RATING CERTIFICATE
Sail number : US 4

YACHT DESCRIPTION

Name of Yacht: SHEILA Photo 1 - Photo 2...
Request date : 2024-07-11
Launch year :1921
Designer : Starling Burgess
Design year : 1921
Builder : Herreshoff
Class name : Gaff Sloop
Usual place of sailing : South Coast

Declared dimensions :
Lenght Over All (LH) = 8.35 m
Length on the Water Line (LWL) = 7.41 m
Max width (BH) = 2.18 m
Draft (TE) = 1.82 m
Displacement factor (FD) = 4.955

Correction factor calculation

Type of rig : sloop gaffer = 0.88
Hull: classic 1
C2 = -0.03 Kref = 0.171
C2a = 0.149
Performance group : Performance class 1 = 0.18
Vintage bonus (build): 1921 = -0.029
Vintage bonus (design): 1921 = -0.029
Cumulative vintage bonus: -0.058
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 : sans = 0
Winches ? : with = 0

Correction factor (C)= 1.062
GAFFERS
Foresail area: 17.98 m²
Jib HLU = 8.40 ; HLP = 4.10

GAFFERS
Main total area: 35.95 m²
Gaffer Mainsail
MAE = 9.95, MAH = 5.23,
MAU = 5.50, MAD = 7.55, MAF = 6.09
With Gaff topsail
FE = 2.70, FU = 6.50, FF = 6.10

Larger downwindsail area:
SL / ALE = 9.80, SL / ALU = 10.25,
SHW / AMG = 6.50, SFL / ASF = 6.45
Area: 54.22 m²

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

RATING ( Rc ): 6.9905

Time corrected Factor ( Ftc ): 0.8485

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 :

2024-07-11

JCH commission member :

Costalas Peter

Certificate number :

7-114-4106