck by Boat or Propeller - Striking of a victim who is outside of the boat, but not necessarily a swimmer.
Swamping - Filling with water, regardless of method of ingress, but retaining sufficient buoyancy to remain upon the surface.
Use the correct propeller and check for damage.
Be sure engine is adequate for boat.
Use proper oil mix in motor. ...
Cavitation - Loss of effective propeller thrust caused by the blades cutting across the column of water sucked along by the propeller instead of working in it. Can also lead to heavy vibration of the vessel.
SHAFT, SHAFTING The cylindrical forging, solid or tubular, used for transmission of rotary motion from the source of power, the engine, to the propellers.
seaway schooner A sailboat with two or more masts in which the mainmast is behind the smaller one or ones scope The length of mooring or anchor line in use scow A flat-bottomed boat with square unpointed ends screw A boats propeller ...
BALLAST - Heavy substances loaded by a vessel to improve stability, trim, sea-keeping and to increase the immersion at the propeller. In the days of sail rocks and sand were used.
Tailshaft - A kind of metallic shafting (a rod of metal) to hold the propeller and connected to the power engine. When the tailshaft is moved, the propeller may also be moved for propulsion.
cavitationInefficient low-pressure pockets on propellers form bubbles that collapse against the blades resulting in premature wear.
Every two or three years, the ship has to be put in a dry dock in order to check all the submerged parts, repaint them, eventually remove the propeller and the tailshaft. DEMDES Demurrage/Despatch money
Brokerage abbreviation of chartering terms.
SCREW - A boat's propeller.
SEA ANCHOR - Any device used to reduce a boat's drift before the wind.
SECURE - To make fast.
SHACKLE - A "U" shaped connector with a pin or bolt across the open end.
taffrail log-- Walker log; a propeller drawn through the water that operates an odometer on the boat registering the distance sailed
Taffrail The rail at the stern of the boat.
Screw: The propeller of a boat, in sailing especially for yachts
Sculling: A technique of "rowing" a dinghy with a single oar
Scupper: Drains in the decks or inner parts of boats (cabins, cockpit and alike) that lead water overboard ...
Piloting: Navigation by use of visible references.
Pinch: to sail as close as possible towards the wind.
Pitch: 1) The alternate rise and fall of the bow of a vessel proceeding through waves. 2) The theoretical distance advanced by a propeller in ...
Charter companies often use a floating type of line for the painter, so it will not foul the boat propeller during your maneuvers. Problem is, those lines are very slippery even when tied or cleated.
The Stuffing Box: The propeller shaft leaves the engine's transmission and exits the sailboat's hull through a fitting called the "Stuffing Box" (red arrow in picture on the right).
Many single engined craft are unable to manoeuvre properly astern, due to propeller bias. Keel shape will also affect handling, a long keel giving a greater turning circle than a fin.
A few outboard motors have been produced with pump-jet propulsion replacing the conventional propeller.
The engine, which cranks a fixed three-blade propeller, can also be accessed via side panels.
The swell of a ship's hull around the propeller shaft.
Boss Plate:
A curved plate covering (one on each side) the boss of a propeller post and the curved portion of frames in way of the stern tube of a screw steamer.
Cavitation The loss of effective propeller thrust caused by the blades of a propeller cutting across the column of water sucked along by the propeller instead of working in it.
An example is wrapping the dinghy painter around the propeller. If this occurs, the bow of the boat can be pulled under the water to the point where the engine stalls.
"Personal watercraft" shall mean any class A in-board vessel (less than 16 feet in length) as defined by the United States Coast Guard which uses either an internal combustion engine powering a water jet-pump or a propeller as its primary source of ...
tunnel hull - A hull design to reduce propeller draft.
turnbuckle - An adjustable, threaded rigging fitting, used for lifelines and stays.
Turk's-head - A knot made of small line round a rope as a stopper or for ornament.
The sideways effect of the propeller on the stern.
Protest Signal
A signal which is hoisted during a sailing race to protest the actions of another.
TAIL SHAFT- The extreme section at the aft end of a ship's propeller shaft.
TANK-BARGE- A river barge designed for the carriage of liquid bulk cargoes.
Draft - The vertical distance from the waterline to the lowest point of the hull or attachments, such as the tip of a propeller, which determines the minimum depth of water in which a vessel will float.
E ...
Operation of the engine to generate electricity or to heat water, for example, does not make the sailing vessel a power-driven vessel, so long as the propeller (or paddle wheel) is not engaged.
A heavy longitudinal timber placed over the keel in a ship's stern through which the propeller shaft passes. (back)
shoal
shroud ...
from the stem to the forward end of the parallel mid body is called the entry and the after swim from the after end of the parallel mid body to the stern is called the run. The flat counter plate above the propeller is called the uxter plate.
monel: a strong, rust-resistant metal alloy composed of approximately 67 per cent nickel, 28 per cent copper and 5 per cent iron and manganese; commonly used for fastenings, propellers and parts of metal instruments.
Cut-up: When a keel departs from a straight line at a sharp bend, or knuckle, the sloping portion is called a cut-up. High-speed combatants usually have a long cut-up aft (extending 13 to 17 percent of LWL) to enhance propeller performance and ...
Rudder - flat board which redirects (aims) current or propeller
wash to steer a boat.
Running Lights - lights to be displayed by a boat underway
at night or in restricted visibility.
Scope - ratio of anchor rode length to vertical distance from the ...
SKEG - An extension of the keep for protection of propeller and rudder.
SLACK WATER - Minimum velocity of tidal current, sometimes abbreviated "slack".
SPEED - Rate of motion.
 See also: Boat, Hull, Point, Deck, Line
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