RATING CERTIFICATE
Sail number : 394Y

YACHT DESCRIPTION

Name of Yacht: Gwenili
Request date : 29 01 2017
Launch year :1910
Designer : ?
Design year : 1908
Builder : A La Gorce Fils Of Bordeaux Bastide
Class name : Gaff Yawl Yacht
Usual place of sailing : UK east and South coasts and South and west coast of FR

Declared dimensions :
Lenght Over All (LH) = 11.65 m
Length on the Water Line (LWL) = 9.91 m
Max width ( Bo ) = 2.90 m
Draft (Tmax) = 1.52 m
Displacement factor (FD) = 6.97


Correction factor calculation

Type of rigging : gaffer yawl = 0.94
Hull: traditional
C2 = -0.07 Kref = 0.17
C2a : -0.08
Regatta series : no = 0
Vintage bonus (build): 1910 = -0.04
Vintage bonus (design): 1908 = -0.042
Cumulative vintage bonus: -0.082
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 : no propeller = 0
Winches ? : with = 0

Correction factor (C)= 0.678

GAFFERS
Foresail area: 34.43 mē
StaysailJL = 7.70 ; LPG = 3.50
JibJL = 10.00 ; LPG = 3.90

BERMUDIANS
Main total area: 7.51 mē
Mainsail P = 4.75 ; E = 2.75

Gennaker : 39.53 mē
JL = 11.00 ; LPG = 5.75

GAFFERS
Main total area: 39.71 mē
Gaffer Mainsail
A = 10.50, B = 5.50,
C = 5.80, D = 8.20, E = 6.00
With Gaff topsail
F = 5.50, G = 3.50, H = 6.50

No downwindsail

RATING ( Rc ): 6.2111

Time corrected Factor ( Ftc ): 0.8274

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 :

30 01 2017

JCH commission member :

Costalas Peter

Certificate number :

2017011824