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She is in good condition. The exhaust mixing elbow was replaced in 2016. The belts, impeller and fuel filters were replaced in 2021. The cutless bearing and stuffing box were replaced in 2022. There were no issues or leaks, but a gasket was worn and needed to be replaced and while everything was out I elected to have everything associated replaced. It is currently on the ground and the bottom will be painted before she goes back in the water. She has a folding prop. and a new set of fenders. The head sail is in good condition. The main will need to be replaced in the next year or so. There are custom cushions for the entire cockpit area which have never been used. I had a survey done in 2016 when I purchased her. I can make it available if anyone is interested.
https://sites.google.com/view/la-rosa-marie/home
Equipment: Electronics Standard Horizon VHF Garmin GPSMAP 541 Chartplotter Raymarine Autopilot, ST6002 Raymarine Tacktick mn30 Raymarine Tridata Depth and Speed Sony Marine Stereo with 4 speakers Navpod at Helm (2014) Sails and Rigging Classic Mainsail 135% Genoa (UV Replaced 2010) Lazy Jacks (2012) Profurl Roller Furling Gerhauer MT-2 TP 4:1 Traveler (2015) All Lines Led Aft Engine and Electrical Yanmar 2GM20F Martec 16” Folding Prop (2014) Dripless Stuffing Box Motor Mounts Replaced in 2013 Racor Fuel Filter/ Water Seperator Group 24 Starting Battery Electronic Fuel Gauge (2015) Sentry 20 Amp Smart Charger Group 24 House Battery 2- Powerfilm 14 Watter Solar Panels (2014) 2- Nicro Solar Vents 30 Amp Shore Power Inlet 110v Electrical System Galley Origo 3000 Cooktop Top Loading Refrigerator, Adler Barbour Stainless Steel Sink Pressurized Hot/ Cold Water 6 Gallon Hot Water Heater (110v or Engine) Group 24 House Battery Canvas and Other Extras Bimini Top (2012) Cockpit Cushions (2014) Lazy Bag for Mainsail Pedestal and Wheel Cover Outboard Engine Rail Bracket Safety Gear Plow Anchor with Chain and Rode Automatic Electric Bilge Pump Manual Bilge Pump Horseshoe Buoy Stern Ladder
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)
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