RATING CERTIFICATE
Sail number : 387

YACHT DESCRIPTION
Name of Yacht: ISMANA Photo 1 - Photo 2... Request date : 2020-10-22 Launch year :1951 Designer : Jack Laurent Giles Design year : 1949 Builder : Sabberton Brothers- Wroxham Usual place of sailing : CHARENTE MARITIME	Declared dimensions : Lenght Over All (L_H) = 14.26 m Length on the Water Line (L_WL) = 10.90 m Max width (B_H) = 3.25 m Draft (TE) = 2.10 m Displacement factor (FD) = 13.962 Rating RORC 1957 : 183980 m
Correction factor calculation Type of rig : bermudian yawl = 0.98 Hull: classic 2 C2 = -0.03 Kref = 0.179 C2a = 0.027 Performance group : Performance class 3 = 0 Vintage bonus (build): 1951 = 0.001 Vintage bonus (design): 1949 = -0.001 Cumulative vintage bonus: 0 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 = -0.14 Winches ? : with = 0 Correction factor (C)= 0.815	BERMUDIANS Max foresail area: 47.82 m² Genoa HLU = 14.80 ; HLP = 6.19 BERMUDIANS Main total area: 53.62 m² Mainsail P = 13.60 ; E = 5.60 Mizzen or Jigger sail P = 6.45 ; E = 2.65 Mizzen staysail : ALE = 6.30; ALU = 7.80; AMG = 2.57; SF = 6.50 Area: 19.72 m² Larger downwindsail area: SL / ALE = 15.00, SL / ALU = 15.00, SHW / AMG = 8.70, SFL / ASF = 9.60 Area: 111 m² Use of big-boy, tall-boy, spinnaker staysails or other special sails in association with the spinnaker = to be declared

RATING ( Rc ): 7.8531

Time corrected Factor ( Ftc ): 0.8785

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 :

2020-10-22

JCH commission member :

Olivier Beau

Certificate number :

0-220-3230