In basic form, a rudder is a flat plane or sheet of material attached with hinges to the craft's stern, tail, or afterend. Often rudders are shaped to minimize hydrodynamic or aerodynamic drag.

2010年6月6日 · The result was a rudder mounted on the stern by a hinge device called the pintle-and-gudgeon. Because this new device had several deficiencies, it did not immediately replace the Mediterranean quarter-rudder.

2008年8月8日 · The medieval pintle & gudgeon rudder has been described as "median, vertical and axial". What do these terms mean actually? Here are three different sets of steering gear mounted on the stern. In what way do they differ? Can they all be subsumed under the generic term "stern-mounted rudders"?

Stern-mounted rudders are uniformly suspended at the back of the ship in a central position. The steering oar used in ancient Egypt and Rome was not a true rudder.

1999年1月1日 · If rudders mounted on either side of the stern quarter of a vessel were manifestations of an inadequate technology, why did they persist for over two millennia in the Mediterranean? Mott demonstrates through careful analysis of primarily iconographic evidence that the quarter rudder was not a [End Page 137] static technology, but that its ...

2024年6月13日 · By the medieval period, the stern-mounted rudder had become a revolutionary advancement, allowing for more efficient and effective steering than its predecessors. These innovations laid the groundwork for the advanced rudder systems found in …

While stern-mounted rudders were found in Europe on a wide range of vessels since Roman times, including light war galleys in Mediterranean, the oldest known depiction of a pintle-and-gudgeon rudder can be found on church carvings of Zedelgem and …