35 Duffy by Atlantic Boat Works

admin

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By far my favorite boat..it will happen someday..

http://www.atlanticboat.com/duffy35.html
"Not only is The Duffy 35 the most popular boat in our line it is one of the most popular lobster boats of all time with over 370 hulls built since 1982. The Duffy 35 is a built down hull with a fine forefoot and flat after sections producing good speed and the excellent ride that Duffy’s are famous for. Over the years the Duffy 35 has proven itself to be a safe and stable boat in all but the most severe sea conditions.

We celebrated the 350th Duffy 35 in 2002 by building a new hull mold for the 35. New for 2003 are two new deck molds. One work boat deck mold (steering bulkhead at 21'6") and a cruiser deck (steering bulkhead at 19'6"). Separate roofs are available for both deck molds. There is standing head room down forward with both the cruiser and work boat deck.

In addition to the hundreds of commercial lobster boats built on this hull the Duffy 35 has been hugely popular with commercial tuna fishermen and sport fishermen. She is a good moderately sized boat, large enough to range offshore in spring, summer, and fall conditions the 100+ miles that tuna fishing requires and small enough to do so with speed and fuel efficiency. Her reputation of excellent seaworthiness has been earned through hard work on the water over a twenty year period.

Duffy 35's have been built with as little as 200hp and as much as 700hp but most 35's today are being built with 225 to 500hp resulting in speeds, depending on weight, from 18 to 30+ knots. In work boat configuration an engine box is required."[attachment=0:3jem12at]untitled.JPG[/attachment:3jem12at]

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Blitzen

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Sumday Isle, RI
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Flowers Boat Works 46, 1991 Boston Whaler Outrage 19
Biggest problem witb the hull design is that the prop apature is too small for the higher horse power engings, power it with a engine to get you 20kts and you will be fine any more than that is a waste with this boat. That is why Atlantic Boat went to Spencer to design the 37. It is all about speed.
 

tashmoo2

Commander
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Sep 2, 2011
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Shennecossett Yacht Club Groton CT
Blitzen,

Very interesting. Harris, Bruno, JC, and others designed around this time also had prop diameter limits. It was not a consideration because engines with high HP to weight ratios were not availabe. deeper keels increased displacement for no reason.
 

tunaorlater

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Sep 9, 2011
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40' Northern bay
The 36 Northern Bay has the same issue. The 38 that was fixed and you get alot more speed out of the 38.
 

captainlarry84

Rear Admiral
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Sep 13, 2011
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Freeport NY
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KristenFormer Charter Captain
The largest diameter wheel a 35 Duffy can swing is 26. With good HP say 550 and a 1.75 gear you could swing a 26 X 26 wheel which should give a 35 Duffy a cruise sped of about 25 k4 knots with 300 gallons of fuel and a full load.
 
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