I meaurement

Jun 22, 2015
3
Hunter 335 oakville
When sailmakers quote I measurement, do they take into consideration furling gear. I measured the luff of my 335 and (all my head sails were lost - long story). The luff I got is about 2' shorter than quoted by my sailmaker. Yes, I can hoist a tape measure again but I wondered if all the sage ones here might help also.
 
Nov 8, 2010
11,386
Beneteau First 36.7 & 260 Minneapolis MN & Bayfield WI
No. I is an absolute maximum number, almost theoretical.

Them asking your to 'measure' your boat is different. Normally they will not ask you to measure your 'I'. They'll ask you to measure things that will effect your sail.
 

jimg

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Jun 5, 2004
175
catalina 27 dana point
The I, J, P,and E measurements are measurements of the boat, not the sails.
 

jimg

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Jun 5, 2004
175
catalina 27 dana point
I guess I should clarify. P and E are the maximum allowable hoist and foot length for the main and should be marked with bands of tape or paint. J and I are strictly measurements of the boat itself.