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Morgan 33T 1974, tall mast, LOA 32.8ft, beam 10.5ft, draft 5.5ft, IOR 3/4 ton racer/cruiser, inboard diesel Faryman 12hp with hydraulic transmission, new Simrad Cruise 9 GPS plotter/sonar-fish finder, new solar panels 2100w with charging system, 2 new deep cycle marine batteries, new VHF, main sail in good condition, head sail needs to be replaced, Harken furler, spinnaker, boom rigid vang, manual head, holding tank, fresh water tank, pressurized water, 2 bilge pumps, bottom job 2019, cockpit cushions and bimini, interior cushions fair. She is an old boat that may take some tlc, but most of everything works, and she performs amazingly under sails, easily reaches speed over 6 knts. Selling because moved to a larger sailboat, price reduced to sell. All reasonable offers considered.
Equipment: Inboard diesel Faryman 12hp, new Simrad Cruise 9 GPS plotter/sonar-fish finder, new solar panels 2100w with charging system, 2 new deep cycle marine batteries, new VHF, main sail in good condition, head sail needs to be replaced, Harken furler, spinnaker, boom rigid vang, manual head, holding tank, fresh water tank, pressurized water, 2 bilge pumps, bottom job 2019, cockpit cushions and bimini, interior cushions fair
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)
IOR (MkIII) 3/4 ton and raced at the first 3/4 ton cup (1974) at Miami, FL, USA.
An early adoption of the Bergstrom & Ridder rig was standard equipment.
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