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Seller's Description

If you are in the market for a ready to enjoy cruiser, don’t miss the opportunity to see this well equipped Catalina 320. With her wide beam, her large comfortable cockpit has plenty of room for your crew and the walk-through transom gives easy access to the swim platform for in water activities or loading from the stern. Follow the lifelines toward the bow and find easy passage to the fore deck with wide walkways and stainless steel handrails. Below decks you will find a very organized interior with a 2 stateroom layout. The galley features a large and easy to access double refrigerated icebox, double stainless sink, gimballed propane stove/oven, and lots of storage. The private aft cabin has plenty of room to stretch out and offers ample storage and a changing seat. There is good access to the Yanmar engine from both the main cabin and the aft cabin. Idlewild features recently replaced sails with a new Doyle Stack Pack and Lazy Jacks in 2019. Her bottom was completely refurbished in 2014 with barrier coat and 4 coats of ablative and has been hauled, inspected, and repainted every two years. Recent upgrades include Lithium Iron Phosphate batteries, new plumbing fixtures, memory foam mattress in aft stateroom, and more. See the full details and call today to make an appointment to see this popular Catalina model before she is gone!

Specs

Designer
Gerry Douglas
Builder
Catalina Yachts
Association
Catalina 320 International Association
# Built
?
Hull
Monohull
Keel
Fin + Bulb
Rudder
Spade
Construction
FG

Dimensions

Length Overall
31 11 / 9.8 m
Waterline Length
27 11 / 8.5 m
Beam
10 11 / 3.4 m
Draft
4 0 / 1.2 m
Displacement
11,300 lb / 5,126 kg
Ballast
4,000 lb / 1,814 kg

Rig and Sails

Type
Sloop
Reported Sail Area
520′² / 48.3 m²
Total Sail Area
520′² / 48.4 m²
Mainsail
Sail Area
252′² / 23.4 m²
P
37 11 / 11.6 m
E
13 3 / 4 m
Air Draft
?
Foresail
Sail Area
269′² / 25 m²
I
43 6 / 13.3 m
J
12 4 / 3.8 m
Forestay Length
45 3 / 13.8 m

Auxilary Power

Make
Yanmar
Model
3GM30F
HP
27
Fuel Type
Diesel
Fuel Capacity
?
Engine Hours
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
2

Calculations

Hull Speed
8.1 kn
Classic: 7.09 kn

Hull Speed

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Formula

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL

8.05 knots
Classic formula: 7.09 knots
Sail Area/Displacement
16.5
16-20: good performance

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

Formula

SA/D = SA ÷ (D ÷ 64)2/3

  • SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
  • D: Displacement in pounds.
16.52
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
35.4
<40: less stiff, less powerful

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Formula

Ballast / Displacement * 100

35.39
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
230.2
200-300: moderate

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

Formula

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet
230.18
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
22.2
20-30: coastal cruiser

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Formula

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)

  • D: Displacement of the boat in pounds
  • LWL: Waterline length in feet
  • LOA: Length overall in feet
  • Beam: Width of boat at the widest point in feet
22.21
<20: lightweight racing boat
20-30: coastal cruiser
30-40: moderate bluewater cruising boat
40-50: heavy bluewater boat
>50: extremely heavy bluewater boat
Capsize Screening
2.1
>2.0: better suited for coastal cruising

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

Formula

CSV = Beam ÷ ³√(D / 64)

  • Beam: Width of boat at the widest point in feet
  • D: Displacement of the boat in pounds
2.09
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Draft for winged keel vers: 1.3m/4.25’
Updated MARK II version introduced in 1999.

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