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1981 Hunter 27 Cherubini

Indianapolis, Indiana, United States
$12,000 USD
Condition: Good

Hunter with Trailer 1981 Hunter 27 -Cherubini design Solid and reliable wheel steering with Doyle Main, 110 Jibe (plus spare Jibe) and spinnaker all in great shape. Auto furling foresail, lazy jacks with sail cover and wheel cover. Lots of time and upgrades. She has Auto pilot and 2 (redundant) chart plotters, 8 Duracell, 6-volt batteries wired for 12v, 2 sets (redundant) for house power. A separate high cranking 12V for the engine (new 2019). She has 160-watt solar panel and Rogu solar management, Blue Sea Systems State of Charge, Blue Sea Shore Power, Inverter selection and 200 Watt Inverter to run the 2nd refrigerator or the microwave. It has redundant (2) Sterling Power (Pro Charge Ultras) that charges the house batteries in 24 hours completely hands free. It has a new 2005 Yanmar 10HP diesel that is very reliable and easy to service (change oil) or winterize. It has a dripless shaft seal. The boat is dry below the water line and above (all windows hatches completely dry). All electronics work. Two water pumps one for the two sinks and a second for the anchor locker hose for easy clean up after bringing in the anchor. Two bilge pumps, JVC stereo with 4 speakers all new (2 in cockpit, 2 in cabin), multiple accessory ports to charge cell phones, multiple shore power plugs. It has a Standard Horizon ship to shore radio. V birth in bow and cabin port and starboard Settees convert into a queen size bed (sleeps 4 comfortably). 2 refrigerators one works on house 12V (needs freon recharged but works) and one works from shore or house/inverter. It has a 4 burner Propane stove. Force 40 Anchor with 10 of chain and 100 of marked anchor line (every 10). All standing rigging checked and in great shape. Upgraded main sheet traveler, very easy to handle single handed, all lines lead to the cockpit. All cushions including cockpit cushion in great shape (no burns, cuts or stains). Trailer and cradle included.

Equipment: Trailer Cradle

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John Cherubini
Hunter Marine
# Built


Length Overall
27 0 / 8.2 m
Waterline Length
22 0 / 6.7 m
9 3 / 2.8 m
4 3 / 1.3 m
7,000 lb / 3,175 kg
3,000 lb / 1,361 kg

Rig and Sails

Reported Sail Area
343′² / 31.9 m²
Total Sail Area
343′² / 31.9 m²
Sail Area
145′² / 13.5 m²
29 0 / 8.8 m
10 0 / 3.1 m
Air Draft
Sail Area
198′² / 18.4 m²
34 6 / 10.5 m
11 6 / 3.5 m
Forestay Length
36 4 / 11.1 m

Auxilary Power

Fuel Type
Fuel Capacity
12 gal / 45 l
Engine Hours


Water Capacity
35 gal / 132 l
Holding Tank Capacity


Hull Speed
6.6 kn
Classic: 6.29 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

6.63 knots
Classic formula: 6.29 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: 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.


Ballast / Displacement * 100

<40: less stiff, less powerful
>40: stiffer, more powerful
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.


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
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.


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


Shoal draft/wing keel: 3.25’, Disp. 7200 lbs.
Later boats were available with Yanmar diesel.

Tall Rig:
I: 37.50’/11.43m
J: 11.30’/3.44m
P: 32.30’/9.85m
E: 9.30’/2.83m
Total (100%): 362 ft2/33.63m2



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