RATING CERTIFICATE

YACHT DESCRIPTION

Name of Yacht: NYALA Photo 1 - Photo 2...
Request date : 2022-06-07
Launch year :1933
Designer : Maurice Griffiths
Design year : 1933
Builder : Everson and Sons. Woodbridge
Class name : exemplaire unique
Usual place of sailing : Bretagne. France

Declared dimensions :
Lenght Over All (LH) = 10.51 m
Length on the Water Line (LWL) = 9.30 m
Max width (BH) = 3.10 m
Draft (TE) = 1.24 m
Displacement factor (FD) = 5.982

Correction factor calculation

Type of rig : gaffer yawl = 0.94
Hull: traditional
C2 = -0.086 Kref = 0.16
C2a : -0.053
Performance group : Performance class 4 = -0.05
Vintage bonus (build): 1933 = -0.017
Vintage bonus (design): 1933 = -0.017
Cumulative vintage bonus: -0.034
Hull material : traditional wood = -0.03
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 : bipale_axe = -0.05
Winches ? : with = 0

Correction factor (C)= 0.684
GAFFERS
Foresail area: 18.72 m²
Staysail HLU = 6.48 ; HLP = 2.04
Jib HLU = 7.65 ; HLP = 2.96

GAFFERS
Main total area: 40.49 m²
Gaffer Mainsail
MAE = 9.06, MAH = 4.12,
MAU = 5.52, MAD = 7.84, MAF = 5.52
Mizzen or Jigger sail
MAE = 6.55, MAH = 2.52, MAU = 4.00, MAD = 4.55, MAF = 2.50
With Gaff topsail
FE = 3.80, FU = 6.35, FF = 5.00

Larger downwindsail area:
SL / ALE = 9.04, SL / ALU = 10.56,
SHW / AMG = 5.94, SFL / ASF = 6.64
Area: 49.65 m²

Use of big-boy, tall-boy, spinnaker staysails or other special sails in association with the spinnaker = NON

RATING ( Rc ): 5.5273

Time corrected Factor ( Ftc ): 0.793

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 :

2022-06-08

JCH commission member :

Olivier Beau

Certificate number :

6-082-3610