RATING CERTIFICATE
Sail number : 223

YACHT DESCRIPTION

Name of Yacht: Cynthia Photo 1 - Photo 2...
Request date : 2019-06-30
Launch year :1910
Designer : Thomas Jackett
Design year : 1909
Builder : Thomas Jackett
Class name : Old Gaffer
Usual place of sailing : Dartmouth

Declared dimensions :
Lenght Over All (LH) = 15.24 m
Length on the Water Line (LWL) = 10.97 m
Max width (BH) = 2.74 m
Draft (TE) = 2.13 m
Displacement factor (FD) = 11.271


Correction factor calculation

Type of rigging : gaffer cutter = 0.98
Hull: classic 2
C2 = -0.03 Kref = 0.179
C2a : 0.03
Performance group : Cruiser Racer = 0
Vintage bonus (build): 1910 = -0.04
Vintage bonus (design): 1909 = -0.041
Cumulative vintage bonus: -0.081
Hull material : traditional wood = -0.03
Mast material : wood/aluminium/steel = 0
Boom material : wood/aluminium/steel = 0
Mast or boom penality : 0
Year of mast change : 2018 = 0.02
Year of spar change : 2018 = 0.01
Sails material : type 2 = 0
Propeller type : orientable ou repliable = -0.03
Winches ? : with = 0

Correction factor (C)= 0.869

GAFFERS
Foresail area: 37.94 mē
StaysailHLU = 8.53 ; HLP = 3.96
JibHLU = 12.80 ; HLP = 3.04

GAFFERS
Main total area: 57.44 mē
Gaffer Mainsail
MAE = 11.27, MAH = 5.39,
MAU = 7.49, MAD = 10.36, MAF = 7.95

Larger downwindsail area:
SL / ALE = 14.00, SL / ALU = 16.00,
SHW / AMG = 9.66, SFL / SF = 8.37
Area: 117.53 mē

RATING ( Rc ): 9.3233

Time corrected Factor ( Ftc ): 0.934

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 :

2019-06-30

JCH commission member :

Costalas Peter

Certificate number :

6-309-2971