RATING CERTIFICATE
Sail number : 675Y

YACHT DESCRIPTION

Name of Yacht: Rompa
Request date : 31 05 2013
Launch year :1967
Designer : Kim Holman
Design year : 1963
Builder : Uphams
Class name : Twister
Usual place of sailing : St Mawes

Declared dimensions :
Lenght Over All (LH) = 9.00 m
Length on the Water Line (LWL) = 6.55 m
Max width ( Bo ) = 2.46 m
Draft (Tmax) = 1.52 m
Displacement factor (FD) = 3.545


Correction factor calculation

Type of rigging : bermudian sloop = 1
Hull: classic 2
C2 = 0 Kref = 0.187
C2a : 0.045
Regatta series : no = 0
Vintage bonus (build): 1967 = 0.026
Vintage bonus (design): 1963 = 0.021
Cumulative vintage bonus: 0.047
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 : 3 fix blades = -0.16
Winches ? : with = 0

Correction factor (C)= 0.982

BERMUDIANS
Max foresail area: 23.3 mē
GenoaJL = 9.30 ; LPG = 4.80

BERMUDIANS
Main total area: 15.15 mē
Mainsail P = 3.10 ; E = 8.50

Larger downwindsail area:
SL / ALE = 10.20, SL / ALU = 10.20,
SMG / AMG = 5.50, SF / ASF = 5.60
Area: 46.92 mē

RATING ( Rc ): 5.475

Time corrected Factor ( Ftc ): 0.7954

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 :

01 06 2013

JCH commission member :

Olivier Beau

Certificate number :

201306932