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2076 Allied Boat Company Mistress Mk III


Seller's Description

Allied Mistress 39’ aft cockpit cruising sailboat.

Cruise ready for SHTF and loaded

Equipment: Beta Marine 50 hp engine - less than 50 hours new shaft and prop NextGen 3.5 Kw genset w/ sound shield - less than 50 hours Raymarine Autopilot with DC heavy duty servo/chain drive on Edson steering gear Groco electric head Adler Barbour 12v Refrigeration 9.5 CuFt reefer box w/Teak grates & 12v circ. fan Adler Barbour 12v Freezer- 4 CuFt freezer box & 12v circ. fan Dometic 16k BTU central air conditioner Water heater dual engine exchanger/120vAC Enclosed shower sump 7 deep cycle marine AGM batteries over 1000 Ah total Ray Marine GPS chart plotter/Radar navigation system Signet marine instruments Depth, hull speed, wind speed, wind direction High pressure saltwater anchor wash-down system Princesss Gourmet II 3 burner stove with oven LPG LPG system with safety solenoid and Multi-connection manifold for grill, stove &2 tanks Dual wiring system 120 vAC / 12 vDC lights (LED) and outlets 2 x 2500w inverters; one conn. directly to batteries, one conn. via source select switch 4-pos 120vAC Source selector switch; Shore/Genset/Inverter/Off Aerogen 400 wind generator Mizzen mounted Mizzen mounted TV antenna TV (flat screen) in entertainment center/liquor cabinet with fold-up table cover Custom Fold-up salon table for more room underwaynder v-berth in forward cabin Hideaway ironing board u Foot pumps for fresh and salt water 12 dinghy with 9.9/15 Johnson OB and engine lifting sling Dinghy Davits with dinghy multi-purchase lifting system Manual anchor winch 35# CQR with 50 chain & 300 58 rode 2 x 25# Danforth anchors 1 on bow w/25 chain and 300 5/8 rode on anchor winch, one aft w/25 chain and 300 5/8 rode for safety Sails are in condition of 4 on a scale of 5 Sails: Main, Mizzen, Roller furler storm jib, 50% jib, 125% jib New masthead navigation lights and spreader lights Boat re-rigged 2016, sails cleaned and reconditioned 2016 (seldom used) New cushions and covers (sunbrella) 2018 Bimini top in good condition Engines serviced 2021 Complete OEM spares for Main Engine and Genset New cockpit cushions 2018 Boat shade cover with built-in water catchments system Folding bicycle never used Boat refitted with new, oversized SS water and diesel tanks Document printer with computer USB connection Bose speaker system for TV/music source Complete set of PFDs with spare CO2 cartridges Full set of life preservers VHF radio on board and VHF handheld radio Complete set of fire extinguishers Extensive paper charts and chart packs



Arthur Edmunds
Allied Boat Company Inc.
# Built


Length Overall
39 0 / 11.9 m
Waterline Length
29 9 / 9.1 m
12 6 / 3.8 m
4 5 / 1.4 m
20,800 lb / 9,435 kg
7,900 lb / 3,583 kg (Lead internal)

Rig and Sails

Reported Sail Area
700′² / 65 m²
Total Sail Area
607′² / 56.4 m²
Sail Area
283′² / 26.3 m²
39 0 / 11.9 m
14 6 / 4.4 m
Air Draft
Sail Area
325′² / 30.2 m²
43 11 / 13.4 m
14 9 / 4.5 m
Forestay Length
46 4 / 14.1 m
22 11 / 7 m
8 5 / 2.6 m

Auxilary Power

Fuel Type
Fuel Capacity
140 gal / 530 l
Engine Hours


Water Capacity
100 gal / 379 l
Holding Tank Capacity


Hull Speed
7.3 kn
Classic: 7.31 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.


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

7.28 knots
Classic formula: 7.31 knots
Sail Area/Displacement
<16: under powered

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.


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
<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.


Ballast / Displacement * 100

<40: less stiff, less powerful
>40: stiffer, more powerful
>350: ultraheavy

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.


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
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.


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
<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.


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


Aft cockpit version of the MISTRESS 39 (ALLIED) with a clipper bow and other differences was introduced in 1975. (At this time the builders name was changed from Allied Boat Co. to the Wright Boat Co.) A rare version of this design with an extended stern was called the WRIGHT 40.

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