RATING CERTIFICATE
Sail number : POR 8249

YACHT DESCRIPTION

Name of Yacht: Air Mail
Request date : 24 03 2011
Launch year :1973
Designer : Dick Carter
Design year : 1972
Builder : Storebro, Suede

Declared dimensions :
Lenght Over All (LOA) = 12.75 m
Length on the Water Line ( LWL ) = 11.65 m
Max width ( Bo ) = 3.83 m
Draft (Tmax) = 1.95 m
Displacement factor (FD) = 11.454


Correction factor calculation

Type of rigging : bermudian sloop = 1
Hull: modern
C2 = 0.15 Kref = 0.21
C2a : -0.142
Regatta series : no = 0
Vintage bonus (build): 1973 = 0.034
Vintage bonus (design): 1972 = 0.033
Cumulative vintage bonus: 0.067
Hull material : other = 0.05
Mast material : wood/aluminium/steel = 0
Boom material : wood/aluminium/steel = 0
Mast or boom penality : 0
Material of mast or boom different from original : no = 0
Material other spar different from original : no = 0
Sails material : type 2 = 0
Propeller type : folding or feathering = -0.03
Winches ? : with = 0

Correction factor (C)= 1.095

BERMUDIANS
Max foresail area: 65.43 m˛
GenoaJL = 15.63 ; LPG = 8.02

BERMUDIANS
Main total area: 34.88 m˛
Mainsail P = 14.98 ; E = 4.05

Larger downwindsail area:
SL / ALE = 16.30, SL / ALU = 16.30,
SMG / AMG = 9.90, SF / ASF = 9.72
Area: 133.99 m˛

RATING ( Rc ): 10.7541

Time corrected Factor ( Ftc ): 0.9662

The delivery of a JCH certificate does not have to be understood as the elligibility of the boat to classic regattas.
Elligibility to a specific regatta is governed by the elligibility rules the organizers has decided and have displayed in the Notice of Race.

Certification commission :

Conseil JCH

Date of certificate :

11 02 2015

JCH commission member :

le comité de jauge

Certificate number :

201502474