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- Sailboat Guide
X-119 is a 39 ′ 4 ″ / 12 m monohull sailboat designed by Niels Jeppesen and built by X-Yachts between 1988 and 1992.
Rig and Sails
Auxilary power, accomodations, calculations.
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
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL
Sail Area / Displacement Ratio
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
- SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
- D : Displacement in pounds.
Ballast / Displacement Ratio
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
Displacement / Length Ratio
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
- D: Displacement of the boat in pounds.
- LWL: Waterline length in feet
Comfort Ratio
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 Beam 1.33 )
- D: Displacement of the boat in pounds
- LOA: Length overall in feet
- Beam: Width of boat at the widest point in feet
Capsize Screening Formula
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)
Basic specs. from original builders brochure. (Rig dimensions from sample ORC certificate.)
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Designed by Niels Jeppesen, the X-119 is intended to be a fast boat specifically aimed at a one-design class. With narrow beam, bulb keel, light displacement, big rig and low wetted surface, the first X-Yachts X-119 has earned a reputation as a light-air flyer and a stiff upwind machine.
The X-119 is a large sailboat designed by the maritime architect Niels Jeppesen in the late eighties. Less than 100 boats have been produced. The X-119 is built by the Danish yard X-Yachts A/S.
The X-119 is a beautifull boat, and very well built by X-yachts, with an Inox structure as was the case for all X until recently.
Below is what is purported to be an X-119 keel. As to your last point, I agree ORC (or at least ORC Club) rates them much faster than PHRF. But I would suggest that the X-119 may be a design that blows up the ORC formulae.
I think there is an X-119 on the Chesapeake that rates 60. Ironically, the IMX-38s on the bay rate 60 as well.
X-119 is a 39 ′ 4 ″ / 12 m monohull sailboat designed by Niels Jeppesen and built by X-Yachts between 1988 and 1992.