Catalina 310 Fin keel

Sailboat specifications

The Catalina 310 is a 31’1” (9.49m) cruising sailboat designed by Gerry Douglas (United States). She was built between 1999 and 2012 by Catalina Yachts (United States). The Fin keel version offers a deeper L-shaped keel bringing extra performance especially upwind. She has been awarded "2000 - Cruising World - Boat of the Year: Pocket Cruiser ".

The Catalina 310 is as well listed, on Boat-Specs.com, in Wing keel version (see all the versions compared).

Catalina 310's main features

Model

Catalina 310

Version

Fin keel

Hull type

Monohull

Category

Cruising sailboat

Sailboat builder

Catalina Yachts

Sailboat designer

Gerry Douglas

Country

United States

Construction

Hull and deck: GRP (glass reinforced polyester)

First built hull

1999

Last built hull

2012

Award(s)

2000: Cruising World - Boat of the Year: Pocket Cruiser

Appendages

Keel : L-shaped keel (with bulb)

Helm

Single helm wheel

Rudder

Single spade rudder

Unsinkable

Trailerable

EC design category iThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions) A: Wind < force 9, Waves < 10m B: Wind < force 8, Waves < 8m C: Wind < force 6, Waves < 4m D: Wind < force 4, Waves < 0,5m

Standard public price ex. VAT (indicative only)

N/A €

Catalina 310's main dimensions

Hull length: 31’ 1”9.49 m
Waterline length: 26’ 6”8.08 m
Beam (width): 11’ 6”3.51 m
Draft: 5’ 8”1.75 m
Light displacement (M_LC): 10701 lb4854 kg
Ballast weight: 4400 lb1996 kg
Ballast type: Lead

Catalina 310's rig and sails

Upwind sail area: 490 ft²45.52 m²
Rigging type: Sloop Marconi masthead
Mast configuration: Keel stepped mast
Rotating spars: No
Number of levels of spreaders: 2
Spreaders angle: 0 °
Spars construction: Aluminum spars
Standing rigging: 1x19 strand wire

Catalina 310'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.: 171 ft²/T15.88 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.: 261
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.: 41 %
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.: 6.90 knots