Seller's Description
2007 Farr 11
The Farr 11s has a 45-degree canting keel, twin asymmetric canards and twin retractable rudders on a hull with high form stability. The hull shape combines the demands for minimizing light air (low speed) drag with high-speed stability and excellent handling qualities. Twin rudders will help control in extreme conditions.
The rig is a transplant from skiff rig development with a large square-headed main on a highly swept spreader, no backstay rig. The retractable bowsprit stretches the sail plan to allow ample downwind sail area in the form of asymmetric spinnakers.
Construction is carbon skin honeycomb core sandwich, with carbon keel fin, and an all up weight of 8700 lbs. The keel is activated by a hydraulic ram/electric pump system.
The boat is built by Premier Composite Technologies in Dubai.
The question is, do you want to do 20 + kts?
- LOA 36’7″
- Beam 11’25”
- Weight 8,700 LB
- Draft 8’6″
- Composite
- 15HP OB Motor
- Keel – Canting w/Deep Canards
- Road Trailer – needs work
- Electronics – Depth, Speed, Wind, Compass, VHF
- Sails – Main, Storm jib, Genoa, Asymmetrical spinnaker (all sails are older)
- Faired bottom (2016), spar clear coated (2016)
- Electrical – 24v system for keel and hydraulic pump, 12v system for navigation
- Interior optimized for overnight – point to point races
Specs
- Designer
- Bruce Farr
- Builder
- Premier Composite Technologies
- Associations
- ?
- # Built
- ?
- Hull
- Monohull
- Keel
- ?
- Rudder
- ?
- Construction
- FG
Dimensions
- Length Overall
- 36′ 8″ / 11.2 m
- Waterline Length
- 32′ 9″ / 10 m
- Beam
- 11′ 3″ / 3.4 m
- Draft
- 8′ 10″ / 2.7 m
- Displacement
- 5,300 lb / 2,404 kg
- Ballast
- 2,400 lb / 1,089 kg (Lead)
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 719′² / 66.8 m²
- Total Sail Area
- 719′² / 66.8 m²
Mainsail
- Sail Area
- 468′² / 43.5 m²
- P
- 49′ 11″ / 15.2 m
- E
- 18′ 8″ / 5.7 m
- Air Draft
- ?
Foresail
- Sail Area
- 251′² / 23.4 m²
- I
- 43′ 1″ / 13.2 m
- J
- 11′ 7″ / 3.6 m
- Forestay Length
- 44′ 8″ / 13.6 m
Spinnaker
- SPL/TPS
- 20′ 9″ / 6.3 m
- ISP
- 54′ 10″ / 16.7 m
Auxilary Power
- Make
- Yamaha
- Model
- ?
- HP
- 15
- Fuel Type
- Obrd. Retract.
- Fuel Capacity
- 10 gal / 38 l
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- ?
Calculations
- Hull Speed
-
12.8 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
- Sail Area/Displacement
-
37.9
>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.
- Ballast/Displacement
-
45.3
>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
- Displacement/Length
-
67.0
<100: Ultralight
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
- Comfort Ratio
-
9.5
<20: lightweight racing 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
- Capsize Screening
-
2.6
>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
Notes
Canting keel:
RM @ 1 Degree 2,500 Kg-m
RM @ 20 Degrees 4,000 Kg-m
Upwind Sail Area/Displ: 44
Downwind Sail Area/Displ: 102
Projected IRC Rating
* TCC: 1.285 *
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