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Seller's Description

Purchased by current owner from original owner in 1998

Maintained for approximately the past 15 years by Robinhood Marine Center (now Derecktor Robinhood), Georgetown, Maine. Currently located at Lyman-Morse Boatbuilding in Thomaston, Maine.

New Bowsprit and Spartan anchor mount hardware installed by Robinhood Marine in 2022. Anchor customized for hardware.

New interior cushions in 2022.

Repowered in 2019 by Robinhood Marine with BetaMarine 16 HP diesel engine with ZF15MIV transmission and V-Drive.

Also new in 2019, propeller, shaft, PSS, through-hull and hoses for cooling water intake, engine bed, under-deck support post for cockpit, mounts for four group 29 batteries installed (two starboard, two port to balance weight), battery cabling and isolator switch.

Also new in 2019, two burner Dometic non-pressurized alcohol stove on gimballed cabinet.

Running rigging, standing rigging and lifelines replaced in 2000. Standing rigging has Norseman/Sta-Lok type fittings.

New sails 1999. Sails specd for offshore sailing conditions. Negative roach mainsail with three reef points. One reef point in staysail.

Equipment: Delta plow anchor with 100 chain backed by 3-strand line Icom fixed-mount VHF with integrated GPS Furuno 16-mile radar with LCD Cape Horn self-steering Lavac marine vacuum-flush toilet with electric pump and timer switch Built-in 12-volt refrigeration Mahogany Eastport Nesting Pram

Specs

Designer
John Brandlmayr
Builder
Spencer Boats Ltd.
Association
Spencer Yachts Owners Group
# Built
64
Hull
Monohull
Keel
Long
Rudder
?
Construction
FG

Dimensions

Length Overall
29 11 / 9.1 m
Waterline Length
25 0 / 7.6 m
Beam
8 11 / 2.7 m
Draft
4 0 / 1.2 m
Displacement
12,000 lb / 5,443 kg
Ballast
4,200 lb / 1,905 kg

Rig and Sails

Type
Sloop
Reported Sail Area
535′² / 49.7 m²
Total Sail Area
535′² / 49.7 m²
Mainsail
Sail Area
280′² / 26 m²
P
35 0 / 10.7 m
E
16 0 / 4.9 m
Air Draft
?
Foresail
Sail Area
255′² / 23.7 m²
I
38 5 / 11.7 m
J
13 3 / 4 m
Forestay Length
40 8 / 12.4 m

Auxilary Power

Make
?
Model
?
HP
?
Fuel Type
?
Fuel Capacity
42 gal / 159 l
Engine Hours
?

Accomodations

Water Capacity
42 gal / 159 l
Holding Tank Capacity
?
Headroom
6 3 / 1.9 m
Cabins
?

Calculations

Hull Speed
6.7 kn
Classic: 6.7 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

6.72 knots
Classic formula: 6.7 knots
Sail Area/Displacement
16.3
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.
16.33
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
35.0
<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

35.0
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
342.9
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
342.85
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
32.7
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
32.73
<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
1.7
<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
1.66
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

From BlueWaterBoats.org:

The Spencer 35 is a semi-custom bluewater cruiser designed by John Brandlmayr. Many of them have made offshore passages, including the well known “Whisper” owned by noted author Hal Roth. There were 64 hulls produced in Canada by Spencer Boats Limited during a production run that lasted more than twenty years.

History

Spencer Boats began production of moulded fibreglass sailboats in 1958 with the Spencer 28. The yard was located on Canada’s west coast, in the town of Richmond, British Columbia. Eventually, the line of sailboats grew to include numerous models up to 53 feet in length. The most popular was the Spencer 35, introduced in 1962.

The popularity of the Spencer 35 was no doubt helped by several books written by Hal Roth. These books, classics of early cruising literature, described the adventures of Hal and Margaret Roth aboard their Spencer 35 Whisper, which was built for the Roths in 1966.

Most of the models in the Spencer line were designed by John Brandlmayr, a prolific designer of a wide variety of pleasure and commercial vessels and co-founder of the company. John died suddenly in 1974, and a few months later his partner Phil Hantke also passed away. John’s wife Pat, who had been involved in the business since day one, carried on the business for the next decade with the assistance of their son Grant (who went on to become a naval architect himself) and the company’s skilled employees.

Like many sailboat builders, Spencer Boats ceased business in the economic downturn of the early 1980s. The last Spencer 35 was built in 1983.

