RATING CERTIFICATE
(Valid only after approval and registration by the JCH commission)
Sail number : XXXXX

YACHT DESCRIPTION
Name of Yacht: BLACK JOKE Photo 1 - Photo 2... Request date : 2025-07-07 Launch year :1890 Designer : F.D. WILKINSON Design year : 1890 Builder : F.D. WILKINSON Class name : XXXXX Usual place of sailing : LE POULIGUEN	Declared dimensions : Lenght Over All (L_H) = 8.05 m Length on the Water Line (L_WL) = 7.60 m Max width (B_H) = 2.20 m Draft (TE) = 1.40 m Displacement factor (FD) = 4.184 Rating RORC 1957 : XXXXX m
Correction factor calculation Type of rig : gaffer cutter = 0.88 Hull: traditional C2 = -0.086 Kref = 0.16 C2a = 0.048 Performance group : Performance class 3 = 0 Vintage bonus (build): 1890 = -0.06 Vintage bonus (design): 1890 = -0.06 Cumulative vintage bonus: -0.12 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 : tripale = -0.08 Winches ? : with = 0 Correction factor (C)= 0.665	GAFFERS Main total area: 23.59 m² Gaffer Mainsail MAE = 7.60, MAH = 4.00, MAU = 4.60, MAD = 6.40, MAF = 4.70 No downwindsail

RATING ( Rc ): 2.6145

Time corrected Factor ( Ftc ): 0.6541

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.

IMPORTANT :
Handicap is calculated according to JCH calculation rules with your own measurements.
You are not allowed to use until it has been validated by a member of the JCH committee.