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1983 Whitby Boat Works Whitby 42 double headsail ketch

Green Cove Springs, Florida, United States
$69,900 USD
Condition: Good

She is a comfortable, safe, classic home on the water for Blue Water or Coastal Cruising. We are the second owners. COMFORT: Six foot 5 inch headroom. The aft cabin with en-suite head and second full head in main salon with entrance off V-berth make this great for a family of 4 or for guests. A full cockpit canvass enclosure creates a sun room in inclement or cold weather. SAFE: All control lines are lead to the cockpit, including halyards, furlers and two reefing lines for the main sail. A life raft is included. CLASSIC: Teak & Holly floors throughout with oiled interior teak finishes. Exterior teak (cap rails, rub rails, grab rails and cockpit floor grating) are Cetoled. Fuel capacity of 210 US gallons including a fuel polishing system and water capacity of 180 US gallons plus a desalination unit enable long-range blue water cruising. Other features of this boat include Stainless Steel tempered glass opening portholes with bug screens, wind generator, two solar panels, all standing rigging has been inspected recently replaced where needed, RIB dinghy with 9.8 HP outboard. Diesel engine is Ford Lehman 90 HP with a Velvet drive transmission and 3-bladed prop with a line cutter. The photos of the interior are from 2019 or more recent and a low tech virtual tour was shot in October 2021. Full Specs, Photo Gallery and Virtual Tour available at pilgrimspassages.com

Equipment: Water maker: PUR 160E (rated 6.7 Refrigeration/Freezer: E-Z Kold with dual compressors/digital thermostats, water and/or air cooling Stove: Seaward HilleRange 3 burner Sink: Stainless steel double sink Drinking water filter: Rainfresh RV Filter1S Foot pump draws from tanks or sea water 2 opening hatches with screens (main salon and V-berth) 2 windows with venetian blinds Dickinson Newport Diesel furnace Holding capacity: 40 gallons Y-Valve for Holding Tank, electric pump for discharge ELECTRONICS Radar: JRC 1500 VHF: ICOM IC-M402 with cockpit microphone and speaker VHF antennas: 2 Depth sounder: Garmin 300c fish finder Knotmeter: Auto Helm ST 40 Wind speed/Direction: Auto Helm ST 40 Chart Plotter: Standard Horizon CP300i with North America chart set GPS: 2 Garmin 76 and Garmin 78 Autopilot: Auto Helm 6000 with remote control Rudder angle indicator, part of ST6000 Stereo: Sony AM/FM with CD and remote control, 2 speakers Badboy Extreme MJ internet amplifier ELECTRICAL SYSTEMS 12V House Bank 1: 6V (2) 12V House Bank 2: 12V (2) Starter battery: Interstate 12V Monitor Amp hours: Victron Energy BMV-700 Battery charger: IOTA 50 amp Smart alternator regulator Balmar ARS-4 Alternator: One Balmar 90 amp Wind Generator: KISS with Custom Regulator 2 x 85 watt solar panels with Tristar 40 regulator SAILS & RIGGING Main: Full-battened, in very good conditions with on-boom sail cover and sail bag Reefing: 2 reef points on main, each with Single Line Reefing Park Avenue type boom, lazy jacks Jib: on Harken furler in good condition with sail bag Mizzen: Full battened in excellent condition with cover and sail bag Staysail: on Profurl furler in good condition with sail bag Running Rigging: Halyards: 2 main, 2 mizzen, 1 mizzen staysail, 1 Genoa, 1 staysail, 1 spinnaker Primary main and spinnaker halyards, 2 reefing lines, 2 furling lines led aft into cockpit Rigged for Spinnaker (halyard, pole, down haul, mast fittings) Winchs: Cockpit Headsails, 2 Lewmar #48 ST 2 Barient #21 ST Winch: Cockpit Halyard Lewmar #30 ST Winch: Main mast, 2 Lewmar #30 and 2 Lewmar #8 single speed Winch: Mizzen mast, 2 Lewmar #8 single speed Gybe preventer Standing Rigging / chain plates (inspected and replacements made in 2019) DECK EQUIPMENT Dodger/ Bimini: Full enclosure, heavy duty Stainless Steel frame Teak cockpit grating Primary Anchor: Rocna (55 pounds) with 200 feet chain plus 60 feet line Anchor 2: Danforth with 150 feet 3/4 inch nylon Anchor 3: Danforth (on stern) Windlass: Lofrans Tigres 3/8 BBB Deck wash down: salt water, Bow. Salt and fresh water, Stern Rails: Stainless Steel stanchions with Stainless Steel rails aft to gate Lifelines: Amsteel gate to bow Bow pulpit: Stainless Steel and trampoline mesh floor Dinghy davits: Stainless Steel (Kato Island model) Dinghy outboard: Tohatsu 9.8 hp Dinghy: AB 9.5 foot Aluminum RIB with double floor Life raft: 6 person life raft -2016 refurb with stainless deck mount UV-resistant cover. Includes personal EPIRB Electronic flare: Weens & Plath SOS Distress Light Life sling and recovery tackle Magna Propane BBQ

