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POCO LOCO is a 1982 S2 7.9 Grand Slam (26 ft) in very good shape. This one design fractional rigged racer/cruiser is FAST and features a dagger board keel which has a 1 ft draft when up and a 5 ft draft when lowered. The fiberglass is solid with no soft spots in the dagger board trunk, deck/chain plates, transom or rudder. There are berths for four adults in a huge v-berth forward and two 6’6” quarter berths. A fresh coat of VC-17 was applied to the bottom last year. Poco Loco has only sailed in fresh water and has done very well in PHRF racing. Custom trailer was refurbished in 2019 with new axles, electric brakes, controller, paint and safety chains.
Equipment: Poco Loco comes with a full collection of head sails in very good condition, a loose footed main in good shape and a couple of spinnakers. Most of the running rigging has been replaced over the past few years. A new Harken windward sheeting mainsail traveler was added in 2020. New speakers for the AM/FM/CD player were installed in 2021. Other equipment includes VHF radio, hardware to raise and lower mast, spinnaker pole, compass, life jackets, anchor, rode and line, porti potti with pump out, 2019 Tohatsu 6 HP long shaft ouboard with alternator.
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)
A few (17) were delivered with a fixed keel and masthead rig. (See S2 7.9FK for specs.)
Inboard power available as an option… BMW 7.5 hp diesel.
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