RATING CERTIFICATE
Sail number : 675Y

YACHT DESCRIPTION
Name of Yacht: ROMPA Photo 1 - Photo 2... Request date : 2019-04-27 Launch year :1967 Designer : C.R. Holman Design year : 1963 Builder : Uphams Class name : TWISTER GRP Usual place of sailing : St Mawes	Declared dimensions : Lenght Over All (L_H) = 8.61 m Length on the Water Line (L_WL) = 6.55 m Max width (B_H) = 2.46 m Draft (TE) = 1.52 m Displacement factor (FD) = 3.908
Correction factor calculation Type of rig : bermudian sloop = 1 Hull: classic 2 C2 = -0.03 Kref = 0.179 C2a = 0.106 Performance group : Performance class 3 = 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 total penality (D.2.1.3.6) : 0 No mast change = 0 No spar change = 0 Sails material : type 2 = 0 Propeller type : tripale = -0.14 Winches ? : with = 0 Correction factor (C)= 1.017	BERMUDIANS Max foresail area: 23.3 m² Genoa HLU = 9.30 ; HLP = 4.80 BERMUDIANS Main total area: 15.15 m² Mainsail P = 3.10 ; E = 8.50 Larger downwindsail area: SL / ALE = 10.20, SL / ALU = 10.20, SHW / AMG = 5.50, SFL / ASF = 5.60 Area: 46.92 m² Use of big-boy, tall-boy, spinnaker staysails or other special sails in association with the spinnaker = to be declared

RATING ( Rc ): 5.5066

Time corrected Factor ( Ftc ): 0.7922

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 :

2019-04-28

JCH commission member :

Costalas Peter

Certificate number :

4-289-2701