The
Catalina 315 is a 31’ (9.45m) cruising sailboat designed by
Gerry Douglas (United States). She is built since 2012 by
Catalina Yachts (United States). The
Wing keel version is offered with a short keel fitted with large winglets. This configuration provides an interesting draft / low center of gravity / upwind performance trade-off. She has been awarded "
2013 - Cruising World - Boat of the Year: Inshore Cruiser".
The
Catalina 315 is as well listed, on Boat-Specs.com, in
Fin keel version (
see all the versions compared).
Catalina 315's main features
Model
Catalina 315
Version
Wing keel
Hull type
Monohull
Category
Cruising sailboat
Sailboat builder
Sailboat designer
Sailboat range
Country
United States
Construction
Hull and deck: GRP (glass reinforced polyester)
First built hull
2012
Last built hull
Still in production
Award(s)
- 2013: Cruising World - Boat of the Year: Inshore Cruiser
Appendages
Keel : wing keel
Helm
Single helm wheel
Rudder
Single spade rudder
Unsinkable
No
Trailerable
No
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 < 0,5mA
Standard public price ex. VAT (indicative only)
Catalina 315's main dimensions
Overall length
31’ 11”9.73 m
Hull length
31’9.45 m
Waterline length
26’ 6”8.08 m
Beam (width)
11’ 7”3.53 m
Draft
4’ 4”1.32 m
Mast height from DWL
48’ 2”14.7 m
Light displacement (MLC)
10600 lb4808 kg
Ballast weight
4400 lb1996 kg
Ballast type
Lead
Catalina 315's rig and sails
Upwind sail area
589 ft²54.72 m²
I
iFore triangle height (from mast foot to fore stay top attachment)42’ 8”13.03 m
J
iFore triangle base (from mast foot to bottom of forestay)11’ 2”3.41 m
P
iMainsail hoist measurement (from tack to head)38’ 8”11.81 m
E
iMainsail foot measurement (from tack to clew)13’ 8”4.19 m
Rigging type
Sloop Marconi (in-mast furling mainsail) 19/20
Mast configuration
Deck stepped mast
Rotating spars
No
Number of levels of spreaders
2
Spreaders angle
0 °
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire
Catalina 315'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.207 ft²/T19.21 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.258
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.42 %
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
Catalina 315's auxiliary engine
Engine(s)
1 inboard engine
Engine(s) power
21 HP
Fuel type
Diesel
Fuel tank capacity
26.9 gal102 liters
Catalina 315's accommodations and layout
Cockpit
Open aft cockpit
Cabin(s)
2
Berth(s) (min./max.)
4 / 6
Head(s)
1
Freshwater tank capacity
34.9 gal132 liters
Holding tank capacity
16.9 gal64 liters
Boiler capacity
6.1 gal23 liters
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