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Cal 29 for sale _$10,000 We have our Cal 29, Moon Shadow, priced for quick sale because of a new boat being added to the family. She’s docked in a convenient and hurricane safe Marina on the St Johns river in Jacksonville FL Bottom sanded, two coat of ablative paint Sept 2023 Propeller, prop shaft cleaned and inspected, new zinc installed Sept 2023 Fuel tank cleaned and fuel polished Sept 2023 Engine maintenance done Sept 2023 The standing rigging was replaced in 2019 The prop shaft, cutlass bearing, propshaft were replaced 2021 The Yamnar 2GM20 has around 650 hours and is in excellent shape. Starts flawslely and does not smoke at all. It was inspected and serviced in 2022 by a marine diesel mechanic The 135% furling head sail looked new and in a sail bag when we installed it in 2022 The Main has some age but works well , The main and head sail sheets were replaced 2023 The lazy jacks were replaced 2023 The tiller was serviced 2023 The interior cushions and mattress were replaced 2021 The interior was sanded and painted with 2 part marine coating in 2021 There is an older Garmin GPS with East coast and Caribbean map cards. It shows location, depth, speed, fish finder, and numerous other useful functions. There is a functional VHF The single stainless sink has pressure water The V birth sleeps 2, the salon table drops to create a large full bed and there’s two pilot berths for kids or storage. There is a 110v ac unit mounted at the foot of the pilot berth available either at the dock or a small generator while at anchor The cockpit has 6’ settees down each side For day sailing or as an introductory boat she’s perfect. Big enough to be comfortable, small enough and maneuverable enough to not be intimidating. Reasonable offers welcome
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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