RATING CERTIFICATE
Sail number : 9700T

YACHT DESCRIPTION
Name of Yacht: JOHN SILVER Photo 1 - Photo 2... Request date : 2019-06-24 Launch year :1970 Designer : Peter Brett Design year : 1969 Builder : Southern Yachts Class name : Rival 31 Usual place of sailing : Dartmouth	Declared dimensions : Lenght Over All (L_H) = 9.40 m Length on the Water Line (L_WL) = 7.49 m Max width (B_H) = 2.98 m Draft (TE) = 1.40 m Displacement factor (FD) = 4.498
Correction factor calculation Type of rig : bermudian sloop = 1 Hull: classic 3 C2 = -0.01 Kref = 0.188 C2a = -0.002 Performance group : Performance class 3 = 0 Vintage bonus (build): 1970 = 0.03 Vintage bonus (design): 1969 = 0.029 Cumulative vintage bonus: 0.059 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 : bipale_axe = -0.05 Winches ? : with = 0 Correction factor (C)= 1.043	BERMUDIANS Max foresail area: 28.22 m² Genoa HLU = 10.60 ; HLP = 5.10 BERMUDIANS Main total area: 17.72 m² Mainsail P = 9.20 ; E = 3.35 No downwindsail

RATING ( Rc ): 6.0307

Time corrected Factor ( Ftc ): 0.8129

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.