JCH RATING CALCULATION FORM

Please read carefully the 2015 JCH rules document before entering the yacht details.

Name of Yacht :

Build year :

Designer :

Design year (if different) :

Shipyard :

Class name :

Sail number :

usual place of sailing :



Type of boat:

rigging :   

type of hull  :

Boat from a regatta class, day boat and/or open boat : 

Hull material :

Mast material : 

Boom material :

Material of mast or boom different from original : 

Material of other spar different from original :



Equipments :

Leech round compliant with JCH rule
( read JCH documentation 2013) please check :

YES

NO


Sails material :

propeller :

Mainsail luff equipped
with batten cars
with ball bearings

winches  ?

Specifications are in Meters and Tons for the displacement :

Lenght Over All (LOA)  =

m

Length on the Water Line  ( LWL )  =

m

Specification Class 3 (for information only) :

Max width ( Bo )  =

m

1957 RORC Rating :

m

draft (maxi for set-in kell) =

m

Specification Class 4 (for information) :

displacement * ( D )  =

metrics tons

IOR Rating :

feets

* global weight (in metrics tons) without crew members

Sail mesurement specifications

Bermudians : foresail area   maxi (Genoa area or High cut jib area + Staysail area or flying jib area + Jib area + Staysail area)

genoa JL =

m

jib or staysail JL =

m

yankee JL =

m

genoa LPG =

m

jib or staysail LPG =

m

yankee LPG =

m

Bermudians : Mainsail

Bermudians : mizzen

P =

m

P =

m

E =

m

E =

m


Gaffers : Foresails

staysail JL =

m

jib JL =

m

flying jib JL =

m

staysail LPG =

m

jib LPG =

m

flying jib LPG =

m

Gaffers : mainsail

Gaffers : mizzen
Gaffers : Topsail

A =

m

A =

m

F =

m

B =

m

B =

m

G =

m

C =

m

C =

m

H =

m

D =

m

D =

m

E =

m

E =

m


Bermudians et Gaffers : largest downwindsail

SL or ALE =

m

SMG or AMG =

m

SL or ALU =

m

SF or ASF =

m


Mizzen staysail

ALE =

m

AMG =

m

ALU =

m

ASF =

m

Fisherman

A =

m

C =

m

E =

m

B =

m

D =

m


Following informations will not be published.
We need them for more information in order to validate the rating .

EMAIL (to be informed about the rating certificate) :

Contact name :

Telephone number :

 


Illustrations relative to type of Hull :

Illustrations for measurement of sails
All measurements are taken on the sails except P and E.
P and E shall be measured on the spars and, in case no measurement marks are available, the maximum dimension taking into account the rig and fittings will be measured.

Mainsails as well as mizzen and foresails areas of Bermudian yachts are calculated with a standard leach round of 15%.
Flying sails rigged between two masts (e.g. fishermen) are not taken into account in the foresails area.
If applicable, they have an impact on downwind sails.
A foresail is a sail that has its luff attached to a stay and with a half width less than 55% of its luff perpendicular (SF or ASF)

foresails

 

Fisherman

Symmetric Spinnaker _________________________________Asymmetric Spinnaker

Illustrations relative to the measurement of the hull

- LOA Length over all in metres : it is the maximum length of the hull, excluding pulpits, measured between two perpendiculars.
- LWL Length of waterline

Depending on the stern design, measurements are illustrated below.