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Seller's Description

Beautiful Classic Plastic. Hull #2 of 6. Current owners (3rd) can’t keep her up anymore. She is sound but needs paint top and bottom. Engine & electronics run. She is full of tools and spares and there are more to be had stored in our apartment ashore. She was built before they knew how strong fiberglass was with a thick solid glass hull and external lead ballast. She is made to go places: sistership crossed Pacific twice. This boat made it through the Panama Canal. Email me for more pictures and info I have on a Google Drive page. (You need the link to access it.)

Equipment: Lighthouse electric windlass, AlphaSpectre below deck autopilot, Raytheon radar & VHF; Datamarine electronics, 5 batteries (windlass batty dead.) True-charge/Statpower battery charger for all 3 banks. Main anchor 55 lb Delta w 100’ 3/8 chain, 4 more anchors (and chain and rode.) Lazarette has chain/rode locker for stern hook. Plastimo roller furling & 3 sails. - Harken backstay adjuster. Windbugger. Barient winches. Richie compass. Engine sips 3 qts. an hour. Racor in place and spare. With full price you get the Yahmama 15 hp. 2 cycle outboard with 50 hours. Huge mast to arch awning/raincatcher. Asst. smaller awnings. Tucked away is screening material that covers the whole cockpit. Windscoop and multiple fans. Small Kerosun heater available. 3 burner propane stove w oven/broiler, 2 20lb. aluminum tanks. Manual footpumps for the 75 gal. baffled watertanks in bilge. Manuals, tools, and spare parts galore.

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Specs

Designers
Robert B. Harris
MacLear & Harris
Builder
Allied Boat Company Inc.
Associations
?
# Built
?
Hull
Monohull
Keel
Fin
Rudder
Skeg
Construction
FG

Dimensions

Length Overall
39 1 / 11.9 m
Waterline Length
28 10 / 8.8 m
Beam
10 5 / 3.2 m
Draft
6 0 / 1.8 m
Displacement
17,000 lb / 7,711 kg
Ballast
6,700 lb / 3,039 kg

Rig and Sails

Type
Sloop
Reported Sail Area
680′² / 63.2 m²
Total Sail Area
681′² / 63.2 m²
Mainsail
Sail Area
326′² / 30.2 m²
P
38 3 / 11.7 m
E
16 11 / 5.2 m
Air Draft
?
Foresail
Sail Area
355′² / 33 m²
I
45 9 / 14 m
J
15 5 / 4.7 m
Forestay Length
48 4 / 14.7 m

Auxilary Power

Make
?
Model
?
HP
?
Fuel Type
?
Fuel Capacity
30 gal / 114 l
Engine Hours
?

Accomodations

Water Capacity
100 gal / 379 l
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
7.4 kn
Classic: 7.2 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

7.4 knots
Classic formula: 7.2 knots
Sail Area/Displacement
16.5
16-20: good 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.
16.46
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
39.4
<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

39.41
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
316.4
275-350: heavy

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
316.43
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
35.4
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.

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
35.43
<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
1.6
<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
1.63
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Derived from the wooden OWENS CUTTER, 6 boats of this design were first built in fiberglass and sold as the BORSAW 40. The mold was then sold to Allied Boat Company. With a few changes it became the ALLIED 39. The traditional transom was changed to a reverse transom, the underbody was redesigned by Robert Harris to a more modern fin keel, and slightly more beam.
Available as a Sloop or Yawl.

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