RATING CERTIFICATE
Sail number : 7

YACHT DESCRIPTION

Name of Yacht: BRISTOL 1 7 Photo 1 - Photo 2...
Request date : 2025-02-16
Launch year :2024
Designer : Jack Holt
Design year : 2023
Builder : Bristol aero Plastics
Class name : Yachting World Diamond
Usual place of sailing : River Severn Estuary

Declared dimensions :
Lenght Over All (LH) = 9.18 m
Length on the Water Line (LWL) = 7.02 m
Max width (BH) = 2.11 m
TE Centerboard down = 1.70 m
TE centerboard up = 0.70 m
Displacement factor (FD) = 2.092

Correction factor calculation

Type of rig : bermudian sloop = 1
Hull: modern 2
C2 = 0.04 Kref = 0.191
C2a = 0.102
Performance group : Performance class 1 = 0.2
Vintage bonus (build): 2024 = 0.108
Vintage bonus (design): 2023 = 0.106
Cumulative vintage bonus: 0.214
Hull material : other = 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
Year of mast change : 2013 = -0.1
No spar change = 0
Sails material : type 2 = 0
Propeller type : sans = 0
Winches ? : with = 0

Correction factor (C)= 1.573
BERMUDIANS
Max foresail area: 9.97 m²
Genoa HLU = 7.29 ; HLP = 2.62

BERMUDIANS
Main total area: 16.5 m²
Mainsail P = 8.15 ; E = 3.52

Larger downwindsail area:
SL / ALE = 8.30, SL / ALU = 8.30,
SHW / AMG = 5.00, SFL / ASF = 5.10
Area: 34.72 m²

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

RATING ( Rc ): 9.6638

Time corrected Factor ( Ftc ): 0.9365

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 :

2025-02-16

JCH commission member :

Costalas Peter

Certificate number :

2-165-4222