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Drastically Reduced!! Bought a new boat and need my slip so have offered this now at a loss. A great opportunity to own a great racer/ cruiser. Plenty of additional pics, details abd walkthrough video upon request.
1981 Beneteau First 35. Nice compliment of head sails, deep keel, volvo MD2b. A great racer/ cruiser with 3 cabin layout, lots of space below. Needs some cosmetics, running rigging is tired but still useable standing rigging is fine. Last hauled in 22 had bottom soda blasted, new barrier coats, bottom paint, new 3 blade prop,stuffing box and new gland tube hose and all new bronze through hulls Main is in good shape, teak is in good shape, but needs some refinishing. This is a very solid capable boat. Made it’s way over from France on own bottom. Just needs some minor/ cosmetic work and updating but plenty enjoyable as is.
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)
Based on IOR 3/4 ton racer.
Referred to in the US as BENETEAU R/C 35.
Shoal draft: 4.42’/1.35m
IDYLLE 11.50 based on the same hull.
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