This exceptionally well maintained Duffy 42 is equally well finished. Her 2 stateroom galley up layout provides 2 comfortable staterooms, the master with a queen berth, and separate head with stall shower, while her twin Caterpillar 435s provide upper end cruise speeds in the 17 kt. plus range. Among other major items she was completely Awlgripped from the waterline to the mast head in 2014 and received a full array of Raymarine Axiom Electronics in 2020

Vessel Walkthrough

This Duffy 42 was built start to finish at the Atlantic Boat Company Yard in Brooklin, Maine.  The layout is in a 2 stateroom, (the master with an island queen berth) galley up configuration with a single head with stall shower with 6′-5″ headroom in the Salon and 6′-2″ to 6–3″ below decks 

Her finish is done in a traditional “Herreshoff Style” with varnished mahogany trim on white flat panels while the cabin soles are a solid varnished teak parquet throughout. Headroom in the Salon is 6′-5″ and a bit over 6′-2″ below. There is an abundance of natural light and ventilation with 6 opening stainless steel ports and 3 hatches below while the wheelhouse/salon has 8 windows and 2 doors. When natural ventilation is not sufficient there is a total of 40,000 BTUs of reverse cycle (heats & cools) air conditioning capacity. Artificial lighting is equally well thought out with extensive overhead dome style lamps and then swivel style reading lamps at the berths as well as decorative lamps. 

Starting forward is the Master Stateroom with a 6′-3″ by 4′-4″ island queen berth with custom inner spring mattress. Below the berth there is storage in a set of cargo drawers and there are his and hers hanging lockers and bureaus outboard and aft. The forward section of the berth offers a large storage area.  Other features include access to the anchor locker forward and bookshelves outboard. 

Aft and to starboard is the Guest Stateroom featuring a 6′-6″ by 4′-8″ double berth below which there is storage in two cargo drawers and well as some drop in or bin type storage. Aft there is a hanging locker and 3 large drawers and there is storage outboard on a shelf with fiddle while a book case is forward. 

Across the fore and aft companionway is the enclosed Head featuring a separate stall shower compartment, Vacuflush fresh water W.C. and large vanity with storage and stainless steel sink. 

Up three steps (storage under) to the Wheelhouse, Galley, and Salon. All Hunter Douglass blinds provide shade and privacy throughout the wheelhouse. The lower Helm Station is to starboard with full vessel controls, the yacht’s electrical distribution panels and side door providing abundant air flow and giving convenient access for the captain to move onto the foredeck. Seating at the helm is addressed with matching custom Arigoni Designs Captains Chairs.   

Aft of the helm is the Salon area with comfortable U-shaped dinette (all new Sunbrella upholstery) which makes down to a large double berth almost 7′-6″ in length and 4′-7″ in width when desired. Dining is off a folding leaf varnished mahogany table which will easily seat 6 and drops down to make the berth up. 

The straight Galley is to port with Formica counter tops, single basin stainless steel sink, 4 burner Thermador electric cooktop with new microwave, new toaster, new coffee maker and new ice maker.  You will find a spacious Norcold dual voltage full sized upright refrigerator/freezer aft. There is extensive storage in several lockers and drawers.  

  • Seth & Thomas brass clock & barometer set
  • KVH Tracvision 3 satellite entertainment system
  • New TV wired for Direct TV  in master stateroom.  Wired for TVs in guest stateroom and wheelhouse
  • U-line Ice maker


All new Electronics in 2020! 
Lower Helm:

  • Raymarine Axiom 12 inch MFD – Radar, Sonar, GPS
  • Raymarine Auto Pilot
  • Raymarine VHF
  • Standard Horizon VHF
  • Fusion Bluetooth Stereo Sound System 
  • Ritchie 6″ magnetic compass
  • Horn
  • 3 variable speed windshield wipers 2 with windshield washer system
  • Raymartine “Backup” Cameras (4) in cockpit with dual display at helm (shows wide angle view aft)

Flying Bridge Helm:

  • Raymarine Axiom 12 inch MFD – Radar, Sonar, GPS
  • Raymarine Auto Pilot
  • Raymarine VHF
  • Ritchie 6″ magnetic compass
  • Horn


Wired for both 12 Volt DC and 110 Volt AC service. An Onan 12.5 kw generator showing 1235 hours as of date of listing handles heavier loads when off the dock while a Xantrex 300 watt inverter handles lighter loads. 

12 Volt DC: 

Distribution panel with breakers 
Volt & Amp meters 
(2) 90 amp alternators 
4 8D gel cell batteries for House/Inverter/Engine start service 
1 Group 27 gel cell generator start battery 
110 Volt AC 

50 amp shore power connection in cockpit 
Distribution panel with breakers 
Volt & Amp meters 
Xantrex 3000 watt Inverter/140 amp battery charger 
50 amp 50′ shore power cord 
50 amp 20′ shore power cord 
30 amp shore power cord, splitters and adapters


Equipped with twin Caterpillar 3208TA 435 HP fresh water cooled diesels turn 5 bladed 26×25″ propellers (port wheel refurbished on 11/22) on 2″ shafts through 2:1 Twin Disc reduction gears. 

