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Dimensions of Int'l folkboat ib

Updated 10/25/2012

Selected Measurements for Int'l folkboat ib

BOAT
I
J
P
E
ISP
JSP
PY
EY
Disp
LWL
DRAFT
Int'l folkboat ib 26 8.3 28.8 11.2 0 0 0 0 0 19.67 4

Links to our Multi Vendor Used Sail Directory for Int'l folkboat ib

Other Data Base Entries for int*

Click on boat nane to use
BOAT   I J P E ISP SPL PY PELWLDRAFTDISP
BRIDGES POINT 24   24.9 8 28.3 12.5 24.9 8
Bridges Point 24 24.92 8 28.33 12.5 18.673.423944
BRISTOL 19 (SAILSTAR CORINTHIAN 19) 22.5 6.7 23.5 10 14.52.75 2724
BRISTOL 19 CORINTHIAN 22.5 6.7 23.5 10
Bristol 19 Corinthian 22.5 6.7 23.5 10 14.52.82724
BRISTOL 19 CORINTHIAN 22.5 6.7 23.5 10 22.5 6.7
CORINTHIAN 19 (SAILSTAR)   22.5 6.7 23.5 10 14.52.75 2724
Corinthian 28 33.3 10 29 13 33.3 10
CORINTHIAN 28 33.33 10.5 29 13 21.253.75 6860
CORSAIR SPRINT 750 29.27 10.8 32.3 10.75 23.585.25 1700
F 3 HINTERHOELLER 36   48.3 14.5 42.3 13.3
Herreshoff Araminta 33   34.8 12.6 38.3 15.17 28.25512800
HERRESHOFF ARAMINTA 33 34.8 12.6 38.3 15.2 34.8 12.6 20.8 9
HINTERHOELLER 25 26 10 24 9.5 19.833.5 3600
Hinterhoeller 25 26 10 24 9.5 19.833.53600
HINTERHOELLER 25 26 19.5 24 10 26 19.5
HINTERHOELLER 25 26 9.5 24 10
HINTERHOELLER 28 34 11.2 29 12
HINTERHOELLER 28 34 11.2 29 12 213.75 6000
Hinterhoeller 28 34 11.2 29 12 20.7546700
HINTERHOELLER 28 49+ 34 11.2 29 12 34 11.2
HINTERHOELLER 30 30.5 10.3 26.2 12.3
HINTERHOELLER 30 30.5 10.3 26.2 12.3 23.214.3 4500
Hinterhoeller 30 30.5 10.3 26.2 12.3 23.214.34500
HINTERHOELLER 30 30.5 10.3 26.2 12.3 30.5 10.3
Hinterhoeller 32 38.56 13.26 33 10.68 26.057100
HINTERHOELLER 32 38.6 13.3 33 10.7 38.6 13.3
Hinterhoeller 35 38.56 13.26 33 10.68 26.057100
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
INTERGLOBE 30 36.8 12.3 31.8 12.7 36.8 12.3
INTERNATIONAL 1006 33.69 10.5 37.4 12.47 28.215.417385
INTERNATIONAL 21 23.7 7 18.7 8.7
INTERNATIONAL 23 28.08 10.25 23 8.75 19.834.67 3090
INTERNATIONAL 23 28.1 10.3 23 8.8
International 23 28.1 10.3 23 8.8 19.831.33090
INTERNATIONAL 23 28.1 10.3 23 8.8 28.1 10.3
INTERNATIONAL 500 38.5 11.5 35.5 15.5
International 500 38.5 11.5 35.5 15.5 23.54.811200
INTERNATIONAL 500 38.5 11.5 35.5 15.5 38.5 11.5
INTERNATIONAL 500 38.5 12 35.5 15.5 23.54.7511200
International 500 Y 38.5 11.5 33.6 14 23.54.811200
INTERNATIONAL 500 YAWL 38.5 11.5 33.6 14
INTERNATIONAL 500 YAWL 38.5 11.5 33.6 14 38.5 11.5
INTERNATIONAL 600 43 13.3 36.5 16
International 600 43 13.3 36.5 16 26515000
INTERNATIONAL 600 43 13.3 36.5 16 265.5 16000
INTERNATIONAL 600 43 13.3 36.5 16 43 13.3
INTERNATIONAL 800 47.8 16.4 42 16.3
INTERNATIONAL 806 28 9.02 29.53 9.84 22.973.41 3968
INTERNATIONAL FLYING 15 22.6 7.3 20.5 9.8
INTERNATIONAL FLYING 15 22.6 7.3 20.5 9.8 22.6 7.3
INTERNATIONAL FOLKBOAT 26 8.3 28.8 11.2 19.834 4740
INTERNATIONAL OD 29.3 8.3 38.8 16.3
International Od 29.3 8.3 38.8 16.3 21.425.37100
INTERNATIONAL OD 29.3 8.3 38.8 16.3 29.3 8.3
INTERNATIONAL ONE DESIGN 29.3 8.3 38.8 16.3 21.425.167100
International Tempest 21.25 6.75 25 11.08 191010
INTREPID 28 36 11.92 30.92 10.5 24.54.82 7500
INTREPID 28/9M 36 11.9 30.9 10.5 36 11.9
INTREPID 28/9M SD 36 11.9 30.9 10.5 36 11.9
INTREPID 29.5 (9M) 36 11.9 30.9 10.5