Configuration and Construction

The Spencer 35 is an attractive traditional design. With an overall length of 35’ and a displacement of 12,000 pounds, it has a full keel with a cutaway forefoot and an attached rudder. It has a narrow beam of 9’6” and a waterline of 25’ that lengthens considerably when heeled. There are traditional wineglass sections and 4500 pounds of lead ballast encapsulated in the fiberglass hull. The standard rig was a sloop, with optional ketch and cutter rigs. Tiller steering was standard, although the occasional boat can be found with a wheel.

Yachts built by Spencer Boats enjoy a reputation of being very well constructed. Spencer Boats attached the bulkheads and deck to the hull while the hull was still in the mould, to ensure that the hull remained undistorted. The hull deck joint is heavily fiberglassed, forming a strong monocoque structure. The bulkheads are bonded to both the hull and deck, and the furniture is also bonded to the hull for additional support.

One advantage of the wineglass sections is that there is room in the bilge area for tankage, and this is where both the fuel tank and the main water tank are found. This keeps the considerable weight of the fuel and water supplies down low, and also frees up space above the cabin sole for storage. The tanks are moulded of fibreglass and then glassed into place.

There were significant changes to the design with the introduction of the Spencer 35 Mark II in 1974 (although some of the modifications may be found on some earlier boats as well). Prompted by the experiences of Hal Roth on Whisper, the cabin on the Mark II was extended 30” aft. This resulted in a smaller cockpit that was more suited to ocean cruising. It also resulted in considerably more room below. In addition, the Mark II has an improved rudder design and a higher aspect rig.

The Mark II also has an airex cored hull, rather than the solid fiberglass hull of the original design. Spencer Boats was a pioneer in the use of cored hulls, and by all accounts the hulls have held up very well. The coring starts several inches down from the sheerline and continues to the turn of the bilge, below which the hull is solid fiberglass. The deck is cored with end-grain balsa. The Mark II also has a substantial fibreglass toerail, instead of the teak toerail found on earlier boats.

Layout

There is no “standard” interior layout for the Spencer 35, because of its semi-custom nature. Rather than being built to standard specifications on a production line, each boat was built in accordance with the wishes of the commissioning owner. However, there is commonly a forward cabin with a v-berth followed by a decent sized head to starboard and a hanging locker to port. The narrow saloon generally has two settees with a centre-line table, although some boats have one U-shaped or L-shaped settee and an offset table.

The original design has a small galley aft to starboard, and a side-facing chart table to port. The Mark II model has a much more spacious galley (well known designer Ted Brewer described the galley layout as one of the best he had seen on a boat this size). In addition, the Mark II added a quarterberth and has a forward facing chart table.

The headroom in the main cabin is a 6’4″, with a few inches less in the head and forward cabin. The berths are all a generous length as well. The interior finishing varies, as some of the boats were sold as kits. However, the yard finished interiors are of a high standard with attractive teak joinery. The size, style, and location of portlights and other fittings and hardware may differ considerably from boat to boat, because of the semi-custom nature of the production.

Under Sail

The Spencer 35 is surprisingly nimble and responsive for such a traditional looking design. With its moderate displacement, narrow beam, and slack bilges, it is relatively tender initially. However, it stiffens right up at 25-30 degrees and has a very good capsize ratio of 1.68.

The Spencer 35 is generally very well-behaved on all points of sail, although it can roll a bit downwind in heavy following seas. Not surprisingly, it does not point quite as high as many more modern designs. However, it has decent performance upwind and doesn’t pound in a chop (although with its low freeboard and high angle of heel it can be a bit of a wet ride).

It has a very seakindly motion, with a high motion comfort ratio of 32. While It isn’t likely to be first across the line in many races around the buoys, it is a respectable long distance performer – the Spencer 35 “Haulback” placed first overall in the 2002 Singlehanded Transpac.

Specifications

Similar Boats

Alberg 35

Bristol 35

Cape Dory 36

Alberg 37

Francis Kinney Pipedream 37

Links, References and Further Reading

» Ted Brewer, Spencer 35: She’s capable of cruising anywhere in the world in comfort, Good Old Boat, Issue 38 – September/October 2004
» Ferenc Mate, Best Boats to Build or Buy (1982), Chapter 23 (focuses on the Spencer 1330, but also addresses the Spencer 35 and Spencer yachts generally)
» Hal Roth, Two on a Big Ocean (1972), After 50,000 Miles (1977), Two Against Cape Horn (1978), Always a Distant Anchorage (1988)
» Marianne Scott, Bluewater Spencer: A baby-blue Mark II Spencer 35 heads for the horizon, Good Old Boat, Issue 38 – September/October 2004
» Spencer Yacht Owner’s Association’s Facebook Group

This listing is presented by SailboatListings.com. Visit their website for more information or to contact the seller.

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