Air draft

Air draft

Air draft is the distance from the water line to the highest point on the vessel. Air draft, plus a safety margin, determines the height required for a vessel above the water -- this is typically quoted for bridges over waterways as well as any other restrictions such as power lines.


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  • Draft (hull) — Draft marks on a ship s bow The draft (or draught) of a ship s hull is the vertical distance between the waterline and the bottom of the hull (keel), with the thickness of the hull included; in the case of not being included the draft outline… …   Wikipedia

  • Draft — For a discussion of British and American spelling differences, see Draught and draft. Contents 1 Watercraft dimensions 2 Selection processes 3 …   Wikipedia

  • draft — [draft, dräft] n. [ME draught, a drawing, pulling, stroke < base of OE dragan, DRAW] 1. a) a drawing or pulling, as of a vehicle or load b) the thing, quantity, or load pulled 2. a) a drawing in of a fish net …   English World dictionary

  • Draft Universe — (Russian: Вселенная «Черновика») is a fictional setting for a science fiction duology written by Sergei Lukyanenko and consisting of the novels Rough Draft and Final Draft. Contents 1 Overview 2 Functionals 2.1 Becoming a functional …   Wikipedia

  • draft|y — «DRAF tee, DRAHF », adjective, draft|i|er, draft|i|est. 1. in a current of air: »I had a drafty seat near the window. 2. having many currents of air: »a drafty room …   Useful english dictionary

  • Draft — Draft, a. 1. Pertaining to, or used for, drawing or pulling (as vehicles, loads, etc.). Same as {Draught}; as, a draft horse. [1913 Webster] 2. Relating to, or characterized by, a draft, or current of air. Same as {Draught}. [1913 Webster] Note:… …   The Collaborative International Dictionary of English

  • Draft box — Draft Draft, a. 1. Pertaining to, or used for, drawing or pulling (as vehicles, loads, etc.). Same as {Draught}; as, a draft horse. [1913 Webster] 2. Relating to, or characterized by, a draft, or current of air. Same as {Draught}. [1913 Webster]… …   The Collaborative International Dictionary of English

  • Draft engine — Draft Draft, a. 1. Pertaining to, or used for, drawing or pulling (as vehicles, loads, etc.). Same as {Draught}; as, a draft horse. [1913 Webster] 2. Relating to, or characterized by, a draft, or current of air. Same as {Draught}. [1913 Webster]… …   The Collaborative International Dictionary of English

  • Draft horse — Draft Draft, a. 1. Pertaining to, or used for, drawing or pulling (as vehicles, loads, etc.). Same as {Draught}; as, a draft horse. [1913 Webster] 2. Relating to, or characterized by, a draft, or current of air. Same as {Draught}. [1913 Webster]… …   The Collaborative International Dictionary of English

  • Draft net — Draft Draft, a. 1. Pertaining to, or used for, drawing or pulling (as vehicles, loads, etc.). Same as {Draught}; as, a draft horse. [1913 Webster] 2. Relating to, or characterized by, a draft, or current of air. Same as {Draught}. [1913 Webster]… …   The Collaborative International Dictionary of English

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