Seller's Description
Manufacturer Provided Description
The Marlow-Hunter 31 follows the pedigree of the 40 and 37 which were also introduced by Marlow-Hunter in the last two years under the new leadership of owner David Marlow. Mr. Marlow, owner of Marlow Yachts, a luxury power yacht builder, has raised the bar by influencing quality and design of a brand that already had forty years of experience building sailboats.
The 31, which has a Length Overall of 324 and a beam of 1110 will be a tough contender for any model in her size range that tries to compete with the volume below. One of her best features is the spacious cockpit that will deliver a feel more like that of a larger boat. Performance will also be one of her strong features with a large sail plan and a Glenn Henderson hull design plus hard chine aft below the waterline which has become a signature for Marlow-Hunter sailboats built under David Marlow.
Below, her quality fit and finish is hand crafted using real teak furniture and floors, Corian countertops, ball bearing drawer hardware and name brand appliances and equipment. The construction of the hull and deck utilizes Vinyl Ester resins and gel-coats, continuous reinforcement fibers, Kevlar and state of the art Nida-coring for structural integrity for ours and our customers, peace of mind.
Equipment: ● 4’5” Shoal Draft ● Fold-down transom (Swim platform) ● Traveler on arch ● Refrigerator and Freezer ● Cockpit transom shower ● Stereo ● 32 Samsung smart TV with soundbar ● Smart plug shore power (30AMP) ● VHF radio ● VHF remote mic extension at helm ● Folding wheel ● Raymarine i50 speed/depth ● Wind instrument ● Raymarine Axiom chart plotter with internal GPS (Installed in 2021) ● Electric Windlass ● Lewmar swing pedestal ● DuraLeather upholstery ● Air conditioning with reverse cycle heat (Installed in 2021) ● High water bilge pump ● Instrument pod extension ● Bimini with window ● Dodger with covers with grab bars (Installed in 2021) ● Bimini-dodger connector ● Cockpit cushions ● Yanmar engine 30 HP with 378 hrs on it ● Safety equipment
Specs
- Designer
- Glenn Henderson
- Builder
- Hunter Marine
- Associations
- ?
- # Built
- ?
- Hull
- Monohull
- Keel
- Fin + Bulb
- Rudder
- Spade
- Construction
- FG
Dimensions
- Length Overall
- 31′ 11″ / 9.8 m
- Waterline Length
- 29′ 7″ / 9 m
- Beam
- 11′ 9″ / 3.6 m
- Draft
- 4′ 5″ / 1.4 m
- Displacement
- 11,850 lb / 5,377 kg
- Ballast
- 3,380 lb / 1,533 kg
Rig and Sails
- Type
- Fractional Sloop (B&R)
- Reported Sail Area
- 581′² / 54 m²
- Total Sail Area
- 267′² / 24.9 m²
Mainsail
- Sail Area
- 66′² / 6.2 m²
- P
- 3′ 7″ / 1.1 m
- E
- 36′ 5″ / 11.1 m
- Air Draft
- ?
Foresail
- Sail Area
- 201′² / 18.7 m²
- I
- 35′ 9″ / 10.9 m
- J
- 11′ 3″ / 3.4 m
- Forestay Length
- 37′ 6″ / 11.4 m
Spinnaker
- SPL/TPS
- 46′ 6″ / 14.2 m
- ISP
- ?
Auxilary Power
- Make
- ?
- Model
- ?
- HP
- 20
- Fuel Type
- Diesel
- Fuel Capacity
- 21 gal / 79 l
- Engine Hours
- ?
Accomodations
- Water Capacity
- 50 gal / 189 l
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- 2
Calculations
- Hull Speed
-
8.6 kn
Classic: 7.3 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
-
17.9
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
-
28.5
<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
-
202.9
200-275: moderate
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
-
22.2
20-30: coastal cruiser
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
-
2.1
>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
Draft – Shoal 4’5″ 1.35 m
Displacement – Shoal 12,000 lb 5,443.1 kg
Ballast – Shoal 3,525 lb 1,598.9 kg
Mast Height – Standard 46’6 3/4″ 14.19 m
Mast Height – Furling 51’11” 15.82 m
Sail Area – Furling 542 sq ft 50.4 sq m
P – Furling 40’11 3/4″ 12.49 m
E – Furling 14’7″ 4.45 m
Headroom 6’3″ 1.91 m
Holding Tank Capacity 20 gal 75.7 l
Water Heater 5 gal 18.9 l
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