Search results
Results from the WOW.Com Content Network
Hull speed or displacement speed is the speed at which the wavelength of a vessel's bow wave is equal to the waterline length of the vessel. As boat speed increases from rest, the wavelength of the bow wave increases, and usually its crest-to-trough dimension (height) increases as well. When hull speed is exceeded, a vessel in displacement mode ...
Forward resistance comprises the types of drag that impede a sailboat's speed through water (or an ice boat's speed over the surface) include components of parasitic drag, consisting primarily of form drag, which arises because of the shape of the hull, and skin friction, which arises from the friction of the water (for boats) or air (for ice ...
The boat is normally fitted with a small outboard motor for docking and maneuvering. [1] [4] The design has a PHRF racing average handicap of 189 with the swing keel or the fin keel and 195 with the wing keel. [7] The boat has a hull speed of 6.03 kn (11.17 km/h). [2] [4]
Most boats have a positive PHRF rating, but some very fast boats have a negative PHRF rating. If Boat A has a PHRF rating of 15 and Boat B has a rating of 30 and they compete on a 1 mile course, Boat A should finish approximately 15 seconds in front of Boat B. Results are adjusted for handicap by the race committee after all competitors have ...
A velocity prediction program (VPP) is a computer program which solves for the performance of a sailing yacht in various wind conditions by balancing hull and sail forces. VPPs are used by yacht designers, boat builders, model testers, sailors, sailmakers, also America's Cup teams, to predict the performance of a sailboat before it has been built or prior to major modifications.
Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... The boat has a hull speed of 6.87 kn (12.72 km/h). [2]
A polar diagram, or polar plot, is a graph that shows a sailboat's potential speed over a range of wind speeds and relative wind angles. [1] It normally consists of the right side of a line chart with the radius representing the yacht speed and the angle representing the wind direction blowing from top to bottom. Several lines are normally ...
The boat has a draft of 6.42 ft (1.96 m) with the standard keel fitted. The boat is fitted with a Universal Atomic 4 37 hp (28 kW) gasoline engine. The boat has a PHRF racing average handicap of 14 with a high of 123 and low of 102. It has a hull speed of 7.26 kn (13.45 km/h). [1] [5] C&C 38-2 This model was introduced in 1975, with 98 examples ...