The owner reports an upper end cruise speed of 17 knots at 2400 rpm though his regular cruise speed of 14-15kt is achieved at 2250 rpm. 

2013 -Starboard engine was removed from the vessel and completely rebuilt after an aftercooler failure, approximately 500 hours of run time since time of rebuild.. The port engine shows 2530 hours as of the date of listing.  

  • Mathers Micro Commander, single lever, electronic engine controls
  • VDO engine instrumentation
  • Single racor fuel filters
  • 12 volt engine room lighting
  • Fireboy Halon manual/automatic engine room fire suppressant
  • Spur cutters
  • Oil change system for engine and gears
  • Hydraulic double ram steering
  • 3 electric bilge pumps
  • High bilge alarm
  • Heart Tank tender for fuel and water tanks
  • Tank Watch monitor for holding tank
  • 3 Marine Air reverse cycle (heat & cool) air conditioning units (12k, 12K & 16KBTUs)
  • Tasco 12 gallon hot water heater (also supplied with 110 volt heating element)
  • New remote battery switches (4) at helm, one for each battery)
  • The owner has installed a fresh water manifold that allow him to quickly run fresh water through the raw water side of all elements on the engines, generator, and air conditioning equipment when done with the vessel for the day.

Hull and Deck

Fiberglass hull and hull & deck with end grain balsa coring from the engine stringers up and with end grain balsa coring in the house and decks. The entire topside, house, decks, mast were Awlgripped in 2014! The topside are Corinthia Blue with Snow White/Blue/Snow White Bootstripe, Moon Dust non-skid areas on deck, and Snow White waterways and house. As part of this the hull was re-faired and long boarded prior to repainting and is perfectly fair!! 

Another example of the over the top care program for this yacht is the lazarette ventilation system. Typically lazarettes can be pretty damp due to wet dock lines and fenders and other paraphernalia being stowed there. To make certain this area stays bone dry the owner has installed vents from the engine compartment with a fan to pull hot dry air for the engine compartment while underway into the lazarette space and then pump it back to the engine room. Consequently the lazarette is bone dry! 

Full beam cockpit app 8′-9″ in length from door to the transom fashion piece. Transom seat is heavily insulated as an ice box for fish storage. Forward and to starboard are two lockers, one with drawers originally a tackle storage but odds and ends for this owner. Raised panel doors to a tall locker for rod storage and another locker forward and under the ladder to port. All doors are made of Corian!! 

Wide side decks with conveniently placed hand holds lead forward with a stainless steel bow rail starting at the aft end of the trunk cabin. An appropriately sloped stainless ladder leads to the flying bridge which has extensive seating forward that will easily accommodate 8-10 with storage under the bench seats. Dinghy storage is to starboard; the dinghy is easily handled on the electric hoist fitted to the mast and boom. 
New Edson Davits on the transom making dinghy launching a breeze. 

  • Lewmar 1000 electric anchor windlass with foot pedal controls forward and controls at upper helm station
  • 44 lb Bruce anchor with 200′ chain
  • Fresh/salt water was down forward (single faucet with pump plumbed to both a Y valve to pull either fresh water or salt water as desired)
  • Fortress spare anchor and 2nd rode of app 30′ chain and 300′ 5/8″ nylon braided rode
  • Aluminum frame bimini with Stamoid Bimini Top
  • Full flying bridge enclosure with EZ2CY
  • Awlgripped PVC toe rail and all stainless deck hardware
  • Fresh/Salt water wash down aft (plumbed as is the forward wash down)
  • Live Well
  • Transom seat is insulated to serve as a large fish box if desired
  • Transom door
  • New teak swim platform (replaced fiberglass platform for better appearance and performance at sea)
  • Aluminum Awlgrip mast and boom with electric hoist for dinghy
  • 6 Type II PFDs
  • Life Ring with line
  • Flare Kit
  • 4 fire extinguishers 2.5 lb dry chemical
  • Bell
  • 5 fenders with covers
  • 6 new braided docklines

Call Steve McDonald at Stellwagen Yacht Sales for more details 781-974-3318.

  • Make: Duffy
  • Model: 42 Flybridge
  • Model Year: 1994
  • Category: Downeast
  • Hull Material: Fiberglass
  • Hull Design: Semi-Displacement
  • Condition: Used
  • Class: Cruiser Yacht
  • Hull Color: Blue
  • Fuel: 500 Gallons
  • Main Engine: Twin CAT 3208 435’s

Additional Photos