A Portfolio of Watercraft Designs
LOA 57.5 ft
Beam 15.4 ft
Draft 6.75 ft
Disp. 70,700 lbs
Sail Area 1140 sqft
Construction: Cold molded or Strip Built (with epoxy/glass encapsulation)
Power Owner’s choice – (I Selected a John Deere 4045 AFM 85 @ 160hp)
Tar Liom is a “Revisit” of my final school project from the Landing School. The original design is posted on another page of this site titled Tom’s School Days (Daze?)
The Boats are similar in some ways; being motorsailers with a ketch rig. The original use case also described a boat with Pacific Northwest influences; in my imagination capable of following the seasonal whale migrations.
Tar Liom has some differences from the original boat. A break in the sheer provides a little character, and in my mind gives the boat a more slender appearance. She has a flush deck forward, making the space below appear a little more open.
The Ketch Rig is similar, and offers options to the sailplan including a mizzen staysail.
True to the Pacific Northwest tradition, she is equipped (as drawn) with a Dickenson Marine Stove in the galley, which is capable of providing cabin heat and a source of hot water. It would be possible to substitute this with a gas or electric stove; (I have no prejudice against them) The diesel stove simplifies fuel requirements – and will keep below decks warm and dry in wetter weather.
Tar Liom is intended to be a capable cruiser or live aboard. Like the original design, accommodations are provided with two staterooms; a guest stateroom fwd, and the master stateroom aft. There is a head forward, with a separate shower stall.
The Aft Cabin/Owner’s Stateroom is large and has a head and separate shower as well. Space for a laundry service is provided in the owner’s stateroom W.C.
The pilothouse provides comfortable sheltered space from which to operate the boat – a plus in cooler, wetter climates like the Pacific Northwest, or the Maritimes for that matter. A galley is on the port side below, with the lounge/dining space opposite. This space opens up & out into the pilothouse giving a more spacious feel and allowing social activities to use spaces below, and in the pilot house.
While I realize that almost everyone has their own idea of what “Living Space” means, at the end of the day I asked the question, “Could I live in this space for the long term without constantly thinking I’d rather be ashore?” I think this gut check question is a reasonable one to ask given the investment required, and I’m pleased with the efforts to date.
The design is a “work in progress” – I will update the page as more details are completed. These will include the Outboard Profile & Plan, Sail plan, and General Arrangement Drawings, and a more detailed accounting of the boat specifications, method of construction and scantlings.
Renders of the 3D model created in Rhino 7 help me to envision a finished boat in its environment – it’s an excellent marketing tool but may not provide enough information to a builder about how the bout is to be constructed, or specify essential elements as can be seen in the 2D sail plan drawings. These drawings are “Works in Progress” meant to be updated as details evolve. This may require reworks of some elements of the 3D model as well. Sharp eyes may see some differences between the Sail Plan drawings and the 3D renders which have yet to be updated. This design will evolve to a point where all elements are reconciled with each other and yet still allow for discussion with a client (should one be interested) and their builder of choice
Check back – things do change!
Clicking on an image will enlarge it for easier viewing.
Aisling Fliuch began as an exercise to develop and improve my Rhino skills ( These designs are created with Rhino 7 and Orca 3D). The use case is similar to that of Tar Liom – specifically asking for a power boat suitable for longer passages offering live aboard capability.
Aisling Fliuch is designed with 2 staterooms; a guest stateroom forward, and a master stateroom midships. The master includes a head and shower. A second head and shower is located on the starboard side opposite the master stateroom . This can service the guest stateroom, and is easily accessible to the galley & saloon – without entering a stateroom. The galley can be equiped with modern appliances – gas or electric range, oven, and sizeable fridge freezer. alternatively, one could just as easily install a diesel stove – capable of galley duties and providing hot water & heat, simplifying fuel/power requirements.
Aisling Fliuch is meant to be powered by a single diesel engine – in this case I’ve chosen a John Deere 6090 providing 325 hp at 2100 rpm. The result is a top speed just over 10 knots, and a cruising speed of 8 knots.
I am interested in other propulsion systems such as diesel-electric and hydrogen fuel cell systems. I think these systems have a lot of potential for boats of this type.
It is a work in progress – preliminary Outboard Profile & Plan, and General Arrangement Drawings are shown.
I am currently developing specifications for strip/epoxy construction.
LOA – 60’9″
LWL – 56’8″
Beam – 19′
Draft – 6′ 1″
Displacement – 148,500 lbs
Propulsion – Diesel (JD 6090FM85 selected 325 hp @ 2100rpm)
Genset – Northern Lights M844LW3G – 20 kW @ 60 Hz
Fuel – 2200 Gallons Diesel (as Drawn)