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Catalina 250 Wing Keel needs new standing and running rigging that I’m installing. The forestay has failed in the slip at the mast head. There was no damage to the boat. The upper / lower shrouds held the mast in place. I’m also ordering new pleated shades to install in cabin. The Honda BF8A is being tuned up. New tires and wench has been installed on the TrailRite trailer that will sell with the boat. The trailer has a mast step system that works well. Cabin aft bulkhead has water damage and I’m looking for local fabricator. No significant damage just normal fair wear and tear.
Equipment: Trail Rite Trailer w/ Serge Brake Bearing Buddy Axel New Tires - Nov 2023 Mast Step Rigging New Wench w/ strap
Catalina 250 WK (Wing Keel) *Honda BF8A Pull Start 8 HP Outboard w/ Fuel Tank *Standard Rig *Main Sail & 135 Genoa *Two Lewmar Self-Tailing Wenches *CDI Roller Furler *Forespar Whisker Pole-ADJ7-17DL w/ Track and Car *Edson Destroyer Wheel Steering w/ Push-Pull single cable to rudder steering mechanism currently installed *Improved Pull-Pull two cable steering kit not yet installed but included. *Compass Pedestal w/ Stanchion Compact Poly Cockpit Table & Starboard Cup Drink Holders *Galley Sink & Single Propane Burner *Igloo Cooler - 48 qt. *Propane Tank Upgraded *Hand Pumped Water System *12VDC Deep Cycle Battery / Electrical System *Manual Bilge Pump *Stern Rail w/ Ladder *Head w/ Porta Potti *Covers - New 2016 / Good condition *Dodger *Bimini *Two Anchors w/ three strand nylon rode and chain lead *1 Danforth-Style Standard *1 Claw-Style *Rail Mounted Grill *Polaris Marine Radio w/ remote handset and mast mounted antenna *Interior lighting upgraded to LED *Stern/Bow Lighting upgraded to LED *Hummingbird Depth Finder *Small tool box w/ misc tools
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)
Wing Keel draft: 3.42’/1.04m
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