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Seller's Description

1987 CAL 33 SAILBOAT

This Cal 33, hull #108, is a super nice example with its great cockpit and cabin layout. This is a very comfortable, sporty and easy sailing design by Raymond Hunt. This boat has some nice upgrades like stainless steel winches, sunbrella bimini, sunbrella mainsail stow system/lazy jacks, autopilot and a very dependable yanmar engine. loa:33 lwl:27.5 beam:11.3 disp.: 10800 ballast 4750 (exterior, lead, epoxy coated 2019) fuel: 24g water: 56g holding: 15g Accommodations The Cal 33 has a great layout for a cruising couple or small family. The interior gives you a wide open feeling with its two double berth at either end of the boat creating an unusually airy feeling to this size boat. the forward berth have a bureau and hanging locker. There are shelves on either side of the v-berth. The mattress is a custom spring mattress. Just aft to starboard is the head with hatch and operable lite ventilation. The central part of the boat is the dining area, galley, and nav center. There is a traditional single settee to port and a large u-shape settee with dinette table to starboard. The motor is positioned beneath the companionway steps. There is a large double quarterberth aft. The cabin has a hatch and ports that open for ventilation. There are two stainless steel dorade vents which constantly refresh the air. There is 6’ headroom throughout the vessel Galley The galley is to port of the companionway and ladder. There is a Stainless steel 2 burner propane stove and oven and a deep double bowl stainless steel sink. The isotherm sp compact classic refrigeration system was new in 2012. There is good storage for cookware, dishes and dry goods. There is good counter work space for preparing onboard meals.

Equipment: Sails and Rigging Isomat, tapered, anodized aluminum mast with double spreaders. Stainless steel wire rigging. New reefing & running lines in 2020. Internal main and jib halyards. New in 2011 harken mk iv roller furler. Genoa tracks with stops on each end. The traveler is coach roof mounted. New in 2011 Doyle Cradlecover on mainsail with laz

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Specs

Designer
Raymond Hunt (C.R. Hunt & Assoc.)
Builder
Jensen Marine/Cal Boats
Associations
?
# Built
?
Hull
Monohull
Keel
Fin
Rudder
Spade
Construction
FG

Dimensions

Length Overall
33 0 / 10.1 m
Waterline Length
27 5 / 8.4 m
Beam
10 11 / 3.4 m
Draft
6 0 / 1.8 m
Displacement
10,800 lb / 4,899 kg
Ballast
4,480 lb / 2,030 kg (Lead)

Rig and Sails

Type
Sloop
Reported Sail Area
553′² / 51.4 m²
Total Sail Area
553′² / 51.4 m²
Mainsail
Sail Area
248′² / 23.1 m²
P
40 5 / 12.3 m
E
12 2 / 3.7 m
Air Draft
?
Foresail
Sail Area
305′² / 28.3 m²
I
45 11 / 14 m
J
13 3 / 4 m
Forestay Length
47 10 / 14.6 m

Auxilary Power

Make
Yanmar
Model
3GM30
HP
?
Fuel Type
Diesel
Fuel Capacity
24 gal / 91 l
Engine Hours
?

Accomodations

Water Capacity
50 gal / 189 l
Holding Tank Capacity
?
Headroom
?
Cabins
2

Calculations

Hull Speed
8.0 kn
Classic: 7.03 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

7.96 knots
Classic formula: 7.03 knots
Sail Area/Displacement
18.1
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.
18.11
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
41.4
>40: stiffer, more 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

41.44
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
232.0
200-275: 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
232.01
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
22.5
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
22.45
<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
2.05
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Shoal draft: 4.50’.

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