RATING CERTIFICATE
Sail number : GBR 8L

YACHT DESCRIPTION

Name of Yacht: Betty Alan Photo...
Request date : 06 01 2015
Launch year :1999
Designer : Jeremy Lines
Design year : 1992
Builder : Lathams
Usual place of sailing : Burnham-on-Crouch

Declared dimensions :
Lenght Over All (LOA) = 15.24 m
Length on the Water Line ( LWL ) = 11.23 m
Max width ( Bo ) = 4.27 m
Draft (Tmax) = 3.05 m
Displacement factor (FD) = 23.091


Correction factor calculation

Type of rigging : gaffer ketch = 0.85
Hull: ballasted centerboarder
C2 = 0.12 Kref = 0.215
C2a : 0.091
Regatta series : no = 0
Vintage bonus (build): 1999 = 0.07
Vintage bonus (design): 1992 = 0.06
Cumulative vintage bonus: 0.13
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 : folding or feathering = -0.03
Winches ? : with = 0

Correction factor (C)= 1.131

GAFFERS
Foresail area: 65.67 m˛
StaysailJL = 12.12 ; LPG = 3.66
JibJL = 12.56 ; LPG = 3.33
flying jibJL = 12.19 ; LPG = 3.25

GAFFERS
Main total area: 65.14 m˛
Gaffer Mainsail
A = 11.77, B = 5.36,
C = 7.66, D = 9.35, E = 6.13
With Mizzen or Jigger sail
A = 7.00, B = 3.14, C = 4.70, D = 5.69, E = 3.66
With Gaff topsail
F = 8.38, G = 5.98, H = 11.68

No downwindsail

RATING ( Rc ): 10.3431

Time corrected Factor ( Ftc ): 0.9563

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 :

13 01 2015

JCH commission member :

Comité de jauge

Certificate number :

2015011275