RATING CERTIFICATE
(Valid only after approval and registration by the JCH commission)

YACHT DESCRIPTION

Name of Yacht: BIRBIRICHO Photo 1 - Photo 2...
Request date : 2023-08-07
Launch year :1978
Designer : Laurent Giles
Design year : 1975
Builder : Westerly
Class name : Conway
Usual place of sailing : Rías Baixas

Declared dimensions :
Lenght Over All (LH) = 10.90 m
Length on the Water Line (LWL) = 9.22 m
Max width (BH) = 3.40 m
Draft (TE) = 1.83 m
Displacement factor (FD) = 8.657

Correction factor calculation

Type of rig : bermudian ketch = 0.98
Hull: classic 3
C2 = -0.01 Kref = 0.188
C2a = 0.021
Performance group : Performance class 4 = -0.05
Vintage bonus (build): 1978 = 0.041
Vintage bonus (design): 1975 = 0.037
Cumulative vintage bonus: 0.078
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
No mast change = 0
No spar change = 0
Sails material : type 2 = 0
Propeller type : tripale = -0.14
Winches ? : with = 0

Correction factor (C)= 0.916
BERMUDIANS
Max foresail area: 33.79 m²
Genoa HLU = 12.45 ; HLP = 5.20

BERMUDIANS
Main total area: 28.46 m²
Mainsail P = 11.30 ; E = 3.60
Mizzen or Jigger sail P = 4.90 ; E = 1.80

No downwindsail

RATING ( Rc ): 5.903

Time corrected Factor ( Ftc ): 0.8079

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.

IMPORTANT :
Handicap is calculated according to JCH calculation rules with your own measurements.
You are not allowed to use until it has been validated by a member of the JCH committee.