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Seller's Description

BEAUTIFUL FULLY LOADED NEWER MIGRATOR YAWL. READY TO GO! Check out Youtube video Block Island Yawl “Goose Bumps” for great interior & exterior walk-through. This is truly a pedigree modern classic built to the highest of yacht standards by a master New England shipwright as his personal yacht. This is an incredible offshore “Machine”. You will not be dissapointed!! If you are enchanted by fine vessels like Hinckley, Swans and Morris Yachts, you will really appreciate this boat. For further information contact Mike @ 1-561-313-5593 Please no emails or texts. Phone calls only - Thanks.

Equipment: HIGHLIGHTS Newer Lifeline AGM batteries (420AH) Newer Lewmar vertical windlass & solenoid. 60 pound Rocna spade anchor with Mantus 3/8 swivel Rigging replaced 2019/20 Newer Sails 2019/20 (Main, Mizzen, G1, G2, G3, Code O) Also mizzen staysail and spinnaker in a sock New improved heavy duty PYI shaft seal New 10ft West Marine soft Hypalon inflatable New 9.8 Mercury outboard New Hydrovane self-steering gear. This piece of equipment is absolutely incredible!! New Edson shaft brake with stainless wheel. Vessel can be tiller steered with a custom stainless tiller from under the dodger and also from an external tiller attached to the windvane controlled from the cockpit. 7” Garmin chart plotter (outside) and 12” 36-mile Garmin radar (at chart table) Vesper AIS reciever and transmitter New VHF handheld and Icom Command mic New heavy gauge acrylic Lewmar portholes and main companionway hatchboards Rebuilt Spectre 12VDC watermaker with spare low pressure pumps, new hoses and pressure gauge. 16gph. 180 watt solar cells with controller New Forespar foredeck/steaming light and stern light (mounted on Hydrovane) Forespar carbon fiber whisker pole (11 pounds) Forespar man overboard pole New weather cloths New fresh water pump with new spare plus Seagull water purification system with seperate spigot New salt water pump with new spare New spare Yanmar starter & alternator New spare Yanmar raw/fresh water pumps Rebuilt exterior VDO gauges Dual high output alternators (recently rebuilt) with new Balmar programmable external regulators Propane system upgraded with certified aluminum storage bottles and new solenoid valve Complete exterior varnish renewal with 8 coats Epifanes high gloss varnish Ray Marine depth, wind, speed instrumentation with new masthead wand. Ray Marine auto-pilot Newer Dometic 16KBTU air-conditioning unit with softstart New Plastimo man overboard ladder. Additional stainless steel ladder built into lifelines Four man Winslow liferaft Dual SeaFrost marine refrigeration units (12VDC and engine driven compressor) Espar diesel central heating system Crash/Watertight bulkhead forward and aft. Sail locker located foredeck. White cloth exterior boat cover with PVC supports

Specs

Designer
William H. Tripp Jr.
Builder
Migrator Yachts, Inc. (USA)
Associations
?
# Built
?
Hull
Monohull
Keel
Stub + Centerboard
Rudder
?
Construction
FG

Dimensions

Length Overall
39 11 / 12.2 m
Waterline Length
29 3 / 8.9 m
Beam
12 0 / 3.7 m
Draft
4 2 / 1.3 m 8 0 / 2.4 m
Displacement
20,000 lb / 9,072 kg
Ballast
7,800 lb / 3,538 kg (Lead)

Rig and Sails

Type
Yawl
Reported Sail Area
661′² / 61.4 m²
Total Sail Area
661′² / 61.4 m²
Mainsail
Sail Area
296′² / 27.5 m²
P
39 6 / 12 m
E
14 11 / 4.6 m
Air Draft
?
Foresail
Sail Area
365′² / 33.9 m²
I
46 9 / 14.3 m
J
15 7 / 4.8 m
Forestay Length
49 3 / 15 m
Mizzen
PY
20 6 / 6.3 m
EY
7 3 / 2.2 m

Auxilary Power

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

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
1

Calculations

Hull Speed
7.2 kn
Classic: 7.25 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

7.19 knots
Classic formula: 7.25 knots
Sail Area/Displacement
14.4
<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.

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.
14.35
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
39.0
<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

39.0
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
356.2
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
356.24
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
38.5
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
38.53
<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
1.62
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

The BLOCK ISLAND 40 was first introduced in 1957.
This particular ‘revival’ of the design began around 1984.
How many of this later version have been built is unknown.
Migrator Yachts, Inc.
72 Sandwich Rd.
Rte. 6
Wareham, MA 02571

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