RATING CERTIFICATE
Sail number : 2941

YACHT DESCRIPTION

Name of Yacht: Jemalda
Request date : 12 05 2018
Launch year :1971
Designer : Sparkman & Stephens
Design year : 1969
Builder : Aquafibre
Class name : Aqua 30
Usual place of sailing : Falmouth

Declared dimensions :
Lenght Over All (LH) = 9.10 m
Length on the Water Line (LWL) = 6.40 m
Max width ( Bo ) = 2.74 m
Draft (Tmax) = 1.65 m
Displacement factor (FD) = 3.602


Correction factor calculation

Type of rigging : bermudian sloop = 1
Hull: modern
C2 = 0.1 Kref = 0.21
C2a : 0.032
Regatta series : no = 0
Vintage bonus (build): 1971 = 0.031
Vintage bonus (design): 1969 = 0.029
Cumulative vintage bonus: 0.06
Hull material : other = 0.05
Mast material : wood/aluminium/steel = 0
Boom material : wood/aluminium/steel = 0
Mast or boom penality : 0
Material of mast or boom different from original : no = 0
Material other spar different from original : no = 0
Sails material : type 2 = 0
Propeller type : folding or feathering = -0.04
Winches ? : with = 0

Correction factor (C)= 1.202

BERMUDIANS
Max foresail area: 31.29 mē
GenoaJL = 10.80 ; LPG = 5.55

BERMUDIANS
Main total area: 14.71 mē
Mainsail P = 9.37 ; E = 2.73

Larger downwindsail area:
SL / ALE = 10.70, SL / ALU = 10.70,
SMG / AMG = 6.00, SF / ASF = 5.90
Area: 53.32 mē

RATING ( Rc ): 7.1192

Time corrected Factor ( Ftc ): 0.8643

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 :

12 05 2018

JCH commission member :

Costalas Peter

Certificate number :

2018052202