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Catalina 36 MkI Fin keel

Sailboat specifications

The Catalina 36 MkI is a 36’4” (11.07m) cruising sailboat designed by Frank Butler (United States). She was built between 1982 and 1994 by Catalina Yachts (United States). The Fin keel version adopts a classical fin configuration, the easiest option to provide a low center of gravity.

The Catalina 36 MkI is as well listed, on Boat-Specs.com, in Wing keel and Tall rig version (see all the versions compared).

Catalina 36 MkI's main features

Model
Catalina 36 MkI
Version
Fin keel
Hull type
Monohull
Category
Offshore cruising sailboat
Sailboat builder
Sailboat designer
Country
United States
Construction
Hull and deck: GRP (glass reinforced polyester)
Number of hulls built
About 1800
First built hull
1982
Last built hull
1994
Appendages
Keel : fin without bulb
Helm
Single helm wheel
Rudder
Single spade rudder
Unsinkable
No
Trailerable
No
Standard public price ex. VAT (indicative only)
N/A

Catalina 36 MkI's main dimensions

Hull length
36’ 4”11.07 m
Waterline length
30’ 2”9.22 m
Beam (width)
11’ 11”3.63 m
Draft
5’ 10”1.78 m
Light displacement (MLC)
13499 lb6123 kg
Ballast weight
6001 lb2722 kg
Ballast type
Cast iron

Catalina 36 MkI's rig and sails

Upwind sail area
555 ft²51.56 m²
I
 iFore triangle height (from mast foot to fore stay top attachment)
44’ 10”13.64 m
J
 iFore triangle base (from mast foot to bottom of forestay)
14’4.27 m
P
 iMainsail hoist measurement (from tack to head)
39’11.89 m
E
 iMainsail foot measurement (from tack to clew)
12’3.66 m
Rigging type
Sloop Marconi masthead
Mast configuration
Deck stepped mast
Rotating spars
No
Number of levels of spreaders
1
Spreaders angle
0 °
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire

Catalina 36 MkI's performances

Upwind sail area to displacement
 iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.

The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size.

Upwind: under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 25 it indicates a fast sailboat.
166 ft²/T15.41 m²/T
Displacement-length ratio (DLR)
 iThe Displacement Length Ratio (DLR) is a figure that points out the boat's weight compared to its waterline length. The DLR is obtained by dividing the boat's displacement in tons by the cube of one one-hundredth of the waterline length (in feet).
The DLR can be used to compare the relative mass of different sailboats no matter what their length:

a DLR less than 180 is indicative of a really light sailboat (race boat made for planning), while a DLR greater than 300 is indicative of a heavy cruising sailboat.
221
Ballast ratio
 iThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared.

The higher the ballast ratio is, the greater is the stability.
44 %
Critical hull speed
 iAs a ship moves in the water, it creates standing waves that oppose its movement. This effect increases dramatically the resistance when the boat reaches a speed-length ratio (speed-length ratio is the ratio between the speed in knots and the square root of the waterline length in feet) of about 1.2 (corresponding to a Froude Number of 0.35) . This very sharp rise in resistance, between speed-length ratio of 1.2 to 1.5, is insurmountable for heavy sailboats and so becomes an apparent barrier. This leads to the concept of "hull speed".
The hull speed is obtained by multiplying the square root of the waterline length (in feet) by 1.34.
7.37 knots

Catalina 36 MkI's auxiliary engine

Engine(s)
1 inboard engine
Engine(s) power
30 HP
Fuel type
Diesel
Fuel tank capacity
33 gal125 liters

Catalina 36 MkI's accommodations and layout

Cockpit
Closed aft cockpit
Cabin(s)
2
Berth(s) (min./max.)
4 / 6
Head(s)
1
Freshwater tank capacity
47.6 gal180 liters
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First built hull
Hull length
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Oyster Heritage 37 (Oyster)
1984
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Catalina 380 Fin keel (Catalina Yachts)
1987
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Catalina 350 MkII Fin keel (Catalina Yachts)
2007
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Catalina 390 Fin keel (Catalina Yachts)
2001
38’ 8”11.79 m
Catalina 36 MkI Tall rig (Catalina Yachts)
1982
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Catalina 34 MkI Fin keel (Catalina Yachts)
1985
34’ 6”10.52 m
Catalina 355 Fin keel (Catalina Yachts)
2011
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Catalina 36 MkII Fin keel (Catalina Yachts)
1994
36’ 4”11.07 m
Catalina 34 MkII Fin keel (Catalina Yachts)
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Catalina 375 Fin keel (Catalina Yachts)
2008
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Idylle 11.50 Fin keel (Bénéteau)
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Océanis 390 Fin keel (Bénéteau)
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Feeling 1100 Fin keel (Kirié)
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Sun Fizz Fin keel (Jeanneau)
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