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The knot count would be reported and used in the sailing master's dead reckoning and navigation. This method gives a value for the knot of 20 + 1 ⁄ 4 inches per second or 1.85166 kilometres per hour. The difference from the modern definition is less than 0.02%. Derivation of knots spacing:
If the length of waterline is given in metres and desired hull speed in knots, the coefficient is 2.43 kn·m −½. The constant may be given as 1.34 to 1.51 knot·ft −½ in imperial units (depending on the source), or 4.50 to 5.07 km·h −1 ·m −½ in metric units, or 1.25 to 1.41 m·s −1 ·m −½ in SI units.
Kitsap Fast Ferries is a passenger ferry service operating between Seattle and Kitsap County in the U.S. state of Washington. It is funded and operated by Kitsap Transit and began service in July 2017, with a single boat traveling between Seattle and Bremerton .
21.5 knots (39.8 km/h; 24.7 mph) Range: 5,000 nautical miles (9,300 km; 5,800 mi) at 15 knots (28 km/h; 17 mph) Endurance: 21 days [1] Boats & landing craft carried: 1 × Fast Rescue Boat (FRB) 2 × Fast Raiding Interception and Special Forces Craft (FRISC) Complement: 54 (+ additional space for 40) Sensors and processing systems: Thales ...
14.29 knots (26.47 km/h) 07d 21h 05m 42s Royale 2: Loïc Caradec: 1985 15.76 knots (29.19 km/h) 07d 12h 49m 34s Fleury Michon VIII: Philippe Poupon: 1987 16.48 knots (30.52 km/h) 07d 06h 32m Jet Service V: Serge Madec: Marc Guillemot: 1988 17.07 knots (31.61 km/h) 6d 13h 03m 32s Jet Service V: Serge Madec: 1990 18.97 knots (35.13 km/h) 6d 17h ...
Initially, the markings were simply knots in the line. Later, sailors worked knotted cords into the log-line. Many ships used knots spaced 8 fathoms (48 feet or 14.6 meters) apart, while other ships used the 7-fathom prescription. [8] The time interval needs to be adjusted according to the distance between knots.
Boating is the leisurely activity of travelling by boat, or the recreational use of a boat whether powerboats, sailboats, or man-powered vessels (such as rowing and paddle boats), focused on the travel itself, as well as sports activities, such as fishing or waterskiing. It is a popular activity, and there are millions of boaters worldwide.
Albeau's 49.09 knot record was set in winds of 45 to 50 knots, [6] while the Yellow Pages Endeavour, which held a record of 46.52 knots from 1993 to 2004, was optimized to sail in a 19 knot wind. [7] Venue has much to do with the windsurfer's success, as all windsurfing 500m records since 1988 have been made at the same canal.