INTREPID 35 42.8 14.3 37.3 13.5
Intrepid 35 42.8 14.3 37.3 13.5 28.085.513600
INTREPID 35 42.8 14.3 37.3 13.5 27.255.615930
INTREPID 35 42.8 14.3 37.3 13.5 42.8 14.3
INTREPID 40 52 16.5 44.8 14.3
INTREPID 40 52 16.5 44.8 14.3 32.755.7 20065
Intrepid 40 52 16.5 44.8 14.3 32.755.720065
INTREPID 40 52 16.5 44.8 14.3 52 16.5
INTREPID 40 CB 52 16.5 44.8 16.5 52 16.5
INTREPID 40 SD 52 16.5 44.8 16.5 52 16.5
Intrepid 9m 36 11.9 30.9 10.5 24.674.87700
INTREPID 9M 36 11.9 30.9 10.5 24.674.82 7700
Intrepid 9m Sd 36 11.92 30.92 10.5 24.673.57700
INTRO 22 27 8.5 27 7.8 27 9 18.244.58 2800
J-133 Cruising Interior   57 17.25 54 18.52 437.519760
J-35 Cr Int 46.4 14.7 41.5 14 30.256.910000
McIntosh 30   37.75 10 33.5 0 37.75 10
Mcintosh 30 37.8 10 33.5 4.8
MCINTOSH 47 60.5 20.5 52 17 407.33 30500
McIntosh 47 60.5 20.5 52 17 60.5 20.5
Mcintosh 47 Sd 60.5 20.5 52 17 405.6730500
McIntosh 47 SD 60.5 20.5 52 17 60.5 20.5
Merit 23 Sprint Cb 28 8.5 23 9.58 1921700
MERIT 23 SPRINT CB 28 8.5 23 9.58 194.7 1700
Merit 23 Sprint CB 28 8.5 23 9.58 28 8.5
Nantucket Splinter   36 10.25 42 12.75 27.56500
NANTUCKET SPLINTER 36 10.3 42 12.8 36 10.3
OLYMPIC 28 CORINTHIAN   33.3 10 29 13 33.3 10
POINTIN 24 (ABLE)   31 10.3 25.5 8.3 19.543750
POINTIN 24 FR (ABLE) 28 8.8 30 11 19.55.1 3750
POINTIN 29 40.5 12.5 34 10
POINTIN 29 40.5 12.5 34 10 23.425.27100
Pointin 29 40.5 12.5 34 10 23.425.27100
POINTIN 29KET 40.5 12.5 34 10 40.5 12.5
POINTIN 36 40 13 44 16
POINTIN 36KET 40 13 45 15 40 13
SPRINT 750   29.27 10.8 32.3 10.75 23.585.5 1756
SPRINTA 23 SPORT 25.3 8.2 27.2 9.5
SPRINTA 33.2 D. B. I. 36.8 11.7 41 14.8
Sprinta Sport 25.3 8.2 27.3 9.5 194.32425
SPRINTA SPORT 25.3 8.2 27.3 9.5 19.084.42 2425
SPRINTA SPORT 23 25.3 8.2 27.3 9.5 25.3 8.2
SPRINTO (SK) 21.88 5.91 26.64 10.37 21.495.25 1543
TRINTELLA 42   53.8 17.2 47.8 15.9
Trintella 42 57 17.3 51 16 34.756.423841
TRINTELLA 42 57 17.3 51 16 34.756.42 23841
TRINTELLA 42 57 17.3 51 16 57 17.3
TRINTELLA 42 Tall rig 56.8 17.2 50.9 16.1
TRINTELLA 44 56.5 18 50 14.5
Trintella 44 56.5 18 50 14.5 35.427.253400
TRINTELLA 44 56.5 18 50 14.5 56.5 18
TRINTELLA 44 57 17.3 51 16 35.16.4 34000
TRINTELLA 45 56.9 18.4 50.7 16.9
TRINTELLA 45 62.3 18 55 16.8 62.3 18
TRINTELLA 45 Tall rig 61.5 18.4 55.1 16.9
Trintella 47 62 17.72 58.33 18.77 37.846.4536000
TRINTELLA 53 63.3 20.2 55.8 19.4
TRINTON 21 26 7.8 26.5 9
TRINTON Frac rig 30.2 9.8 31 13.8
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
Int'l folkboat ib 26 8.3 28.8 11.2 26 8.3 0 0 0 19.67 4

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 = 161 sq ft
Racing Mainsail (add 10%) = 177 sq ft

Genoa

155% Genoa = (( J x I ) / 2) x 1.65 = 178 sq ft
135% Genoa = (( J x I ) / 2) x 1.44 = 155 sq ft

Jib

  _______
LP of full fore triangle = ( I x J ) / √  I2 + J2 = 7.9
Jib size to fill fore triangle = 95%
100% Jib = ( I x J ) / 2 = 108 sq ft

A more accurate LP calculator is HERE

Spinnaker

Spinnaker Area = Max Luff x Max Girth x ( 70-85%) = 271 to 329 sq ft
"Square" Spinnaker Area = Max Luff x Max Girth) = 387 sq ft
AC Area = 323 sq ft
Maximum Luff (.95 * sqrt (JSP^2 + ISP^2) = 25.93 feet
Maximum Girth = 1.8 * JSP = 14.94 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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