RATING CERTIFICATE
Sail number : FRA 4963

YACHT DESCRIPTION

Name of Yacht: TCHAIKA Photo 1 - Photo 2...
Request date : 2019-05-09
Launch year :1971
Designer : Sparkman and Stephens
Design year : 1970
Builder : ALPA
Class name : ALPA 1270
Usual place of sailing : Saint Malo

Declared dimensions :
Lenght Over All (LH) = 12.62 m
Length on the Water Line (LWL) = 9.15 m
Max width (BH) = 3.46 m
Draft (TE) = 2.17 m
Displacement factor (FD) = 9.099


Correction factor calculation

Type of rigging : bermudian sloop = 1
Hull: modern
C2 = 0.03 Kref = 0.191
C2a : 0.092
Performance group : Cruiser Racer = 0
Vintage bonus (build): 1971 = 0.031
Vintage bonus (design): 1970 = 0.03
Cumulative vintage bonus: 0.061
Hull material : other = 0.05
Mast material : wood/aluminium/steel = 0
Boom material : wood/aluminium/steel = 0
Mast or boom penality : 0
No mast change = 0
No spar change = 0
Sails material : type 2 = 0
Propeller type : orientable ou repliable = -0.03
Winches ? : with = 0

Correction factor (C)= 1.203

BERMUDIANS
Max foresail area: 59.45 mē
Genoa HLU = 14.60 ; HLP = 7.80

BERMUDIANS
Main total area: 38.91 mē
Mainsail P = 13.40 ; E = 5.05

Larger downwindsail area:
SL / ALE = 15.30, SL / ALU = 15.30,
SHW / AMG = 9.40, SFL / SF = 9.30
Area: 119.6 mē

RATING ( Rc ): 11.3649

Time corrected Factor ( Ftc ): 0.9942

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 :

2019-05-09

JCH commission member :

Perrin Patrick

Certificate number :

5-099-2756