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Seller's Description

Savannah is a sailor of the sea, and has taken numerous trips to the Bahamas and back. She is also fun to sail, on a sunny day, in the Cape Fear River. Savannah is a well cared for boat, with simple systems and all lines leading to the cockpit, meaning shes easier to maintain and easy to sail. Prior to our purchasing Savannah in 2020, the previous owner did a refit on her that included an engine overhaul and replacement of the mast, boom, and sails. Savannahs chartplotter is loaded with USA and Bahama charts, and shes ready for another trip. Shes not a project boat, she has been continuously sailed and cared for by those of us who have shared time with her.

Year built- 1979 (solid fiberglass hull) Length- 30ft. Draft- 4.3ft (shes the centerboard version). Beam- 10.17ft. Steerage- Tiller

All pics were taken Mar. 23, except for the two at anchor which were taken Jan. 22.

Equipment: Galley: Two burner propane stove. Well insulated refrigerator compartment. Stainless steel sink. Pressurized water faucet.

Electrical: DC system- Two 100 watt Renogy solar panels (mounted on top of dinghy davits). Charge controller. Two marine 12v house batteries. The solar power system can handle all of the boats power needs. One marine starter battery. AC system- 30 amps. Power cord to connect to shore power. 110v sockets forward and aft.

Electronics: Garmin Chartplotter with USA and Bahama maps. (direction, speed, depth, water temp) Stereo w/ bluetooth. Two speakers in the cabin, two outdoor speakers fastened to the underside of solar panels aft of the cockpit. Standard Horizon Marine Radio with AIS (receiver) Raymarine St2000 auto tiller pilot.

Sailing and Rigging: 155% Genoa on roller furler. Newer sail, not original to boat. Mainsail with two reef points (slab reefing). Newer sail, not original to boat. Asymmetrical spinnaker, in sock. Good shape, not sure of the age. Two Lewmar 2-speed self tailing winches (primaries) Two Lewmar winches (one on each side of hatch) All lines lead to the cockpit. Selden mast and boom. Newer and not original to the boat.

Engine: Yanmar 3GM30F. Manufactured in the 1990s. The previous owner took the engine from his grandfathers boat and overhauled it before installing it on Savannah. Racor fuel filter. She runs great and sips fuel. Very reliable.

Anchor and tackle: Anchor roller, holding two anchors. Vulcan 15 (33 lbs) anchor (oversized for the boat). 72ft of chain followed by 150 ft of half inch double strand (chain and rope are both newer and in good condition). Danforth style anchor, secondary. (I think its 22lbs.) Approx 50ft of chain followed by unknown length of double strand. Very small Danforth style anchor which I use for a dinghy anchor.

Tankage: 20 gal. fuel tank (newer, not original to the boat) 40 gal. water tank 10 gal. holding tank (never, not original to the boat)

Head: Jabsco manual marine toilet. Head area also has a small sink with pressured facet.

Dinghy and outboard: 10 ft. 2005 Zodiac 310. Inflatable with hard bottom. Not pretty but works. Older Mercury 3.3. Hp outboard. 2-stroke. Despite being 20 yrs old it starts every time and, besides having to change the spark plug and fuel cock valve, hasnt given me any trouble. Foot pump and oars.

Other: Dinghy davits. Spinnaker pole. Mounted compass in cockpit. Electrical and manual bilge pumps. Propane grill. Standing rigging is newer, not original to boat.

She comes with miscellaneous spares (oil filters, fuel filters, outboard spark plugs and 2-stroke oil, raw water pump rebuild kit..etc)

Recent projects: Oil and filter change, replaced dripping raw water pump shaft seal, replaced chafed second reef line, painted her decks.

Issues: The centerboard is not currently operable. I dont know why but a section on the port side of the board rubs against the housing, which prevents it from dropping on its own. However, it hasnt prevented me from accomplishing any of my sailing goals. I tried checking it when it was on the hard a couple years ago, and the boatyard was only willing to let me hang suspended high in the straps for so long, so I wasnt able to pursue the fix.

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Specs

Designer
Ted Irwin
Builder
Irwin Yachts
Association
Irwin Yacht Owners
# Built
?
Hull
Monohull
Keel
Fin
Rudder
Skeg
Construction
FG

Dimensions

Length Overall
29 11 / 9.1 m
Waterline Length
26 11 / 8.2 m
Beam
10 2 / 3.1 m
Draft
4 3 / 1.3 m
Displacement
9,200 lb / 4,173 kg
Ballast
4,100 lb / 1,860 kg

Rig and Sails

Type
Sloop
Reported Sail Area
474′² / 44 m²
Total Sail Area
474′² / 44 m²
Mainsail
Sail Area
192′² / 17.9 m²
P
35 0 / 10.7 m
E
10 11 / 3.4 m
Air Draft
45 6 / 13.9 m
Foresail
Sail Area
281′² / 26.1 m²
I
41 8 / 12.7 m
J
13 5 / 4.1 m
Forestay Length
43 9 / 13.4 m

Auxilary Power

Make
?
Model
?
HP
?
Fuel Type
?
Fuel Capacity
?
Engine Hours
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
8.1 kn
Classic: 6.95 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

8.13 knots
Classic formula: 6.95 knots
Sail Area/Displacement
17.3
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.
17.28
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
44.6
>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.

Formula

Ballast / Displacement * 100

44.57
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
210.2
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
210.16
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
23.1
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
23.08
<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
1.9
<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
1.94
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Shoal draft version: 3.92’.
Keel/CB draft: BU:4.3’ BD: 8.3’

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