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Seller's Description

Contact the owner at erniejtorres at gmail dot com with any questions…Primary Specs 2. HULL MATERIAL Fiber Reinforced Plastic (FRP) HULL TYPE Monohull Modified Fin Keel LENGTH OVERALL 41 BEAM 138 DRAFT 48 DEADRISE AFT N/A DISPLACEMENT 23,000 pounds dry weight BALLAST 8,500 pounds PROPULSION SYSTEM Single Yanmar 4JHBE 44-horsepower inboard engine ENGINE RUN HOURS 1,680 run hours FUEL TYPE Diesel FUEL CAPACITY 85 gallons (single aluminum fuel tank) FRESH WATER CAPACITY 215 gallons (two plastic water tanks) HOLDING TANK CAPACITY N/A AC ELECTRICAL POWER 30A 125V Shorepower MARINE GENERATOR MAKE & MODEL Single 5.5 kW Next-Gen generator (Needs Repair) MARINE GENERATOR RUN HOURS 220 run hours DC ELECTRICAL POWER Three 6V DC Duracell Ultra Golf Cart Batteries Aesthetics 3. (Youtube link pending) Secondary Specs 4. (Youtube link pending) Repairs 5. AC - needs new water pump Two leaks pending repair (bow-starboard stanchion 30min repair and seal between aft hatch 5hr repair) I want to replace the mic for the radio because people can’t hear me when it’s raining. (More or a swap) Generator reservoir needs to be replaced or flushed. I don’t use a lot of power but I want to change the lead-based batteries to lithium. As I think of upgrades or changes that need to be made, I’ll update this list.

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Specs

Designers
?
Builder
Catalina Yachts
Associations
?
# Built
?
Hull
Monohull
Keel
Wing
Rudder
?
Construction
FG

Dimensions

Length Overall
50 5 / 15.4 m
Waterline Length
134 6 / 41 m
Beam
42 7 / 13 m
Draft
13 1 / 4 m
Displacement
36,000 lb / 16,329 kg
Ballast
13,250 lb / 6,010 kg

Rig and Sails

Type
Sloop
Reported Sail Area
1,108′² / 102.9 m²
Total Sail Area
1,108′² / 102.9 m²
Mainsail
Sail Area
498′² / 46.3 m²
P
53 10 / 16.4 m
E
18 6 / 5.6 m
Air Draft
?
Foresail
Sail Area
610′² / 56.7 m²
I
59 6 / 18.1 m
J
20 6 / 6.3 m
Forestay Length
62 11 / 19.2 m

Auxilary Power

Make
?
Model
?
HP
75
Fuel Type
Diesel
Fuel Capacity
?
Engine Hours
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
10.8 kn
Classic: 8.91 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

10.83 knots
Classic formula: 8.91 knots
Sail Area/Displacement
16.3
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.
16.26
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
36.8
<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

36.81
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
185.4
100-200: light

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
185.38
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
33.2
30-40: moderate bluewater cruising boat

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
33.19
<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
1.8
<2.0: better suited for ocean passages

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
1.79
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Also called CATALINA-MORGAN 50 and built primarily for the charter trade.
Deep keel: 8.0’/2.44m.
Tall Rig:
I: 69.50’
J: 20.50’
P: 63.83’
E: 18.50’

This listing is presented by SailboatListings.com. Visit their website for more information or to contact the seller.

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