Two thirds of the earths surface is covered by water - Our carbon fibre power catamarans can safely cover all of it
WHY A POWER CATAMARAN?
Launching TMD 45' "Quiet Achiever" 2003
Trawlercat Marine's power catamarans range in size from the 45' Cruiser and Expedition model to luxury, custom built super cats up to 110' and beyond.
All our models feature wave piercing bows for increased performance and comfort, they have many unique features and areUNSINKABLE.
Our UNSINKABLE claim is substantiated by our design and construction method of using closed cell foam panels for their lightweight, toughness and positive floatation. Each hull is divided into watertight compartments that include two collision bulkhead compartments in the bow of each hull. Each hull sole is divided into separate watertight compartments providing a double hull bottom for added safety and increased flotation. Finally there are watertight compartments between the main deck and the under wing deck running the full length of the boat. These watertight areas have been calculated to provide positive flotation to compensate for the weight of the boat and its equipment even with both hulls full of water. Our minimum design criteria exceeds ABS Unrestricted Ocean Service Rules for speeds below 31 knots and our design concepts have been tank tested to withstand breaking beam seas twice as high as any similar size mono-hull powerboat.
Our unique combination of design and safety features will provide you with the confidence you need to have in a boat before you put to sea in it.
Our Trawler cats are first and foremost designed and built for SAFETY and COMFORT, followed closely by performance and their long range capability. Although our hull form is capable of high speed, high speed is not always comfortable, it burns excessive amounts of carbon fuel to achieve it and it has never been a real priority on a cruising boat.Cruising cats donít come with speed anymore than motor homes come with Ferrari performance.
Our long and narrow semi-displacement hull form does not produce the restrictive bow wave that mono-hull powerboats produce.Our hulls slice effortlessly through the water producing only a small bow wave that is quickly overcome as the vessel reaches 11 knots and basically becomes a planning vessel.This lack of bow wave resistance is the secret to a well designed power catamarans unique economical performance.
The overall beam of all Trawlercats is calculated to provide maximum stability and the formulae we use has been tank tested to withstand breaking beam seas of similar sized mono-hull powerboats. Trawlercats enjoy inherent stability that comes from having widely spaced hulls each with their own center of buoyancy.Having centers of buoyancy so far outboard allows a Trawlercat to sit flat in the water and to not roll from side to side like powerboats do in beam seas or from the wake of passing boats. The lack of rolling motion is also due to the tunnel effect created by having narrow hulls and a tunnel of air between them.For example; in a beam sea an approaching wave lifts one hull up and then down as it passes underneath the narrow hull and its shallow draft.The wave then enters the tunnel exerting its energy upwards into air.This process is repeated as the wave lifts up and lowers the down sea hull. On a mono-hull powerboat in the same beam sea scenario it acts like this; wave energy exerts its self against the side and under the rounded hull form of the hull lifting the boat up and rolling it away from the wave energy until the boat reaches its center of buoyancy.At this point the boat begins to roll back the opposite way as the wave exits the boat.The boat does not stop level but past level as it falls into the trough between waves and the next wave starts the same slow long rolling process over again. Itís this long slow rolling motion from side to side on a powerboat that produces motion sickness.
One of the most expressed delights of anyone who suffers from ďmal de merĒ is that the motion of a catamaran does not make them sick.
COMFORT Our smallest model, the TMD45' with a beam of 23' has more flat usable space than many 60' monohull powerboats allowing for very comfortable accommodation spaces. Our 65' Triple Deck and larger models offer space and layouts comparable to 100' megayachts.
The flat deck areas and non-rolling motion of our designs allows the use of domestic appliances and free-standing furniture turning your boat into a very comfortable floating cottage by the sea, but in a good way. The main salons have comfortable seating with an entertainment center and a dedicated dining area.
The TMD 45' Cruiser and Voyager have walk around queen size beds and split level bathrooms with optional full size bath tubs in their en-suite staterooms.
The hulls and sound insulated engine rooms have full headroom and are wide enough to walk around the engines to service them from either side.
WAVE PIERCING BOWS
Wave piercing bows by design lengthen the waterline and move the center of buoyancy forward therefore improving the efficiency of the hulls and the overall performance of the boat. The bows slice effortlessly through the water producing a minimal bow wave and allowing a smoother laminar flow of water along the hulls.
Another feature of the longer waterline length is that it keeps the vessel on a more level plane and this allows it to maintain a constant speed while providing a more comfortable motion for those onboard.
Tests carried out on our full size 52’ and 60’ prototype power catamarans, with and without bulbs, proved conclusively that comfort, speed and economy improved once the bulbs were fitted.Now with our latest bow technology the performance and comfort level has improved even more.
2010 TMD 45' With Wave Piercing Bows. Safety rails and a radar arch still to be added
VALUE FOR MONEY
If there is a downside to a catamaran over a monohull powerboat it has to be the cost. The size and spaciousness of a Trawlercat requires more material to cover its greater area.The two-hull configuration requires some equipment to be duplicated; two stand alone engine rooms require twice as much equipment, more doors, more insulation and longer runs for plumbing and electrics.You may not realize it at first, but you are getting a lot of boat for your money.
Our designs are in demand and their owners love them.In ten years only one owner has sold his boat and that was to build a larger version of the same design and he sold it for more than it cost him, such is the demand for well designed and well built power catamarans.
Quality always holds its Value.
Quiet Achiever's tight squeeze to reach open water, 2003