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Flying Scot, 2012 sailboat for sale #6006 – White deck and hull with dark blue trim stripes,
Dk. Blue waterline, mahogany centerboard cap, standard race package MAD sails – main, jib and spinnaker Mast hinge Mast head fly Spinnaker pole and rig Two rings on mast for pole 360 swivel cleat for centerboard Spinnaker halyard led aft with reel On deck spinnaker sheet system with Harken self-ratcheting cheek blocks and cleat on cockpit coaming Jib ratchets on side deck with cleats for leeward cleating Boom vang – 6:1 cleated aft on console Ronstan X-10 h-o stick with clip (substituted below) Cunningham – 6:1 cleated on deck Pole lift line cleated on deck Outhaul- 3:1 internal
Additions and substitutions Trailex alum, Trailer in lieu of galvanized Bottom paint – red Swim ladder and grab rail Rudder lift system Motor mount Adj. tiller extension in lieu of fixed length Nosewheel/jack for trailer Spare tire with mount & lock Mainsail flotation panel Tent style cockpit cover – special dark blue North Trail/mooring cover-gray poly with skirt to waterline Name – “Tango” – shaded script, both sides aft Hull ID No. – GDB04624B212
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
SA/D = SA ÷ (D ÷ 64)2/3
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Ballast / Displacement * 100
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
CSV = Beam ÷ ³√(D / 64)
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