Search results
Results from the WOW.Com Content Network
Also ship's magazine. The ammunition storage area aboard a warship. magnetic bearing An absolute bearing using magnetic north. magnetic north The direction towards the North Magnetic Pole. Varies slowly over time. maiden voyage The first voyage of a ship in its intended role, i.e. excluding trial trips. Maierform bow A V-shaped bow introduced in the late 1920s which allowed a ship to maintain ...
A frame in which the boom rests when the sail is not hoisted. boom gallows A raised crossmember that supports a boom when the sail is lowered (and which obviates the need for a topping lift). boomie . Also booms'l rig. A ketch-rigged barge with gaff (instead of spritsail) and boom on main and mizzen. Booms'l rig could also refer to cutter ...
Glossary of nautical terms may refer to: Glossary of nautical terms (A–L) Glossary of nautical terms (M–Z) This page was last edited on 21 December 2024 ...
A jibboom (also spelled jib-boom) is a spar used to extend the length of a bowsprit on sailing ships. [1] It can itself be extended further by a flying jib-boom. [1] The heel (i.e. rear and lower) end of the flying jib-boom is attached to the jib-boom, and the heel of the jib-boom to the bowsprit.
In sailing, a boom is a spar (pole), along the foot of a fore and aft rigged sail, that greatly improves control of the angle and shape of the sail. The primary action of the boom is to keep the foot flatter when the sail angle is away from the centerline of the boat. The boom also serves as an attachment point for more sophisticated control lines.
Kicking straps / boom vangs, which control a boom-footed sail's leech tension by exerting downward force mid-boom. Normally this is a system of highly geared blocks, of flexible stainless steel wire and low stretch cordage but recently some sail boats have a short spar instead, often of carbon fibre.
An uncontrolled boom slamming to the limit of its range may also put excessive stress on the rigging, can break the boom or standing rigging, or cause dismasting. A jibe can also result in a sudden change in the direction of heel, and can cause unexpected course changes due to the mainsail force changing from one side of the boat to the other.
A vang works with the mainsheet to apply the downward force on the boom at all horizontal angles, allowing the mainsheet to be used to control the horizontal angle of the boom effectively. While under sail, the opposite force to the vang is supplied by the sail itself. When the sail is furled, a topping lift supplies the upward force on the ...