RATING CERTIFICATE

YACHT DESCRIPTION

Name of Yacht: SEVERINE Photo 1 - Photo 2...
Request date : 2026-06-05
Launch year :1990
Designer : John Alden
Design year : 1927
Builder : UNIVERSAL YACHTING - GUIP
Class name : Guy Louis Patrice Ribadeau-Dum
Usual place of sailing : Brest

Declared dimensions :
Lenght Over All (LH) = 16.38 m
Length on the Water Line (LWL) = 11.90 m
Max width (BH) = 3.98 m
Draft (TE) = 2.30 m
Displacement factor (FD) = 25.966

Correction factor calculation

Type of rig : topsail schooner = 0.73
Hull: classic 1
C2 = -0.03 Kref = 0.171
C2a = 0.045
Performance group : Performance class 3 = 0
Vintage bonus (build): 1990 = 0.058
Vintage bonus (design): 1927 = -0.023
Cumulative vintage bonus: 0.035
Hull material : aluminium = 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 : orientable ou repliable = -0.01
Winches ? : with = 0

Correction factor (C)= 0.797
GAFFERS
Foresail area: 75.17 m²
Staysail HLU = 9.48 ; HLP = 3.90
Jib HLU = 13.90 ; HLP = 7.70

Fisherman:
FIE = 6.02; FIH = 4.91; FIU = 5.48; FID = 7.16; FIF = 3.96
Area: 25.36 m²
GAFFERS
Main total area: 89.76 m²
Gaffer Mainsail
MAE = 11.70, MAH = 5.00,
MAU = 8.60, MAD = 10.30, MAF = 7.70
Mizzen or Jigger sail
MAE = 9.70, MAH = 4.00, MAU = 7.60, MAD = 8.20, MAF = 4.10
With Gaff topsail
FE = 3.96, FU = 6.55, FF = 4.27

Larger downwindsail area:
SL / ALE = 8.00, SL / ALU = 8.00,
SHW / AMG = 12.40, SFL / ASF = 12.40
Area: 82.67 m²

Use of big-boy, tall-boy, spinnaker staysails or other special sails in association with the spinnaker = NON

RATING ( Rc ): 8.4574

Time corrected Factor ( Ftc ): 0.8985

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 :

2026-06-05

JCH commission member :

Olivier Beau

Certificate number :

6-056-4531