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In naval architecture, a taffrail is the handrail around the open deck area toward the stern of a ship or boat. The rear deck of a ship is often called the afterdeck or poop deck. Not all ships have an afterdeck or poop deck. Sometimes taffrail refers to just the curved wooden top of the stern of a sailing man-of-war or East Indiaman ship.
In naval architecture, an afterdeck or after deck, or sometimes the aftdeck, aft deck or a-deck is the open deck area toward the stern or aft back part of a ship or boat. The afterdeck can be used for a number of different purposes, yet not all ships have an afterdeck.
Taffrail Log Rotator Mechanical speed logs called patent logs [1] or taffrail logs, operating on physical principles in a manner similar to a car's odometer by towing a vane or rotor from the stern (or taffrail) by a long line, were developed in the eighteenth century (or earlier) but became practical in the nineteenth century and replaced the ...
Full-rigged sailing ship Christian Radich Full-rigged sailing ship Royal Clipper Amerigo Vespucci, full-rigged ship of the Italian Marina Militare. A full-rigged ship or fully rigged ship is a sailing vessel with a sail plan of three or more masts, all of them square-rigged. [1]
Poop deck of a model of the Soleil-Royal, as seen from the forecastle. In naval architecture, a poop deck is a deck that forms the roof of a cabin built in the rear, or "aft", part of the superstructure of a ship.
Figure 2: Illustration of a Mercury Manometer-Based Pitometer Log. The basic technology of the pitometer log is similar to that of the pitot tube on an aircraft. Typically, the pitometer has a long tube that penetrates the ship's hull near the keel.
According to traditional design principles, a boat utilizing a leeboard either needs to have two retractable leeboards, one on each side, or a method of removing the leeboard and attaching it to either side while under way, because nearly all sailboats tack to work their way upwind (with the exception of the proa). However, some small sailboat ...
Other types feature a casing under the boat, which does not take up space but instead has the problem of increased drag. For this reason, it is not uncommon to find boats with a combination of shallow keel and centreboard (e.g. Randmeer). The keel provides the housing for the centreboard, moving it out of the hull, but adds only a small amount ...