Sailboat specifications and datasheets

Catalina 27 wing keel

The Catalina 27, here in "wing keel" version, is a 26’10” monohull sailboat designed by Frank Butler and Robert Finch. She was built by Catalina Yachts (United States) and made of GRP (glass reinforced polyester). This sailboat was produced between 1971 and 1991 with 6662 hulls completed.

The Catalina 27 is as well listed, on, in version Standard and Tall rig.

Catalina Yachts Catalina 27 Catalina Yachts Catalina 27 sailplanCatalina Yachts Catalina 27 sailingCatalina Yachts Catalina 27 sailingCatalina Yachts Catalina 27 accommodationsCatalina Yachts Catalina 27 accommodationsCatalina Yachts Catalina 27 accommodations
Catalina 27's   Main Features
Model Catalina 27
Version Wing keel
Type of hull Monohull
Category Cruising sailboat
Designer Frank Butler
Robert Finch
Construction GRP (glass reinforced polyester)
First built hull 1971
Last built hull 1991
Number of hulls built 6662
Appendages Keel :
Wing keel
Helm 1 tiller
Rudder 1 spade rudder
Cockpit Closed aft cockpit
Unsinkable No
Trailerable No
Standard public price ex. VAT (indicative only) N/A
Catalina 27's   Main dimensions
Hull length 26’ 10”
Waterline length 21’ 10”
Beam (width) 6’ 10”
Draft 3’ 5”
Light displacement 6748 lbs
Ballast weight 2601 lbs
Ballast type Cast iron
Catalina 27's   Rig and sails
Upwind sail area 341 sq.ft
Mainsail area 151 sq.ft
Jib area 190 sq.ft
Rigging type Sloop Marconi masthead
Rotating spars No
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire continuous
Number of levels of spreaders 1
Spreaders angle 0 °
IiFore triangle height (from mast foot to fore stay attachment) 34’ 6”
JiFore triangle base (from mast foot to bottom of forestay) 11’ 4”
PiMainsail hoist measurement (from tack to head) 28’ 8”
EiMainsail foot measurement (from tack to clew) 10’ 6”
Catalina 27's   Performances
Upwind sail area to displacementiThe 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 23 it indicates a fast sailboat.
Displacement-Length ratio (DLR)iThe Displacement Length ratio is a figure that points out the boat's weight compared to its waterline length. 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.
Ballast ratioiThe Ballast ratio is an indicator of the stability; it is obtained by dividing the boat's displacement by the weight of the ballast. Since the stability depends also of the hull shape and the position of the center of gravity, only boats with similar ballast arrangements and hull shape should be considered.
Higher the ballast ratio is, greater is the stability.
39 %
Hull speediAs 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.
6.25 knots
Catalina 27's   Accommodation
Cabin(s) 1
Berth(s) (min/max) 2 / 6
Head(s) 1

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