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

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Edward S. Brewer
Ft. Myers Yacht & Shipbuilding
Whitby Boat Works Ltd.
# Built


Length Overall
41 11 / 12.8 m
Waterline Length
32 8 / 10 m
12 11 / 4 m
5 6 / 1.7 m
23,500 lb / 10,659 kg
8,000 lb / 3,629 kg

Rig and Sails

Reported Sail Area
875′² / 81.3 m²
Total Sail Area
702′² / 65.2 m²
Sail Area
322′² / 30 m²
43 0 / 13.1 m
14 11 / 4.6 m
Air Draft
Sail Area
380′² / 35.3 m²
49 0 / 14.9 m
15 5 / 4.7 m
Forestay Length
51 4 / 15.7 m
31 5 / 9.6 m
10 11 / 3.4 m

Auxilary Power

Ford Lehman
Fuel Type
Fuel Capacity
180 gal / 681 l
Engine Hours


Water Capacity
290 gal / 1,098 l
Holding Tank Capacity


Hull Speed
8.0 kn
Classic: 7.66 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

8.01 knots
Classic formula: 7.66 knots
Sail Area/Displacement
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.


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: 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.


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
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.


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


From BlueWaterBoats.org:

The Whitby 42 is a rugged-looking, full keeled, heavy displacement cruiser designed by Ted Brewer in 1973 but lacking the “Brewer bite” that improved the performance of her sisterships, the Brewer 12.8 and Brewer 44. Although the most commercially successful of Ted Brewer’s designs, and considered a good value, liveaboard shoal water cruiser, opinion is that the Whitby 42 is not as rugged as she might suggest. Although she has completed serious offshore passages, weaknesses in her construction mean that she is not the preferred choice for serious blue water sailors. Not renowned for performance under sail, the accommodations are perhaps the real attraction of this center cockpit cruiser as well as the 5′ draft which is excellent for shoal waters.


The first Whitby 42 splashed out of the yard in Ontario, Canada in 1973. Whitby Yachts, owned by Kurt and Doris Hansen, went on to build 200 hulls from 1973 to 1983. Previous to this, Whitby Boat Works had built the Alberg 30 and Alberg 37. With the 42′ construction quality gradually improved until 1983. Production then shifted south to Fort Myers Shipyard in Florida where another 32 of these ketches were built along with the Brewer 12.8 and Brewer 44. The Myers versions have a reputation as having the highest quality construction. The 12.8 design substituted a cutter rig instead of the Whitby’s ketch rig, added a Brewer bite to the full keel and added a centerboard. The hulls are lighter and stronger, and the weight savings are used to increase ballast and stability. The Brewer 44’s are a stretch version of the 12.8’s.

Boat Configuration

The Whitby 42 has a modern center cockpit aft stateroom with walk through arrangement. Forward is a large V-berth. There is a forward head with shared shower. In the salon, a L-shaped settee dinette arrangement is offset by two swivel chairs. The swivel chairs illustrate that the Whitby 42 was geared more as a liveaboard than a serious offshore cruiser. A U-shaped galley is aft to port. The walkway has low headroom due to the cockpit lockers. The aft cabin has a full width bunk with en-suite head.


The hull has balsa cored topsides like many Canadian manufacturers of this vintage. Below are alternating layers of mat and woven roving with polyester resin. The hull and deck is secured on most by pop rivets. Enlaid is a molded liner to stiffen the hull and provide interior structure though at the expense of hull access. She has a ketch rig. The engine was a great 67 HP Ford Lehman that provides plenty of punch.

Under Sail

Sailing performance, though better than a Westsail 42, is still a bit of a weakness. Not only does she have a rather full keel with connected rudder, but her buttocks are more rounded so she is more tender than her rugged looks and heavy displacement might suggest. Without a bowsprit she has wicked weather helm. Otherwise she is a stout boat for the trades with her shoal draft of 5-feet able to access the shallowest of harbors.

Buyers Notes

Owners advise buyers to examine the water tanks which are oddly fiberglass with an aluminum top plate. Another problem is the keel fuel tank which sits down deep in the bilge. The hull to deck is often secured by stainless steel rivets although many took up the option of through bolts. The mizzen mast does not have a solid glass radii and is prone to compression. Look for 42’s with a bowsprit to reduce weather helm and increase performance.

Links, References and Further Reading

» Kretschmer, John. “Whitby 42.” Used Boat Notebook. Pages 164 – 167.
» Hornor, Jack. “Whitby 42.” Boat US.
» The Whitby – Brewer Sailboat Association. The Whitby Owners Forum



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