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  2. Jacob's ladder (nautical) - Wikipedia

    en.wikipedia.org/wiki/Jacob's_ladder_(nautical)

    It consists of vertical ropes or chains supporting horizontal, historically round and wooden, rungs. Today, flat runged flexible ladders are also called Jacob's ladders. [3] They are used to allow access over the side of ships, and as a result, pilot ladders are often incorrectly referred to as Jacob's ladders. A pilot ladder has specific ...

  3. Boat building - Wikipedia

    en.wikipedia.org/wiki/Boat_building

    Sheet plywood boat building uses sheets of plywood panels usually fixed to longitudinal long wood such the chines, inwhales (sheer clamps) or intermediate stringers which are all bent around a series of frames. By attaching the ply sheets to the longwood rather than directly to the frames this avoids hard spots or an unfair hull.

  4. Aids to Navigation Boat - Wikipedia

    en.wikipedia.org/wiki/Aids_to_Navigation_Boat

    55-ft Aids to Navigation Boat (ANB) Equipped with a crane that is used for hoisting and securing the various buoys and aids to navigation that the Coast Guard supplies for waterways. The boat is 55 ft long to the transom, and 58 ft 9 in to the end of the swim platform. It is 25 ft tall unfixed and has a navigational draft of 8 ft.

  5. Glossary of firefighting equipment - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_firefighting...

    Extension ladder A 20–60-foot ladder with one or more movable sections that extend beyond a base section, generally using a halyard rope and pulley mechanism for lifting and locking cams to latch the moving sections at a selected height. Extinguisher

  6. Stays (nautical) - Wikipedia

    en.wikipedia.org/wiki/Stays_(nautical)

    To miss stays is to fail in the attempt to go about; [4] if the vessel fails to go about, she is said to refuse stays. [3] In stays, or hove in stays, is the situation of a vessel when she is staying, or in the act of going about. [4] A vessel in bad trim, or lubberly-handled, is sure to be slack or loose in the stays: she may refuse stays ...

  7. Ladder - Wikipedia

    en.wikipedia.org/wiki/Ladder

    An extension ladder. A ladder is a vertical or inclined set of rungs or steps commonly used for climbing or descending. There are two types: rigid ladders that are self-supporting or that may be leaned against a vertical surface such as a wall, and rollable ladders, such as those made of rope or aluminium, that may be hung from the top.

  8. Davit - Wikipedia

    en.wikipedia.org/wiki/Davit

    Boat suspended from Welin Quadrant davits; the boat is mechanically 'swung out' HMS Victory in the 19th century, showing her boats suspended from wooden davits Gravity multi-pivot on cruiseferry Scandinavia Gravity Roller Davit Gravity multi-pivot davit holding rescue vessel on North Sea ferry Freefall lifeboat on the Spring Aeolian Frapping line Labeled Tricing Gripe Steps to launch davit ...

  9. Pilot ladder - Wikipedia

    en.wikipedia.org/wiki/Pilot_ladder

    The spreader's function is to prevent the ladder from twisting in the prevailing weather conditions when in use. The lowest four steps of the ladder are normally made from a synthetic or composite resin, which is more resistant than hardwood, to the interaction between the host vessel and the pilot boat coming alongside.

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