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Dimensions of Ct-42 (mermaid)

Updated 10/25/2012

Selected Measurements for Ct-42 (mermaid)

BOAT
I
J
P
E
ISP
JSP
PY
EY
Disp
LWL
DRAFT
Ct-42 (mermaid) 38.58 15.83 39.33 17.5 0 0 27.5 0 23900 30.25 6

Links to our Multi Vendor Used Sail Directory for Ct-42 (mermaid)

Other Data Base Entries for ct*

Click on boat nane to use
BOAT   I J P E ISP SPL PY PELWLDRAFTDISP
Columbia 36 Rectangular Keel   41.8 15 34.7 14 41.8 15
Ct 35 38 13 33.7 14 26.54.816000
CT 35 38 13 33.7 14 38 13 24 9.8
Ct 37 50.8 19.5 44 15.3 315.723870
CT 37 50.8 19.5 44 15.3 50.8 19.5
Ct 38 45 15.8 39.5 13.8 6.616775
CT 38 45 15.8 39.5 13.8 45 15.8
CT 40 51.3 15.7 46.7 12 51.3 15.7
Ct 40 51.3 15.8 46.8 12 33.56.128000
Ct 41 47.5 16.5 42.3 18.9 32.5627500
CT 41 47.5 16.5 42.3 18.9 47.5 16.5 28.4 12.2
CT 42 44.6 15.8 39.3 17.5 44.6 15.8 27.5 10.4
CT 43 Ron Holland 55 17 48.6 16 55 17
CT 43 Ron Holland SD 55 17 48.6 16 55 17
Ct 44 57 17.7 50.8 14.5 37.58623000
CT 44 57 17.7 50.8 14.5 57 17.7
CT 44 SD 57 17.7 50.8 14.5 57 17.7
Ct 47 53 18.75 47 17.5 37.5629395
CT 47 53 18.8 47 17.5 53 18.8 30 11.3
Ct 47 Ctr 55.66 18.33 50.33 16.66 37.5629395
CT 47 Cutter 55.7 18.3 50.3 16.7 55.7 18.3
CT 47 SD 53 18.8 47 17.5 53 18.8 30 11.3
CT 48 56 18.8 49 17.5 56 18.8 30 11.3
CT 48 SD 56 18.8 49 17.5 56 18.8 30 11.3
Ct 49 58 19.5 54.5 16.8 37.5629000
CT 49 58 19.5 54.5 16.8 58 19.5
Ct 49 Tm 61 20 54 16.5 37.5629000
CT 49 TM 61 20 54 16.5 61 20
Ct 54 60 24 54 19.5 42.56.554000
CT 54 60 24 54 19.5 60 24
CT 56 64 24 59 19 64 24 39 13
CT 56 SD 64 24 59 19 64 24 39 13
Ct 65 68 27.3 60.5 19.25 50.83777400
CT 65 68 27.3 60.5 19.3 68 27.3 39 13.5
CT 65 SD 68 27.3 60.5 19.3 68 27.3 39 13.5
CT-35 38 13 33.7 14 26.754.75 16900
CT-37 50.8 19.5 44 15.3 31.835.67 23870
CT-38 45 15.8 39.5 13.8 30.836.58 16775
CT-41 47.5 16.5 42.3 18.9 28.42 32.56 27500
CT-42 (MERMAID) 38.58 15.83 39.33 17.5 27.5 30.25623900
CT-43 52.5 17 46.75 16 33.856.75 23780
CT-44 57 17.7 50.8 14.5 37.584.92 20216
CT-47 53 18.75 47 17.5 37.56 29395
CT-47 CTR 55.66 18.33 50.33 16.66 37.56 29395
CT-48 56 18.75 49 17.5 30 37.56.33 40000
CT-49 58 19.5 54.5 16.8 37.56 29395
CT-49 TM 61 20 54 16.5 37.56 29395
CT-54 60 24 54 19.5 42.56.5 57000
CT-65 / SCORPIO 72 68 27.25 60.42 19.25 39 50.837 77400
DUFOUR 12000 CT   46.8 15.1 40.7 11.5
DUFOUR 12000 CT 46.8 15.1 40.7 11.5 34.36.73 27060
Dufour 12000 Ct 46.8 15.1 40.7 11.5 34.36.827060
DUFOUR 46 12000CT 46.8 15.1 40.7 11.5 46.8 15.1
DUFOUR 46 12000CT SD 46.8 15.1 40.7 11.5 46.8 15.1
ELECTRA (PEARSON)   26.5 8.5 23 10 16.753 3000
HANS CHRISTIAN 40 CTA   50 17.5 43.1 15.5
Hans Christian Cta 40 50 17.5 43.08 15.46 33.1622500
