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Dimensions of Boat

Updated 10/25/2012

Selected Measurements for Boat

BOAT
I
J
P
E
ISP
JSP
PY
EY
Disp
LWL
DRAFT
Boat 0 0 0 0 0 0 0 0 0 0 0

Links to our Multi Vendor Used Sail Directory for Boat

Other Data Base Entries for boat*

Click on boat nane to use
BOAT   I J P E ISP SPL PY PELWLDRAFTDISP
Brooklyn Boat Yard 40   45 15.25 38 14.91 27.955.8813570
E BOAT   26.9 8.4 27.8 6.5 26.9 8.4
E BOAT 28.5 8.5 21 16 18.044.6 2150
E-BOAT 28.5 8.5 21 16
E-boat 28.5 8.5 21 16 1851100
FOLKBOAT   19.5 6.1 28.5 11.1
FOLKBOAT 26 26 8.3 28.8 11.2
FOLKBOAT 26 26 8.3 28.8 11.2 26 8.3
FOLKBOAT 26 27 8.3 28.6 11.2
Folkboat 26 27 8.3 28.6 11.2 19.83.95000
Folkboat Fr 21.32 6.56 28.17 11.15 19.683.944700
Folkboat Wd 26 8.3 28.8 11.2 4
H - BOAT   24.5 8 28.5 9.8
H Boat 24.5 8 28.5 9.8 20.674.33190
H BOAT 24.5 8 28.5 9.8 24.5 8
H-boat 24.5 8 28.5 9.8 20.674.33190
H-BOAT 24.5 8 28.5 9.8 20.674.33 3190
H-boat Odr 24.5 8 28.5 9.8 20.674.33190
HERRESHOFF S BOAT 21.8 8.5 36.4 18.6 21.8 8.5
Int'l Folkboat 26 Fg Ob   26 8.3 28.8 11.2 19.6744700
Int'l Folkboat Ib 26 8.3 28.8 11.2 19.674
INTERNATIONAL FOLKBOAT 26 8.3 28.8 11.2 19.834 4740
L Boat 28   36 9.5 32.5 14.5 1935400
L BOAT 28 36 9.5 32.5 14.5 36 9.5
OH Rodgers wingboat   36.8 11 37.6 13.5
P Boat   53.7 22.4 64 22.44 37.437.228612
WHITBY 25 (CONTINENTAL FOLKBOAT)   30.8 9 26.8 11.8 19.833.83 5500
Click Here for other boat types or to check dimensions from other data bases. We now offer three data bases.

Sail Area Calculations

BOAT
I
J
P
E
ISP
JSP
PY
EY
Disp
LWL
DRAFT
Boat 0 0 0 0 0 0 0 0 0 0 0

sailboat rig dimensions The following formulas are approximate
Sail areas depend on lots of factors, leach hollow, foot round, luff hollow etc. Also, remember that jib sail area in general is based on the forestay length, I. But all things considered, these numbers are close but should not be considered exact. They are rules of thumb, not measurements of a this specific boat.

Mainsail

Mainsail = (P x E) / 2 = 0 sq ft
Racing Mainsail (add 10%) = 0 sq ft

Genoa

155% Genoa = (( J x I ) / 2) x 1.65 = 0 sq ft
135% Genoa = (( J x I ) / 2) x 1.44 = 0 sq ft

Jib

  _______
LP of full fore triangle = ( I x J ) / √  I2 + J2 = 0
Jib size to fill fore triangle = 0%
100% Jib = ( I x J ) / 2 = 0 sq ft

A more accurate LP calculator is HERE

Spinnaker

Spinnaker Area = Max Luff x Max Girth x ( 70-85%) = 0 to 0 sq ft
"Square" Spinnaker Area = Max Luff x Max Girth) = 0 sq ft
AC Area = 0 sq ft
Maximum Luff (.95 * sqrt (JSP^2 + ISP^2) = 0 feet
Maximum Girth = 1.8 * JSP = 0 feet
Ref

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.

Data*

This data is supplied as a reference and all boat dimensions should be verified before using it in any critical application.
The information in these data bases is a starting point. There are errors as you can see as the different data bases do not always agree. In addition, some boats have been modified from stock and will not match the data in these databases. None of this data has been checked by L-36.com so please always check your boat before relying on this data.
Data is from a variety of sources.
db = SBD is used under the Creative Commons License sailboatdata.com (sailboatdata.com) / CC BY 3.0
db = PHRF is the PHRF Critical Dimensions database
db = WEB is the commonly available data found on many web sites
db = BIG is a combination of all of the above.

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