[guillermogefaell]

Algunos parámetros con sus explicaciones. Están en inglés porque los copié de una de las páginas que publico sobre los Banjers. Concretamente de esta:
http://banjer37msclub.tripod.com/members_workshop.htm



BANJER 37 MAIN PARAMETERS

See: Understanding Yacht Design, from Ted Brewer, or Dan Pfeiffer'scomprehensive page

Main Data input

LOA : 37'
Lwl: 31.17'
Beam: 11.42'
Bwl : 9.84'
Draft: 4.43'
Displacement: 27778 pounds
Sail Area : 301, 450 & 807 sq feet
(28, 42 & 75 sqm)

Displacement / Lwl = 409.5 (Banjers are really heavy-weights!)
Displacement to LWL: A medium value would be 200. 300 would be high (Heavy Cruising Boat) and 100 would be low (Ultra Light Displacement-ULDB). Boats with low numbers are probably uncomfortable and difficult to sail.

Hull speed = 7.48 knots as by static waterline lenght calculation. Tested aboard is around 8.5 knots.
Hull Speed: This is the "conventional" maximum speed of a displacement hull. Racers and lighter boats are able to easily achieve greater speed by lifting over the bow wave and riding on top of the water,that is, planing.

Sail area / Displacement = 5. 25 ; 7.88 & 14.08
Sail Area to Displacement: The sail area is the total of the main sail and the area of the front triangle. A racing boat typically has large sail area and low displacement. A number less than 13 most probably indicates that the boat is a motorsailer. High performance boats would be around 18 or higher.

Nota: El Marie es una versión de 301 sqf (28m2) pero con bauprés adicional que permite montar un génova con enrrollador de unos 20 m2, lo que lleva el área vélica hacia casi 50 m2 y el índice SA/D hacia el rango de 8. Buen comportamiento con vientos duros, se aguanta todo el trapo arriba con Fuerza 5 sin problemas.

Lwl / Beam = 2.73
LWL to Beam: A medium value would be 2.7 ; 3.0 would be high and 2.3 would be low

Motion Comfort ratio = 61.57
Motion Comfort: Range will be from 5 to 60+ with a Whitby 42 at the mid 30's. The higher the number the more comfort in a sea. This figure of merit was developed by the Yacht designer Ted Brewer and is meant to compare the motion comfort of boats of similar size and types.

Capsize ratio = 1.30
Capsize Ratio: A value less than 2 is considered to be relatively good; the boat should be relatively safe in bad conditions. The higher the number above 2 the more vulnerable the boat. This is just a rough figure of merit and controversial as to its use.