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2005 Corsair F-31 1D CFoil

Listed
$135,000 USD

Seller's Description

Condor is a USA built 2005 Corsair F31-1D with C-Foils.

“Condor” is one of only five ever built to the factory 1D specifications and is the sole model equipped with C-Foils.

Condor is turn-key and ready for immediate use. There are no projects pending.

“Condor” has a dedicated website with video walkthroughs, images and complete spec/gear list: f31-1d.com

Contact me via: https://f31-1d.com/

Equipment: Mainsail : 433 sqft / 40 m2 Ullman Carbon Laminate (2022)

Condition: Fair. Estimated 2 Seasons left. First signs of wear. Zero stretch

Jib #1: 230 sqft / 21 m2 Smyth GPL Liteskin (2024)

Condition: New. Unused.

Jib #2: 200 sqft / 18.5 m2 Smyth Technora2 (2019)

Condition: Good. Estimated 3-4 Seasons left. Minimal wear

Jib #2.2: 198 sqft / 17.5m2 Ullman Carbon Laminate (unko)

Condition: Practice sail only. Noticeable wear.

Screecher: 488 sqft / 45 m2 Smyth Aramid Hybrid (2019)

Condition: Good. Estimated 2-3 Seasons left. Light wear.

Reacher: 780 sqft / 72.5 m2 Ullman Nylon (unknown)

Condition: Very Good. Minimal use.

Spinnaker: 1050 sqft / 97 m2 Ullman Nylon & ATN (2019/2021)

Condition: Good to Fair. Some wear on tack.

Note: Spinnaker uses ATN Sock, optional bag launch.

Note: Screecher uses Harken Continuous Furler w/ 2:1 Halyard

2005 Pacific Dual Axle Trailer Galvanized w/ Disc Brakes

Motor: Torqeedo Cruise 4TL (4000 Watts max, 48V, 8HP, 19kg, 42lbs ) (August 2021)

Batteries: Torqueedo 2x 24-3500 (Total: 7000 Watts, 48V, 280AH, 50kg, 110lbs) (August 2021)

Battery Charger: Torqueedo 24-3500 2x (August 2021)

Backup Motor: Hankai 1KW 4HP (August 2021)

DC-DC Converter: Victron 48/12-Volt (August 2021)

VHF/AIS: B&G V60-B (August 2021)

GPS Antenna: B&G 500 (August 2021)

VHF Antenna: B&G Navico 1720 (August 2021)

Antenna Splitter: B&G NSPL-500 (August 2021)

Handheld VHF: Standard Horizon HX300

Chartplotter: Raymarine Hybrid Touch E Series

Data Repeater Displays: 4x ST60 Displays 1x i40

TackTick: Raymarine Race Master

Depth Sounder: Airmar P79 (In-Hull)

Backup Depth Sounder: Raymarine Triducer F/ST40 (not installed)

Autopilot: Raymarine Tillerpilot 2000 (August 2021)

Compass: Nautos Contest 101 (August 2021)

Anchor: Fortress FX 11 & Chain: 20ft 1/4 chain

Safety

Epirb: Global Fix V4 (2019)

MOB: Ocean Signal MOB (August 2021)

Lifevest: 2x Spinlock Vito Deck Vest (August 2021)

Safety Tethers various (2021 & 2022)

Jacklines West Marine (2021)

Throwable: Lifesling 2 (2019)

LED Running Lights (2021)

Fire Extinguisher (2019)

Smoke Flares, Flare Gun Aerial, LED Strobe (2021 & 2024)

For complete gear list and for contact visit : f31-1d.com

Specs

Designers
?
Builders
?
Associations
?
# Built
?
Hull
Trimaran
Keel
?
Rudder
?
Construction
?

Dimensions

Length Overall
31′ 0″ / 9.5 m
Waterline Length
?
Beam
22′ 6″ / 6.9 m
Draft
5′ 7″ / 1.7 m
Displacement
?
Ballast
?

Rig and Sails

Type
?
Reported Sail Area
?
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Air Draft
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

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

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
?

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

?
Classic formula: ?
Sail Area/Displacement
?

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: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
?

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

?
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
?

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
?
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
?

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
?
<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
?

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

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