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PHRF - Measurement

 

PHRF Measurement Instructions
The measurements required on the application are the actual measurements of your boat and sails. Please use the following guide when filling out your application form.

Boat Identification
Name: Please indicates the person who you wish to receive the mail and be responsible for keeping the boat in measurement trim.
Class: This refers to the type of boat being handicapped. State the builder and the overall length. If the builder has produced more than one model please indicate (ex. C&C 35-3, the third model of the C&C 35.)
Club: Indicate club membership. A copy of all records and a measurement certificate will be sent to the Club Measurer. You may only indicate one club as that determines the handicapper responsible for your certificate.

Basic Dimensions
I: Fore triangle height, measured from the "main deck datum" to the top of the genoa or spinnaker halyard shive, whichever is higher. Main deck datum is 4% of the beam above the shear line. (Ex. a boat with a 9.5’ beam would have main deck datum .38’ above the shear. (.04x9.5’=. 38’) This boat would subtract .38’ from the distance between the shear and the top of halyards when determining "I".
J: Base of fore triangle, measured horizontally from the fore side of the mast to a point form the forestay attaches to the deck.
P: Luff length mainsail, measured from tack to head when stretched to the maximum sailing tension. The "P" must be marked with black bands when different from standard "P".
E: Foot length mainsail, measured from aft side of the mast to the clew when stretched to maximum sailing tension. The "E" must be marked with "black bands 1" wide if actual "E" is smaller than standard "E".
SPL: Spinnaker Pole length, measured from center of mast to extreme end of pole when pole mounted horizontally and 90 degrees from fore and aft.

Genoa
LP: Measured from clew to closest point on luff.
LLJ: Luff Length Largest headsail, measured from tack to head when stretched to the maximum tension used when sailing. If in doubt project luff and foot (tack) or luff and leach (head) to the point of intersection.

Spinnaker
LLS: Luff Length Spinnaker, measured from head to clew when stretched taut.
G: Girth of spinnaker, measured by folding the spinnaker in half, measuring maximum half width and doubling.

ASYMMETRIC SPINNAKER
LUFF: Asymmetric Spinnaker Luff, measured from head to tack.
LEACH: Asymmetric Spinnaker Leach, measured from head to clew.
DH: Girth between points .5' from head on luff and leach
D1: Girth between points 1/4 leach and 1/4 luff from head
D2: Girth between points 1/2 leach and 1/2 luff from head
D3: Girth between points 3/4 leach and 3/4 luff from head
DF: Foot

Mainsail
HB: Headboard, measured from the luff of the mainsail to the leach at the widest part of the headboard.
The measurement points for MGU and MGM are found by the following procedure.
* Find the mid point leach by folding the head to; the clew. Mark mid point with pencil.
* Find the ¾ point leach by folding the head to;the mid point leach. Mark ¾ point leach with pencil.
MGU: Mainsail Girth Upper, measure from ¾ leach to closest point on luffMGM: Mainsail Girth Middle, measure from mid point leach to closest point on luff

Propeller
It is important to indicate if engine has fixed, folding or an outboard motor as this can significantly alter the rating assigned.
Outboard boats will be rated for outboards permanently mounted and ready for use on a bracket with no part of assembly immersed while sealing. If the boat does not fit this criteria give details.

 

    
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