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FOR SALE
1984 Irwin Citation For sale
1984 live aboard Irwin citation 34 ft 4 ft draft with center board
Custom Bimini 850 watt solar new Wind generator new 4000 watt inverter new 5 new batteries Garmin chart plotter new 1 year old inflatable dingy with mercury 4 stroke Bottom job October 2020 Topcoat and nonskid October 2020 Revarnished cabin October 2020 Refrigerator freezer new Window unit air conditioning new Tv dvd new Microwave new Propane stove and oven Dingy davits Sails in good condition Cushions good condition Safety gear and lots of extras with boat 31 gal diesel 60 gal water Barbecue pit Yanmar 2 gym f engine with 1429 hours V berth and rear quarter berth Lots of storage and added storage Ready to sail Lots of extras
Located boot key harbor marathon Florida 24000$ OBO Serious inquiries only
Call 3183089221
Equipment: All safety equipment Life jackets Dingy and motor New garmin chart plotter
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)
See IRWIN 39 CITATION which appears very similar.
Fixed keel shoal draft: 4.39’
Keel/cb: BU: 4.25’/BD: 7.0’
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