RATING CERTIFICATE
Sail number : K234

YACHT DESCRIPTION

Name of Yacht: Grey Seal
Request date : 24 05 2017
Launch year :1938
Designer : Rodney Paul
Design year : 1934
Builder : Berthons
Class name : Gauntlet 12 Tonner
Usual place of sailing : East Coast Suffolk

Declared dimensions :
Lenght Over All (LH) = 11.20 m
Length on the Water Line (LWL) = 9.30 m
Max width ( Bo ) = 2.90 m
Draft (Tmax) = 1.70 m
Displacement factor (FD) = 6.739
Rating RORC 1957 : 6.8 m


Correction factor calculation

Type of rigging : bermudian cutter = 1
Hull: traditional
C2 = -0.07 Kref = 0.17
C2a : -0.003
Regatta series : no = 0
Vintage bonus (build): 1938 = -0.012
Vintage bonus (design): 1934 = -0.016
Cumulative vintage bonus: -0.028
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 : no = 0
Material other spar different from original : no = 0
Sails material : type 2 = 0
Propeller type : 3 fix blades = -0.16
Winches ? : with = 0

Correction factor (C)= 0.709

BERMUDIANS
Max foresail area: 30.57 mē
GenoaJL = 9.60 ; LPG = 6.10

BERMUDIANS
Main total area: 37.53 mē
Mainsail P = 11.89 ; E = 5.49

No downwindsail

RATING ( Rc ): 5.2265

Time corrected Factor ( Ftc ): 0.7841

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 :

25 05 2017

JCH commission member :

Costalas Peter

Certificate number :

2017051935