RATING CERTIFICATE
Sail number : none

YACHT DESCRIPTION

Name of Yacht: SARA Photo 1 - Photo 2...
Request date : 2019-06-01
Launch year :1938
Designer : William Maxwell Blake
Design year : 1936
Builder : Calude Whisstock
Class name : Deben 4 Tonnner
Usual place of sailing : Helford River

Declared dimensions :
Lenght Over All (LH) = 6.83 m
Length on the Water Line (LWL) = 5.79 m
Max width (BH) = 2.13 m
Draft (TE) = 1.07 m
Displacement factor (FD) = 2.042


Correction factor calculation

Type of rigging : bermudian sloop = 1
Hull: classic 1
C2 = -0.03 Kref = 0.171
C2a : 0.028
Performance group : Cruiser = -0.14
Vintage bonus (build): 1938 = -0.012
Vintage bonus (design): 1936 = -0.014
Cumulative vintage bonus: -0.026
Hull material : traditional wood = -0.03
Mast material : wood/aluminium/steel = 0
Boom material : wood/aluminium/steel = 0
Mast or boom penality : 0
No mast change = 0
No spar change = 0
Sails material : type 1 = -0.15
Propeller type : tripale = -0.2
Winches ? : with = 0

Correction factor (C)= 0.452

BERMUDIANS
Max foresail area: 9.15 mē
Jib or staysail HLU = 6.40 ; HLP = 2.74

BERMUDIANS
Main total area: 19.53 mē
Mainsail P = 8.71 ; E = 3.90

No downwindsail

RATING ( Rc ): 2.0098

Time corrected Factor ( Ftc ): 0.6244

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 :

2019-06-13

JCH commission member :

Costalas Peter

Certificate number :

6-139-2832