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The draft or draught of a ship is a determined depth of the vessel below the waterline, measured vertically to its hull's lowest—its propellers, or keel, or other reference point. [1] Draft varies according to the loaded condition of the ship. A deeper draft means the ship will have greater vertical depth below the waterline.
Draft, Air – Air Draft/Draught is the distance from the water line to the highest point on a ship (including antennas) while it is loaded. Air draft is the minimum height a ship needs to pass under, while standard draft is the minimum depth a ship needs float over.
The vessel's clearance is the distance in excess of the air draft which allows a vessel to pass safely under a bridge or obstacle such as power lines, etc.A bridge's "clearance below" is most often noted on charts as measured from the surface of the water to the underside of the bridge at the chart datum Mean High Water (MHW), [3] [4] a less restrictive clearance than Mean Higher High Water ...
Canned draught is beer served from a pressurised container featuring a widget. [8] Smooth flow (also known as cream flow , nitrokeg , or smooth ) is the name brewers give to draught beers pressurised with a partial nitrogen gas blend.
moulded draught Draught measured relative to the base line. [13] Compare with keel draught. mould loft Where the lines of the ship are drawn out full-size and the templates for the timber s are made. mousing Several turns of light line around the mouth of a hook, to prevent unhooking accidents. [2] mulie
In nautical parlance, the draft or draught of a sail refers to the amount and shape of curvature in a horizontal cross-section. [1]
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The draft observed at each set of marks is averaged to find a mean draft. The ship's hydrostatic tables show the corresponding volume displaced. [ 4 ] To calculate the weight of the displaced water, it is necessary to know its density.