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1982 Cherubini Hunter 27 with larger YANMAR 2GMF 15HP diesel that runs well. Shoal draft. Easy boat to sail. Hull good with no soft spots, usual FG blisters for this age. Rigging good, 4 sails. Interior is original and needs cleaning and refresh. Instruments and lighting dated. no cockpit cushions. Why selling: I have bought another boat.
Equipment: new 2 bnk battery charger, new battery, new solar vent, sail covers w/bimini, new motor mounts, new bronze thru-hulls. new bilge boards, everything is here but I would plan on upgrading over time. I use boat for day sailing on the bay.
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)
Shoal draft/wing keel: 3.25’, Disp. 7200 lbs.
Later boats were available with Yanmar diesel.
Tall Rig:
I: 37.50’/11.43m
J: 11.30’/3.44m
P: 32.30’/9.85m
E: 9.30’/2.83m
Total (100%): 362 ft2/33.63m2
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