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A flatboat passing a long cigar-shaped keelboat on the Ohio River. A flatboat (or broadhorn) was a rectangular flat-bottomed boat with [1] square ends used to transport freight and passengers on inland waterways in the United States. The flatboat could be any size, but essentially it was a large, sturdy tub with a hull.
Man piloting a jon boat on the Speed River within Idylwild Park. A flat-bottomed boat is a boat with a shallow draft, two-chined hull, which allows it to be used in shallow bodies of water, such as rivers, because it is less likely to ground.
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Nautical charts must be labeled with navigational and depth information. There are a few commercial software packages that do automatic label placement for any kind of map or chart. Modern systems render electronic charts consistent with the IHO S-52 specification, issued by the International Hydrographic Organization (IHO).
Clickable maps and Image map resources at Wikimedia Commons The pages listed in this category are meant to be image-based templates. This page is part of Wikipedia's administration and not part of the encyclopedia.
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In New Zealand the term keeler is frequently used as a generic alternative—meaning any sailboat with a keel, regardless of size. [ citation needed ] World Sailing (formerly the ISAF, formerly the IYRU) usage differentiates keelboats (including the 12-meter class ) from generally larger yachts , despite overlap in the sizes of boats in the two ...
A world map is a map of most or all of the surface of Earth. World maps, because of their scale, must deal with the problem of projection. Maps rendered in two dimensions by necessity distort the display of the three-dimensional surface of the Earth. While this is true of any map, these distortions reach extremes in a world map.