INVICTA (PEARSON)   38.5 15.2 33 16.1 16 257.7 15000
INVICTA II (PEARSON) 41 15.2 35.5 16.8 258.617750
IRWIN 52 "CORRECT B" 61.6 21.2 56.7 19 32.8 11
JDB DACT   40 12 44 14.3
JEANNEAU 36.0 SELECTION 38.9 12.1 43.5 16.4
JEANNEAU 37 SELECTION 38.9 12.1 43.8 16.4
Jeanneau 37 Selection 38.9 12.1 43.8 16.4 29.336.39980
Jeanneau 37 SELECTION 38.9 12.1 43.8 16.4 38.9 12.1
Mackinaw 35 Ctr   44.75 17.7 41.7 12.7 295.519200
Mackinaw 35 CTR 44.75 17.7 41.7 12.7 44.75 17.7
Mockingbird 36 Ctr 38 12.78 32.33 14.9 24.55.520000
Pearson Electra   26.5 8.5 23 10 16.7533000
PEARSON ELECTRA 26.5 8.5 23 10 26.5 8.5
PEARSON ELECTRA 26.5 8.8 23.5 9.9
PEARSON INVICTA 38.5 15.2 33 16.1
Pearson Invicta 38.5 15.2 33 16.1 254.515000
PEARSON INVICTA 38.5 15.2 33 16.1 38.5 15.2 16 8.2
Pearson Invicta Ii 41 15.2 35.5 16.8 254.517750
PEARSON INVICTA Mk 2 41 15.2 35.5 16.8
PEARSON INVICTA-2 41 15.2 35.5 16.8 41 15.2
Prospect 28 34 10.25 28.25 8.5
PROSPECT 28 34 10.3 28.3 8.5 34 10.3
SELECTION 36 (JEANNEAU)   38.92 12.1 43.8 16.4 29.336.25 9980
VICTOIRE 933   37.07 13.78 31.82 10.83 24.935.9 9920
VICTORIA 18 17 5.5 18 9.5
Victoria 18 17 5.5 20 9 12.8321200
VICTORIA 18 17 5.5 20 9 12.832 1250
VICTORIA 18 17 5.5 20 9 17 5.5
VICTORIA 18 Tall rig 17 5.5 20 9
VICTORIA 26 34.5 9.75 29.39 11.5 21.253.83 6800
Victoria 26 Francis 34.5 9.75 29.39 11.5 21.253.836800
VICTORIA 26 FRANCIS 34.5 9.8 29.4 11.5
VICTORIA 26 FRANCIS 34.5 9.8 29.4 11.5 34.5 9.8
VICTORY 21 24 7.7 20.6 10.1
VICTORY 21 24.4 7.3 20.75 9.7 153 1350
Victory 21 24.4 7.3 20.75 9.7 1531535
VICTORY 246 F 24.4 7.3 20.8 9.7 24.4 7.3
Victory 26 26.5 9.83 26.4 9.5 19.62.54800
Victory 35 Cat 41.5 14.8 35.3 16.2
Victory 35 tall 46 15 38.6 14.3
Wauquiez 34 Victoire   42 14.33 13.5 37 286.1712500
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
Ct-42 (mermaid) 38.58 15.83 39.33 17.5 38.58 15.83 27.5 0 23900 30.25 6

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 = 344 sq ft
Racing Mainsail (add 10%) = 378 sq ft

Genoa

155% Genoa = (( J x I ) / 2) x 1.65 = 504 sq ft
135% Genoa = (( J x I ) / 2) x 1.44 = 440 sq ft

Jib

  _______
LP of full fore triangle = ( I x J ) / √  I2 + J2 = 14.6
Jib size to fill fore triangle = 92%
100% Jib = ( I x J ) / 2 = 305 sq ft

A more accurate LP calculator is HERE

Spinnaker

Spinnaker Area = Max Luff x Max Girth x ( 70-85%) = 790 to 959 sq ft
"Square" Spinnaker Area = Max Luff x Max Girth) = 1129 sq ft
AC Area = 941 sq ft
Maximum Luff (.95 * sqrt (JSP^2 + ISP^2) = 39.62 feet
Maximum Girth = 1.8 * JSP = 28.49 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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