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1966 Morgan 34 Full Keel centerboard sloop. Siren underwent a complete restoration from 2012-2015 and has had continuous upgrades since then. She is in sail away condition. All deck hardware was removed and the deck was painted with two part perfection and Tuff Coat non skid. The hull was faired and primed and painted with International perfection. The mast was stripped and painted with new winches and cleats. The cabin sole veneer was removed and carpet put down. The bronze keel lifting set up was re-engineered with assistance from Brion Toss and the mast step was rebuilt. The pennants were replaced in 2023 but showed minimal wear after the upgrade in 2014.
youtu.be/iIYXwZdt4T8
Equipment: 3 burner propane stove. Tecna Electric head with holding tank and direct discharge 2016 Pressure water 2018 Diesel Air heater 2018 New standing and running rigging 2018-2023 Gaurhaur Rigid boom vang 2016. New Pulpit with integrated Navigation lights.2016 1996 Yanmar 3GM30F with approximately 1500 hours. Engine removed and overhauled in 2016. New engine mounts and engine rails/ways strengthened with aluminum angle iron. Propeller shaft and propeller machined and aligned. Flexible coupling installed and new Buck alonguin stuffing box installed. New fresh and raw water pumps and new fuel filter assemblies Cutlass bearing replaced. Rewired. House and starting batteries in good condition. ACR charging relay. All equipment for shore power included but not installed, Pressure water with 6 gallon engine heater that was removed for service but is ready for re-install.
Rudder dropped and shaft checked for straightness and machined for a new key way work performed by New England Propeller.
Full Battened Loose footed main with Tides Marine Track Good condition.(2016) 135 Genoa on Schaefer 1100 Furler Good Condition 2016 Hood 110 Headsail in serviceable condition. Raymarine electronics package including EV100 Wheel pilot wind and speed with helm mounted A78. Standalone Raymarine RL72 radar/plotter. Simrad VHF with AIS receive and wireless remote. Led lights. Icebox removed and and installed shelf for cooler. New portable Polaris refrigerator/freezer. West marine Roll up 8’ inflatable with Honda 2.3 HP outboard in good condition. Multiple anchors and chain etc. All safety equipment. We are moving up to a larger boat. Siren is currently in the water and available to view for the next 2-3 weeks after which she will be on the hard.
youtu.be/iIYXwZdt4T8
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)
The MORGAN 34 was the first real production yacht from Morgan Yachts and among the most successful. A few later versions had a separated rudder on skeg. Some later boats were sold as kits. Early boats had bronze centerboards. Later on this was changed to fiberglass.
Charles Morgan owned his own MORGAN 34 for many years.
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