RATING CERTIFICATE
Sail number : GER 188

YACHT DESCRIPTION

Name of Yacht: Seabird Photo 1 - Photo 2...
Request date : 2019-03-17
Launch year :1976
Designer : Alpa
Design year : 1969
Builder : Alpa
Class name : ALPA 9.50
Usual place of sailing : Solent

Declared dimensions :
Lenght Over All (LH) = 9.50 m
Length on the Water Line (LWL) = 6.75 m
Max width (BH) = 2.95 m
Draft (TE) = 1.70 m
Displacement factor (FD) = 4.174


Correction factor calculation

Type of rigging : bermudian sloop = 1
Hull: modern
C2 = 0.03 Kref = 0.191
C2a : 0.122
Performance group : Cruiser Racer = 0
Vintage bonus (build): 1976 = 0.038
Vintage bonus (design): 1969 = 0.029
Cumulative vintage bonus: 0.067
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 : tripale = -0.2
Winches ? : with = 0

Correction factor (C)= 1.069

BERMUDIANS
Max foresail area: 26.34 mē
Genoa HLU = 10.90 ; HLP = 4.63

BERMUDIANS
Main total area: 16.73 mē
Mainsail P = 2.91 ; E = 10.00

Larger downwindsail area:
SL / ALE = 10.30, SL / ALU = 10.30,
SHW / AMG = 6.21, SFL / SF = 5.85
Area: 52.68 mē

RATING ( Rc ): 6.4482

Time corrected Factor ( Ftc ): 0.8367

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 :

2019-03-17

JCH commission member :

Costalas Peter

Certificate number :

3-179-2537