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Alegria is sleek, fast, lovingly maintained and upgraded. Fun to sail and easy to singlehand. New standing rigging, mast wiring, masthead tri (2015). New Doyle main, jib, gennaker with Selden bowsprit (2015). New lifelines (2016). New epoxy bottom (2018). Alpha autopilot, Vesper AIS & GPS with onboard Wi-Fi. Universal M25 diesel with new ZF 12M transmission (2021), new heat exchanger, injectors, raw water pump. 315 AH deep cycle house battery bank. Norcold fridge. Indestructible Achilles dinghy with 5hp Nissan outboard. USCG documented.
Equipment: Dodger Garhauer blocks and rope clutches Rigid vang Selden bowsprit and telescopic whisker pole Two anchors – 33lb Bruce and Danforth Storm jib, drogue Seaward range Universal M25 with brand new ZF 12M transmission Achilles dinghy with 5HP Nissan outboard Alpha autopilot Knot, depth with alarm Vesper Marine AIS & GPS with onboard Wi-Fi iPad with SeaIQ charts 315 AH deep cycle house battery bank with separate starting bank EPIRB, SOS Danbuoy, Lifesling EchoMax radar reflector
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 keel/cb version was also available (as shown in drawing) as well as a more performance oriented version (with shorter coach roof and longer cockpit) sometimes called NEWSON-MAREK 36R.
Keel/CB version:
Draft (max.) 6.92’
Draft (min.) 4.67’
E measurement reduced slightly on later boats. (IOR tweaking?).
Alternate shorter rig:
I: 45.00’
J: 14.33’
P: 38.33’
E: 13.00’
Also called NELSON MAREK 36.
Not to be confused with a later (1995) NELSON MAREK 36 built in Canada.
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