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Hull number 400. A great old classic pocket cruiser with nice teak details. This was a documented boat that sailed to Bermuda and back. My wife and I purchased the dismasted boat in 1992 and rebuilt her and enjoyed sailing her for many years. During the rebuild we installed a brand new mast, 1/4”wire rope standing rigging with StayLok fittings, and also addressed several of the known T-27 problems including: -the fiberglass encapsulated steel centerboard rusts and swells, so we installed a custom built steel centerboard with delrin slides to make it fit neatly in the well -the knees supporting the chain plates were plywood encapsulated in fiberglass, with no through-bolts (this is what led to the dismasting before we bought it), so we ground those out and replaced with overbuilt knees and visible through-bolts in the hanging locker and head. -replaced gate valve through hulls with new ball valves
About 10-years ago I started a partial engine rebuild including cleaning out cooling channels and new side port, electronic ignition and electric fuel pump. We got busy with other projects including a new house, so the engine work stopped and she has not been back in the water since. I have all of the parts and paperwork, including original manuals and the Moyer-Marine Atomic 4 manual. The boat is structurally sound, with some deck balsa core delamination, and will need a a good cleaning and work, but anybody handy with tools can get her back in the water and enjoy a great boat for a low investment. The jack stands and winches alone are worth over $1500. It is now too much boat for us, so make me an offer and I hope somebody else can enjoy it.
Equipment: Sails: 6 sails, old but serviceable with minor repairs; 2 mains (with reef points), jib (with reef points), genoa, 170 drifter, and storm jib. Marine head with small holding tank, pump-out, and Y-valve so clean water compliant. Harken traveller Lewmar self-tailing winches Ritchie compass knot meter, depth sounder, VHF Danforth anchor 2 battery boxes box of engine spare parts 5 jack stands
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)
712 boats built. Available as as sloop or yawl.
See TARTAN 27 for more details.
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