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1985 FREEDOM 25 Sailboat NEVER 2 LATE! Fin keel. LOA 25. Beam 8.5. Draft 4.5. Displacement 3920 lbs. Yamaha 6 H.P. Long Shaft Motor & five gallon fuel tank (2014). Catboat rigged. Comfortable, secure day sailing for four people. All lines lead back to the cockpit for simple sailing. Carbon fiber free standing mast with Ullman sail & sail cover (2012). Boom-Kicker (2018). Jabsco toilet with holding tank (2015). Interstate Marine Battery (2022) & Ganz Solar Panel (2016). BottomSider cockpit cushions. Bomar hatch and new ports (2018). Plastimo compass (2018). Weems & Plath SOS Distress Light (2016). Single Line Reefing System (2018). Tiller lock. Bi-fold swim ladder. Two fire extinguishers. Danforth anchor with chain rode/nylon line. Dock lines and three Taylor fenders. Six post Steel Storage Cradle. All lights operational. Have many receipts since purchase of the boat in 2011. Includes annual motor maintenance records. Boat is currently shrink wrapped on cradle at RCR Yachts in Buffalo, N.Y. Purchase price includes boat launching by RCR Yachts. See Freedom 25 review in GOOD OLD BOAT magazine January/February 2006. Boat is ready to enjoy this sailing season as comes with everything needed!
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)
Earlier boats had a freestanding rotating wing mast. This was changed to a non-rotating mast on later versions. Staysail only on some models.
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