Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
What you really need to know is the luff of the 2 sails. Unfortunately, IJPE won't give you that.
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><u><b>From Wikipedia:</b></u> Every sail-plan has maximum dimensions[1][2]. These maxima are for the largest sail possible and they are defined by a letter abbreviation.
J = The base of the foretriangle measured along the deck from the forestay pin to the front of the mast. I = The height measured along the front of mast from the jib halyard to the deck. E = The foot length of the mainsail along the boom. P = The luff length of the mainsail measured along the aft of the mast from the top of the boom to the highest point that the mainsail can be hoisted at the top of the mast. <hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote"> I'm sorry to say that I don't know what the luff of my 135%.
You can guesstimate the luff length with the pythagorean theorem. A squared(I) + B squared(J) = C squared.(Luff) You'll have to estimate how much longer the I measurement would need to be to form a true right triangle with the J.
The other thing to consider is the furler. I assume you have one on your 250 but maybe not on the C25.
As for percentage, the 135% or 110% is derived from comparing the LP (Line perpendicular) of the headsail to the J measurement. The LP on my 135% is 12.15ft. The LP is measured as a straight line from the clew of the headsail to a point on the luff that forms a 90 degree angle at the luff.
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by hotshot9999</i> <br />Thanks, last night I put it on my 250 and a c25 135 is too big, the clew goes past sail tracks, probably close to a 155.
Will need cut or I may sell it and a 155 that I have and just buy a new one.
Thanks <hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote"> Do your sails have hanks or are they setup for a furler?
The age doesn't matter (I think 6 yrs old) only used one year (thats why age doesn't matter at this price) and I bought mylar racing sails and these were stored hanging at my house. 135%, 155% $300 each buyer pays shipping no UV protecter I used a sock. Sock free to first buyer (it needs a rip fixed and could use a new zipper) Full batten Main about 6 yrs old in good condition also $300
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.