Seadog Sailboats

Explore Seadog sailboats and the details behind each model. If you are shopping for a Seadog sailboat, we keep an eye out for Used Seadog Sailboats.

Model Listings Year Built LOA (ft) Beam (ft) Draft (ft) Disp. (lbs) Hull Designer Rig Keel
Seadog 306 for sale196630 ft9.5 ft3.5 ft12,765 lbsMonohullReg FreemanKetchTriple

Seadog sailboats: a single 140-boat class, not a marque with a range

The Seadog is a 30ft centre-cockpit ketch motor-sailer built as one closed production run rather than a brand that grew into a lineup. Practical Boat Owner and the Seadog Owners Association each put the total at 140 boats, built between 1967 and 1974 -- the whole of the Seadog story in a single class.

Origins and design

Reg Freeman is the credited designer, though the credit comes from outside any Seadog literature itself: Nick Skeates, the designer and builder of the yacht Wylo II and an Ocean Cruising Club Lifetime Award recipient, told Practical Boat Owner, "I think Reg Freeman did a very good job designing her." Who actually built the 140 hulls is a different matter. Neither of Practical Boat Owner's features on a restored Seadog nor the Seadog Owners Association's own site names a yard or company behind them -- an absence worth stating plainly rather than filling with a guess.

Character and construction

The Seadog Owners Association describes its boat simply as a motor-sailer, and Practical Boat Owner's account matches that framing: a 30ft ketch of modest sail area that one owner called "a happy medium" against a smaller boat he had sailed before and a larger one he would later have. The magazine was blunter about performance -- "not fast sailing boats but strong and steady," it wrote, "sort of the Land Rover of the sailing world." A restored Seadog 30 that Practical Boat Owner's Max Liberson took on carried a Perkins 4108 diesel producing about 38hp, though that is a detail of his particular boat rather than a factory specification for the class. The name itself has no fixed spelling: even within a single Practical Boat Owner feature, "Seadog" runs as one word in the headlines while "Sea Dog" appears as two words in the narrative prose.

Who Seadog is for

A Seadog suits a buyer after a slow, steady centre-cockpit cruiser from a small, closed production run rather than a builder with an ongoing model line -- more Land Rover than racer, in the magazine's own description. The Seadog Owners Association counts almost all of the fleet it built as still sailing, a claim worth taking as the association's own account of its own boats rather than an independently verified figure.

Frequently asked questions

01Who designed the Seadog?+
Reg Freeman is the credited designer. The credit comes from Nick Skeates, the designer and builder of the yacht Wylo II and an Ocean Cruising Club Lifetime Award recipient, who told Practical Boat Owner, "I think Reg Freeman did a very good job designing her."
02Who built the Seadog?+
The record doesn't say. Neither Practical Boat Owner's features on a restored Seadog nor the Seadog Owners Association's own site names a builder, yard, or company behind the 140 boats.
03How many Seadogs were built?+
140, built between 1967 and 1974 -- a figure Practical Boat Owner and the Seadog Owners Association both give independently of one another.
04What kind of boat is a Seadog?+
A 30ft centre-cockpit ketch motor-sailer with modest sail area, built for steady, comfortable sailing rather than speed. Practical Boat Owner likened it to "the Land Rover of the sailing world."
05Is it spelled "Seadog" or "Sea Dog"?+
Both. Even a single Practical Boat Owner feature uses "Seadog" in its headlines and built-count claims while switching to "Sea Dog" in its own narrative prose, so no single spelling has become the fixed convention.