RATING CERTIFICATE
Sail number : 15

YACHT DESCRIPTION

Name of Yacht: TRAEZHENN 15 Photo 1 - Photo 2...
Request date : 2026-06-03
Launch year :1995
Designer : R. Dongay
Design year : 1993
Builder : Cornish Crabber Holdings
Class name : Cornish Crabber 24 MK3
Usual place of sailing : Dinard

Declared dimensions :
Lenght Over All (LH) = 7.46 m
Length on the Water Line (LWL) = 6.32 m
Max width (BH) = 2.59 m
Draft (TE) = 1.07 m
Displacement factor (FD) = 2.725

Correction factor calculation

Type of rig : gaffer cutter = 0.88
Hull: classic 1
C2 = -0.03 Kref = 0.171
C2a = -0.003
Performance group : Performance class 4 = -0.05
Vintage bonus (build): 1995 = 0.065
Vintage bonus (design): 1993 = 0.062
Cumulative vintage bonus: 0.127
Hull material : other = 0.05
Mast material : wood/aluminium/steel = 0
Boom material : wood/aluminium/steel = 0
Mast or boom total penality (D.2.1.3.6) : 0
Year of mast change : 2013 = 0.012
No spar change = 0
Sails material : type 2 = 0
Propeller type : tripale = -0.08
Winches ? : with = 0

Correction factor (C)= 0.89
GAFFERS
Foresail area: 15.56 m²
Staysail HLU = 5.53 ; HLP = 2.41
Jib HLU = 7.20 ; HLP = 2.29

GAFFERS
Main total area: 17.42 m²
Gaffer Mainsail
MAE = 7.28, MAH = 3.00,
MAU = 4.32, MAD = 5.78, MAF = 4.26
With Gaff topsail
FE = 1.61, FU = 4.16, FF = 4.47

No downwindsail

RATING ( Rc ): 4.4119

Time corrected Factor ( Ftc ): 0.7456

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 :

2026-06-04

JCH commission member :

Olivier Beau

Certificate number :

6-046-4523