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1. (ship's boat) A small, light boat propelled by oars or a sail, used as a tender to larger vessels during the Age of Sail. 2. (full-rigged pinnace) A small "race built" galleon, square-rigged with either two or three masts. 3. In modern usage, any small boat other than a launch or lifeboat associated with a larger vessel. pintle
An advanced type of propeller used on the American Los Angeles-class submarine as well as the German Type 212 submarine is called a skewback propeller. As in the scimitar blades used on some aircraft, the blade tips of a skewback propeller are swept back against the direction of rotation. In addition, the blades are tilted rearward along the ...
The water caterpillar boat propulsion system (Popular Science Monthly, December 1918) An early uncommon means of boat propulsion was the water caterpillar. This moved a series of paddles on chains along the bottom of the boat to propel it over the water and preceded the development of tracked vehicles. [34]
1. A towed or self-propelled flat-bottomed boat, built mainly for river, canal or coastal transport of heavy goods. 2. Admiral ' s barge: A boat (or aircraft) at the disposal of an admiral (or other high ranking flag officer) for his or her use as transportation between a larger vessel and the shore, or within a harbor. In Royal Navy service ...
[clarification needed] The choice between using thrusters or traditional propellers to propel marine vessels is a compromise between versatility and efficiency. Propellers are designed to work in-line with a propulsion plant and produce one-directional thrust while thrusters are more customizable and have a more versatile application.
A Pennsylvania man fishing in Key West was killed Sunday after he fell off a boat and was struck by the engine’s propeller, police said. Timothy Adam Christianson, 35, was standing on the stern ...
Marine propulsion is the mechanism or system used to generate thrust to move a ship or boat across water. While paddles and sails are still used on some smaller boats, most modern ships are propelled by mechanical systems consisting of a motor or engine turning a propeller, or less frequently, in jet drives, an impeller.
A Florida sheriff’s deputy owes his life to a group of good Samaritans, who rushed to help when he was thrown into the blades of his boat’s spinning propeller, according to investigators.