Seller's Description
Our lovely Tartan27-II (1978) needs a good home. We spent $23,000 re-powering; $3,400 in new tires, bearings and electrics on trailer; $2,000 on new bottom paint; $1,200 on new forward hatch; etc, etc. A new trailer costs $14,000. Fresh water boat; keel centerboard Draft 3-2/6-4. Featured in Good Old Boat Issue 120 May/June 2018 Loadmaster Trailer: serviced Sept. 2022; new electric brakes, new tires 2014 Volvo-Penta diesel,18hp w/3bladed prop.191hrs Solent rig, (optional staysail rig) with running rigging to the cockpit. Garmin NMEA 2000 GWS 10 wind vane/instrument/740S Chart plotter on custom swivel arm. Anchor bow sprit, Lewmar windlass, washdown/sink pump, and teak swim platform and ladder. New (2006) fuel tank, (2014) holding tank w/gauge, two burner propane stove top, cabin windows. New (2015) windlass, washdown pump. New (2017) hatch cover plexiglass. New (2022) head, water bladder. New (2023) VC17bottom paint.
Equipment: (2013) 170 Genoa, jib, and staysail sails and Harken roller furling. Mainsail, single reef back to the cockpit with 4 new (2013) Lewmar tailless winches and line clutches. Whisker pole, 4 anchors; 15k Bruce (50ft chain/150ft? rope), 10k Bruce, 10k Rancor, 7.5K Bruce (15ft chain/125ft rope), VHF, Garmin 740 chart plotter w/ Lake Huron and Midwest maps, GWS 10 wind vang and speed, depth. 2 burner propane stove, vented propane locker, new (2013) plexy windows/frames, and (2017) front hatch and hatch cover plexiglass. Full cockpit screen/awning. Cockpit teak grate. Spare GWS 10 wind/speed vang/instrument. New (2013) interior and exterior cushions. Dock lines, extra lines, fenders, and more. Custom winter boat cover.
Specs
- Designer
- Sparkman & Stephens
- Builder
- Tartan Yachts
- Associations
- ?
- # Built
- 64
- Hull
- Monohull
- Keel
- Stub + Centerboard
- Rudder
- ?
- Construction
- FG
Dimensions
- Length Overall
- 27′ 0″ / 8.2 m
- Waterline Length
- 21′ 5″ / 6.5 m
- Beam
- 8′ 0″ / 2.4 m
- Draft
- 3′ 2″ / 1 m — 6′ 11″ / 2.1 m
- Displacement
- 7,400 lb / 3,357 kg
- Ballast
- 2,400 lb / 1,089 kg
Rig and Sails
- Type
- Yawl
- Reported Sail Area
- 413′² / 38.4 m²
- Total Sail Area
- 376′² / 35 m²
Mainsail
- Sail Area
- 206′² / 19.1 m²
- P
- 30′ 6″ / 9.3 m
- E
- 13′ 5″ / 4.1 m
- Air Draft
- ?
Foresail
- Sail Area
- 170′² / 15.8 m²
- I
- 34′ 7″ / 10.6 m
- J
- 9′ 10″ / 3 m
- Forestay Length
- 36′ 0″ / 11 m
Mizzen
- PY
- 12′ 11″ / 4 m
- EY
- 5′ 8″ / 1.7 m
Auxilary Power
- Make
- Universal
- Model
- Atomic 4
- HP
- ?
- Fuel Type
- Gas
- Fuel Capacity
- 20 gal / 76 l
- Engine Hours
- ?
Accomodations
- Water Capacity
- 30 gal / 114 l
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- 2
Calculations
- Hull Speed
-
6.3 kn
Classic: 6.2 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
- Sail Area/Displacement
-
17.4
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
-
32.4
<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
- Displacement/Length
-
336.0
300-400: 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
- Comfort Ratio
-
27.9
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
-
1.8
<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
Notes
Later version of the orginal TARTAN 27. Most notable differences from original: Raised sheer line, leveled out coach roof. Other modifications to interior.
As before, a yawl rig and inboard engine (Atomic 4) were available as options.
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