Is My Genoa a 135 or a 150?

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Rortega46

Is my Genoa is a 135% or a 150%?  I understand the ratio is the luff perpendicular compared to the J.  Since J is 13'6", that would indicate a LP of 18'4" or 20'5".  My question is how do I measure the LP?  Can I measure while on the boat unfurled or do I need to remove it from the furler and lay it in the grass?
Randy Ortega
2001 MKII Hull # 1532 M35BC
S/V Yat
New Orleans, LA

Gary Brockman

The best way to get an accurate measurement would be to tail the sail down and measure it on the ground.
Squall
1986 Hull #231
Tall Rig/Fin Keel - Elliptical Rudder
M25XPB - Flexofold 2 Blade 15x10
Marina del Rey, California

Clay Greene

Don't know what model of boat you have but my Mark I manual says that the foot of a tall rig 130 percent genoa is 19.25 feet and the 150 percent genoa is 21.25 feet.  Standard rig is 19.33 feet for the 130 and 21.33 for the 150. 
1989, Hull #873, "Serendipity," M25XP, Milwaukee, Wisconsin

Gary Brockman

The LP for a standard rig and a tall rig is the same as they both share the same J of 13.5 feet. The foot of a sail is partly determined by how high the clew is off the deck, not just the overlap.  The higher the clew, the longer the foot, so, a 150 reacher will have a longer foot than a 150 deck sweeper.

A 130 will have a LP of 17.55 feet (13.5 x 1.3)

A 150 will have a LP of 20.25 feet (13.5 x 1.5)


Squall
1986 Hull #231
Tall Rig/Fin Keel - Elliptical Rudder
M25XPB - Flexofold 2 Blade 15x10
Marina del Rey, California

Stu Jackson

Deck sweeper or not, LP is only ONE number

luff perpendicular
Stu Jackson, C34 IA Secretary, #224 1986, "Aquavite"  Cowichan Bay, BC  Maple Bay Marina  SR/FK, M25, Rocna 10 (22#) (NZ model)

"There is no problem so great that it can't be solved."

Rortega46

Thanks everyone for your replies.  I asked this to make sure my PHRF application is correct.  I will measure LP when it stops raining, when the sun shines again, and when the wind pipes down. 
Randy Ortega
2001 MKII Hull # 1532 M35BC
S/V Yat
New Orleans, LA

John Langford

"When the wind pipes down". I was going to add in jest that the easiest way to sort out if you had a 150 up was to see if if you were out of control in a wind over 10 knots:)
Cheers
John
"Surprise"
Ranger Tug, 29S