Seller's Description
Nimble 20 Yawl Hull #2. Panacea for sale. The combination of highest quality build and materials with loving owner care results in a Pocket Yatch built in 1986 looking beautiful in 2020. New Mercury 5 hp 4 stroke ( less than 3 hours ), Two Optima batteries, Rule bilge pump, manual bilge pump, new glass and seals in all 5 bronze portlites, new pintles and gudgeons. Original cooler step, original unused PortaPotty, cabin and cockpit cushions. Two Danforth Anchors, solar cabin vent, led navigation and masthead lights. Safety netting, gin pole and remote electric winch, Bimini and Dodger, companionway bronze screen hatch board. Performance trailer with tongue extension, new wheels, rims, hubs, axel, springs, coupler, LED submergible trailer lights, and fenders.11 draft with the centerboard up. I am sure I corgot something, call me at 386-454-7617. North Central Florida. Bill
Equipment: Excellent Performance Trailer. 2019 5 HP 4 Stroke Mercury Outboard. Cockpit and cabin cushions. Cockpit motor / table. Two anchors. Vhf. All rigging.
Specs
- Designer
- Edward S. Brewer
- Builder
- Nimble Boats Works Inc.
- Associations
- ?
- # Built
- ?
- Hull
- Monohull
- Keel
- Stub + Centerboard
- Rudder
- ?
- Construction
- FG
Dimensions
- Length Overall
- 20′ 10″ / 6.4 m
- Waterline Length
- 65′ 7″ / 20 m
- Beam
- 26′ 2″ / 8 m
- Draft
- 0′ 11″ / 0.3 m — 3′ 3″ / 1 m
- Displacement
- 2,600 lb / 1,179 kg
- Ballast
- 600 lb / 272 kg (Lead)
Rig and Sails
- Type
- Ketch
- Reported Sail Area
- 207′² / 19.2 m²
- 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
- 1
Calculations
- Hull Speed
-
7.7 kn
Classic: 5.96 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
-
17.5
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
-
23.1
<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
- Displacement/Length
-
150.6
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
- Comfort Ratio
-
13.0
<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
-
2.3
>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
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