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Seller's Description

Corby 33

Race ready 2008 Corby 33 for sale, non-overlapping headsails and a large cockpit with ergonomic layout make her a joy to race and sail. Boat has been well maintained and has been updated with a new Trogear carbon fiber bowsprit for ease of sail handling.

Specifications

•Length: 32’ 10” •Beam: 9′ 8” •Draft: 7′ 3”

Accommodations

While the emphasis is on being a thoroughbred racer, she is nicely appointed down below for short family cruises or casual weekending.

•Sleeps 5 (not including 2 removable pipe berths) •Head, galley to starboard •Teak & holly cabin sole •Molded foam-core GRP interior •Portlights/Lewmar professionally installed 2012

Sails

Mains – •Sobstad Carbon 2018 •UK Carbon 2012 •North 3dl

Spinnakers – •UK 2S 2012 •North 1A •Ullman 3A 2019 •North 4A •Sobstad Code 0 2017 Jibs – •Ullman Carbon Light 2017 •Ullman Carbon Heavy 2016 •UK Carbon Medium 2016 •Quantum Carbon 2020 •Various additional

Electronics

•Raymarine Autohelm •Raymarine GPS •Standard Horizon VHF radio •Raymarine / TackTick Speed, log, depth, wind; mast-mounted Maxi displays w/remote

Galley

•Fresh-water foot pump/double s/s sinks •Manual cold-water system •Top-loading ice box •2-Burner gimbaled alcohol stove

Electrical

•2 Batteries (100 amp hrs. total, 2018 & 2019) •BEP circuit breaker panel •Cabin lights •Navigation lights

Hull And Deck

•Fiberglass hull & decks •Light & ventilation provided by hatch, opening port •Casted SG iron fin keel w/lead torpedo bulb •Carbon fiber rudder •Bow & stern pulpits •Double lifelines

Rigging

•Fractional rig; anodized aluminum keel stepped mast •Harken Carbo Foil Headstay (new 2018) •Dyform standing rigging •Solid boomvang •Sailtec hydraulic backstay (rebuilt 2021) •Trogear carbon fiber bowsprit and rigging (new 2021) •4 Harken winches (resurfaced by Harken 2018) •3 Locking winch handles

Mechanical

•Yanmar 3YM20SD 20 HP diesel inboard •Yanmar SD20 sail drive •8 gallon fuel tank •Water temp alarm •Gori 2-Blade folding prop (new 2019) •Manual Jabsco head with holding tank

Other

•2 mainsail covers •Danforth anchor •100’ ½” rode •Life Sling Rescue System •10 life jackets •Flares •2 fire extinguishers •Dock lines/fenders •EPIRB (renewed 2019) •Automatic and manual bilge pumps

•2020 Marine Survey, additional information and photos available

Email: telemaques@sbcglobal.net

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Specs

Designer
John Corby
Builders
?
Associations
?
# Built
?
Hull
Monohull
Keel
Fin + Bulb
Rudder
Spade
Construction
FG

Dimensions

Length Overall
32 9 / 10 m
Waterline Length
32 9 / 10 m
Beam
9 8 / 3 m
Draft
7 2 / 2.2 m
Displacement
9,370 lb / 4,250 kg
Ballast
4,410 lb / 2,000 kg (Lead)

Rig and Sails

Type
Sloop
Reported Sail Area
635′² / 59 m²
Total Sail Area
635′² / 59 m²
Mainsail
Sail Area
329′² / 30.6 m²
P
43 7 / 13.3 m
E
15 1 / 4.6 m
Air Draft
?
Foresail
Sail Area
306′² / 28.4 m²
I
45 11 / 14 m
J
13 3 / 4.1 m
Forestay Length
47 10 / 14.6 m

Auxilary Power

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

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
10.7 kn
Classic: 7.68 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

10.72 knots
Classic formula: 7.68 knots
Sail Area/Displacement
22.9
>20: high 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.
22.86
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
47.1
>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

47.06
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
118.5
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
118.45
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
21.3
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
21.32
<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
1.84
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Main sail: 35,4m2
Jib: 30m2
Spinnaker: 92m2
At least 15 have been built in Poland.
An earlier CORBY 33 was built in the UK.

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

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