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This boat is a serious racer/ cruiser built in 1974 with a solid hull made of thick fiberglass. PHRF is 126 with whisker pole credit. Fast- keel faired 10 years ago, new standing rigging 15 years ago. Modified keel adding depth (draft is 62) and weight for better stability and pointing. Good racing sails included. All lines lead aft for easy single handling and shorthanded racing. Wheel replaced with a tiller for better race handling and a roomier party cockpit (removed wheel included). Boards included that allow two to sleep in the cockpit. Stern stanchion seats, large party cockpit easily fits 6 adults for sunset cocktails with removable folding table. Sleeps 6 below.
Equipment: Repowered with a Yanmar diesel now with low hours. Boat professionally rewired 5 years ago, large house battery bank with 2 Lifeline 4 DLs and an Optima starting battery isolated with an echo charger. Solar panel keeps the house bank topped up. Electric head, Tack Tick nav instruments, Chartplotter, All LED lights, TV and computer with boosted WiFi reception for hard to get marina WiFi. Canvas Winter Cover and supports.
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)
Deep draft: 6.0’/1.83m
Shown here is the MKII version introduced in 1981 with a slightly different interior most notably on the earlier versions the head was aft on the port side next to the companionway and the galley was on the starboard side.
Not to be confused with the earlier CAL 35 CRUISING KETCH. (1973)
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