RATING CERTIFICATE
Sail number : F-9

YACHT DESCRIPTION
Name of Yacht: GEISHA Photo 1 - Photo 2... Request date : 2025-04-16 Launch year :1947 Designer : Henri Copponex (Suisse) Design year : 1947 Builder : corsier port (geneve) Class name : 4mR 15m²SNS Usual place of sailing : ANNECY	Declared dimensions : Lenght Over All (L_H) = 7.00 m Length on the Water Line (L_WL) = 4.70 m Max width (B_H) = 1.56 m Draft (TE) = 1.00 m Displacement factor (FD) = 0.81
Correction factor calculation Type of rig : bermudian sloop = 1 Hull: classic 2 C2 = -0.03 Kref = 0.179 C2a = 0.068 Performance group : Performance class 1 = 0.46 Vintage bonus (build): 1947 = -0.003 Vintage bonus (design): 1947 = -0.003 Cumulative vintage bonus: -0.006 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 Year of mast change : 2025 = 0.02 Year of spar change : 2025 = 0.01 Sails material : type 2 = 0 Propeller type : sans = 0 Winches ? : with = 0 Correction factor (C)= 1.504	BERMUDIANS Max foresail area: 12.11 m² Genoa HLU = 5.80 ; HLP = 4.00 BERMUDIANS Main total area: 11.32 m² Mainsail P = 7.16 ; E = 2.75 Larger downwindsail area: SL / ALE = 6.62, SL / ALU = 6.62, SHW / AMG = 6.00, SFL / ASF = 5.50 Area: 32.55 m² Use of big-boy, tall-boy, spinnaker staysails or other special sails in association with the spinnaker = NON

RATING ( Rc ): 8.5553

Time corrected Factor ( Ftc ): 0.9017

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 :

2025-04-17

JCH commission member :

Olivier Beau

Certificate number :

4-175-4260