Low Tide

Yacht Designer Tad Roberts' Web Log

Author Archives: admin

Gillnetters at Cassiar Cannery

Gillnetters at Cassiar cannery waiting for the season to start. All painted up, some of these are new boats, one or two built at the cannery and others built by Wahl’s in Prince Rupert. No chimneys so these boats had no heat. This was post Easthope, boats were running Chrysler Crown’s or Ace’s. The[.....]

Capsize of Refugee Boats in the Mediterranean

Mass drownings in the Mediterranean Sea day after day. A horrible situation that’s entirely preventable, or would be if someone (UN?) could enforce some simple loading guidelines. Of course I realize the problems are not anything close to simple, and the only real cure is to eliminate the need of people fleeing their homelands in search[.....]

Stability and the Leviathan II

Leviathan II has been recovered and is floating upright. This is good and it will allow investigators to gather facts on the precise condition of the ship at the time of the accident. Unfortunately, damage is so extensive that any “real stability at time of capsize” will be impossible to establish. This[.....]

The Troller Georgina

Her name is Georgina, a very old picture of a troller, perhaps before gurdies, for sure no davits. No exhaust stack so probably Easthope power. It’s mesmerizing how these old boats would slip along at 5 knots with no wake at all. Photo courtesy Don Macmillian, from his mother’s collection. Likely taken on the North[.....]

Small Boat Stability

Before we start looking at specific stability issues and possible regulatory problems, it’s important to get the basics understood. Above is a basic diagram showing three stability cases. The “Stable Condition” where G is below M and there is a positive GZ. Gravity is pushing down through G, the Buoyancy force is[.....]


Leviathan II was built in 1981 as the CZ-72-112, a fast aluminum crewboat, her name changed at some point to Crown Forest 72-112, and she was rebuilt in 1996 to become the Leviathan. Registered length is 64.5′, beam 15′1″, and depth 5′3″ (this is not draft but depth of hull, deck to keel). 32.58 gross[.....]

IDAHO – A Lee & Brinton Halibut Schooner

A couple of beautiful prints sent to me by John Rawlings. This is the Lee & Brinton design for Idaho, launched by Nilson & Kelez in Seattle in 1912. Idaho was 78′4″ x 19′5″ x 9′3″ and 76 gross tons. In the drawing the engine appears to be a three cylinder, and John reports original[.....]

Boats Should Look Like Boats

Concept of the day…..department of How Come? Why oh why can we not have heavy displacement cruisers that look like boats? The two boats shown here have almost the same accommodation, despite my sketch (above) being only 44′ x 14′ compared to the Nordhavn (below), at 55′ x 18′. Both have a separate pilothouse with[.....]

Tad Roberts facebook page

I have a facebook page where I post daily boat stuff, you might find something of interest……

Edwin Monk Sr. and Lorne Garden

From the late 1940’s into the 1950’s, Edwin Monk Sr. and Lorne Garden were partners in the firm of Edwin Monk Naval Architects. Lorne was the older brother of better known Seattle/Victoria designer William Garden. Very little is said about Lorne in the available printed references. Ed Monk Jr. recalls visiting the[.....]

Powered by WordPress. Built on the Thematic Framework.