RATING CERTIFICATE

YACHT DESCRIPTION

Name of Yacht: Johanna Lucretia Photo 1 - Photo 2...
Request date : 2021-06-23
Launch year :1945
Builder : Rhoos. Ghent
Usual place of sailing : Northan Europe

Declared dimensions :
Lenght Over All (LH) = 20.00 m
Length on the Water Line (LWL) = 17.26 m
Max width (BH) = 5.50 m
Draft (TE) = 2.85 m
Displacement factor (FD) = 61.847

Correction factor calculation

Type of rigging : topsail schooner = 0.85
Hull: traditional
C2 = -0.086 Kref = 0.16
C2a : 0.01
Performance group : Performance class 4 = -0.05
Vintage bonus (build): 1945 = -0.005
Vintage bonus (estimated): 1944 = -0.006
Cumulative vintage bonus: -0.011
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 ? : without = -0.05

Correction factor (C)= 0.585
GAFFERS
Foresail area: 59.83 m²
StaysailHLU = 10.15 ; HLP = 4.95
JibHLU = 15.70 ; HLP = 4.10

GAFFERS
Main total area: 127.83 m²
Gaffer Mainsail
MAE = 14.30, MAH = 8.15,
MAU = 8.95, MAD = 11.40, MAF = 8.15
Mizzen or Jigger sail
MAE = 10.80, MAH = 5.90, MAU = 7.20, MAD = 8.70, MAF = 5.45
With Gaff topsail
FE = 7.90, FU = 7.20, FF = 11.30

Larger downwindsail area:
SL / ALE = 5.00, SL / ALU = 5.00,
SHW / AMG = 6.70, SFL / ASF = 6.70
Area: 27.92 m²

RATING ( Rc ): 6.6884

Time corrected Factor ( Ftc ): 0.8376

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 :

2021-06-23

JCH commission member :

Costalas Peter

Certificate number :

6-231-3380