Mauri Pro Sailing have over 8000 keelboats rigs specs listed to help you select hardware or calculate loads. Use this list every time you need to determine your boat's sail area. Click on the appropriate letter to find the rig dimensions of your sailboat:
|
If you need immediate assistance finding the proper loads, block or sailboat hardware for your boat, please contact us or call: 1-888-756-8883, our crew is ready to help you. |
|
| How to Calculate Sail Areas |
 The following formulas will give you approximately areas for:
Mainsail = (P x E) / 1.8 (1.6 for racing
profile mainsails)
155% Genoa = (( J x I ) / 2) x 1.65
135% Genoa = (( J x I ) / 2) x 1.44
100% Jib = ( I x J ) / 2
Racing Symmetrical Spinnaker = 1.8 x J x I
Racing Asymmetrical Spinnaker = 1.8 x J x I
Cruising Asymmetrical Spinnaker = 1.65 x J x I |
|
| Formulas Definitions |
"P" is the luff length of the mainsail,
measured along the aft face of the mast from the top of the
boom to the highest point that the mainsail can be hoisted
or black band.
"E" is the foot length of the mainsail,
measured along the boom from the aft face of the mast to the
outermost point on the boom to which the main can be pulled
or to the black band.
"I" is measured along the front
of mast from the genoa halyard to the main deck. The main deck
is where the deck would be if there were no deckhouse.
"J" is the base of the foretriangle
measured along the deck from the headstay pin to the front
of the mast.
"JSP" is the length of the spinnaker
pole or the distance from the forward end of the bowsprit (fully
extended) to the front face of the mast.
"ISP" is measured from the highest
spinnaker halyard to the deck.
"PY" and "EY" are,
respectively the luff length and foot length of the mizzen
of a yawl or ketch measured in the same way as for the mainsail.
"IY" is the measurement from the
staysail halyard to the deck.
"JY" is the measurement from the
staysail stay to the front face of the mast.
"LP" is the shortest distance between
the clew and the luff of the genoa.
|
