RATING CERTIFICATE
Sail number : JN2

YACHT DESCRIPTION

Name of Yacht: Tamarind Photo 1 - Photo 2...
Request date : 2022-05-02
Launch year :1975
Designer : John Negus
Class name : Negus 40
Usual place of sailing : English Channel

Declared dimensions :
Lenght Over All (LH) = 14.00 m
Length on the Water Line (LWL) = 11.40 m
Max width (BH) = 3.80 m
Draft (TE) = 1.80 m
Displacement factor (FD) = 14.874

Correction factor calculation

Type of rig : bermudian ketch = 0.98
Hull: traditional
C2 = -0.086 Kref = 0.16
C2a : -0.004
Performance group : Performance class 4 = -0.05
Vintage bonus (build): 1975 = 0.037
Vintage bonus (estimated): 1974 = 0.036
Cumulative vintage bonus: 0.073
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 ? : with = 0

Correction factor (C)= 0.758
BERMUDIANS
Max foresail area: 50.11 m²
Jib or staysail HLU = 8.00 ; HLP = 3.00
Yankee HLU = 14.40 ; HLP = 5.00

BERMUDIANS
Main total area: 51.35 m²
Mainsail P = 13.00 ; E = 5.00
Mizzen or Jigger sail P = 9.00 ; E = 2.70

Larger downwindsail area:
SL / ALE = 8.20, SL / ALU = 10.20,
SHW / AMG = 2.71, SFL / ASF = 6.00
Area: 25.82 m²

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

RATING ( Rc ): 6.3896

Time corrected Factor ( Ftc ): 0.8265

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 :

2022-05-09

JCH commission member :

Roger M. Jarrett

Certificate number :

5-092-3527