Halvtonnare eller inte?

[Lasse_W 0]

Hej!

Hoppas nu här på ett bra svar på en fråga. Hur räknar man ut att tex en Albin ballad är en halvtonnare eller tex att en Albin accent är en kvartstonnare. Har nu funderat ett tag på detta och hoppas nu därför på ett bra svar.

Mvh Latte iten

[Eilean 3]

Här är en bra förklaring, tyvärr på engelska. Formeln är ganska komplicerad och kräver massor med mått:

The IOR concentrated on hull shape with length, beam, freeboard and girth measurements, foretriangle, mast and boom measurements, and stability with an inclination test. Additionally, the IOR identified features which were dangerous, or it couldn't fairly rate, and penalized or prohibited them. The measurements and penalties were used to compute the handicap number, called an IOR length, in feet. A typical IOR 40 footer (a one tonner) rated 30.55 feet.

In a handicapped race, the IOR length was used to compute a time allowance, in seconds per nautical mile (s/M) which was multiplied by the distance of the race, and subtracted from the boat's actual time, to compute the boat's corrected time. Longer IOR length gave a smaller time allowance.

The IOR is also used to define level classes, which instead of time correction, a boat in a given class-level has an IOR-length less than a specified value. The Ton Classes (Mini Ton, 1/4 Ton, 1/2 Ton, 3/4 Ton, 1 Ton, and Two Ton)--as well as 50-footer, ULDB 70, and Maxi classes--are examples.