RATING CERTIFICATE
Sail number : K239

YACHT DESCRIPTION

Name of Yacht: John Dory
Request date : 18 02 2012
Launch year :1938
Designer : Robert Clark
Builder : Sussex Yacht Works
Usual place of sailing : UK South Coast

Declared dimensions :
Lenght Over All (LH) = 13.72 m
Length on the Water Line (LWL) = 9.45 m
Max width ( Bo ) = 3.04 m
Draft (Tmax) = 1.98 m
Displacement factor (FD) = 9.816


Correction factor calculation

Type of rigging : bermudian sloop = 1
Hull: classic 1
C2 = -0.02 Kref = 0.185
C2a : -0.023
Regatta series : no = 0
Vintage bonus (build): 1938 = -0.012
Vintage bonus (estimated): 1937 = -0.013
Cumulative vintage bonus: -0.025
Hull material : traditional wood = -0.03
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 : yes = 0.02
Material other spar different from original : yes = 0.02
Sails material : type 2 = 0
Propeller type : folding or feathering = -0.04
Winches ? : with = 0

Correction factor (C)= 0.902

BERMUDIANS
Max foresail area: 54.42 mē
GenoaJL = 14.30 ; LPG = 7.29

BERMUDIANS
Main total area: 38.41 mē
Mainsail P = 13.66 ; E = 4.89

Larger downwindsail area:
SL / ALE = 14.96, SL / ALU = 14.96,
SMG / AMG = 8.36, SF / ASF = 8.16
Area: 103.72 mē

RATING ( Rc ): 8.1925

Time corrected Factor ( Ftc ): 0.905

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 :

Consil JCH

Date of certificate :

19 02 2012

JCH commission member :

Beau Olivier

Certificate number :

201202674