We design and manufacture work boats and yachts for the high seas with the most extreme sea conditions. Our boats are created for our customers with a full range of materials used in the modern ship and boat manufacturing. We design environment-friendly vessels with low resistance and lightweight hulls, with significantly lower fuel consumption.
In our production, we prefer to use the most advanced composites according to the latest technology and we constantly update them. We use vacuum infusion and other vacuum production methods, which enable us to obtain a very high percentage of fiber in the laminate (70 percent or more). We use modern vinylester and epoxy resins.
Strengths of our approach
All projects are designed in accordance with the requirements of the Lloyd's Register and DNV certification companies.
We use solid fiberglass for manufacturing the bottom areas, which are exposed to impact loads (slamming). The fiberglass contains over 90% of woven fabrics and is supported by a powerful set of frames and stringers. All other parts of the structure are made of high-strength PVC sandwich. Vacuum infusion method allows to obtain a very strong and lightweight structure.
Key advantages of fiberglass
- GRP is more resistant than steel. Interlacing fibers woven materials allow you to create a single seamless structure from bow to stern. Under load GRP structure works as a single unit.
- We use unidirectional fibers for the GRP production reflecting the required load direction which can be further strengthened by a special filament placement (this is not possible with metal, because the metal sheet is anisotropic).
- GRP enables to achieve a simple and solid structure with increased resistance to the areas of concentrated stress.
- GRP is significantly lighter than steel and can be used for manufacturing of high-speed vessels of any size.
- The use of GRP sandwich material provides a solution for the thermal and noise insulation, as well as for the interiors’ treatment. Steel and aluminum require
spraying noise-absorbing layer of polyurethane foam, insulation and additional construction of the entire interior rigging and sewing.
- GRP has excellent sound and thermal insulation qualities.
- Damages GRP structures can be fixed very easily. Repairs require significantly less time and are much cheaper to execute than for the alternative materials.
- Modern GRP production methods prevent problems like osmosis, fibering and delamination.
- GRP-boat is lighter and cheaper than aluminium boats.
- GRP has no problem of corrosion like metal hull and does not require regular coating during operation in the seawater.
- The useful life of a GRP-boat is more than 25 years, which makes it a good professional investment.
Why do we design mainly catamarans:
Smooth-running in waves: the first sensation of sailing on a catamaran is a surprisingly smooth ride even in rough seas. This happens thanks to the narrow and widely spaced hulls that smoothly cut through the waves and to the damping effect of the aerodynamic cushion. As a result, the catamarans generate less spray and ensure drier sailing conditions.
Manoeuvrability: all catamarans are stable during straight running and are easy to handle in circulation. Even at the tightest turns, the catamaran firmly clings to the water, almost without a tilt into the circulation. In this sense, catamaran sailing is very similar to driving. High shear stability allows you to make sharp turns with a radius of 2-3 catamaran hull length almost without reducing speed.
Operational efficiency and cost-effectiveness: catamarans are highly cost-effective and significantly reduce fuel consumption, because the resistance to movement of a correctly
designed catamaran is far less than for a single hull vessel. This is due to a comparatively bigger elongation of the catamarans’ hulls.
Stability: catamarans are very stable vessels. In contrast to the single hull vessels, in which the displacement is concentrated in the area of the centerline, the separate hulls of the catamaran split the displacement and spread it wider ensuring stronger righting moment. This greatly improves navigability and allows to work with a much more efficient deck equipment than single-hulled vessels of the same size (e.g. winches and hydraulic manipulators, surveying equipment, etc.). During the sail in rough seas, the increased lateral stability of the catamaran reduces the rolling by 3 - 3.5 times compared to a single-hull vessel. A well-designed catamaran has a very good longitudinal stability, excellent rise rate on the wave and a much smoother pitching than a mono-hull.
Driving performance in the planing: catamarans have unique driving characteristics in planing mode. Significant elongation of the wetted surface results in better vessel hydrodynamics. Narrow hulls allow you to have less deadrise, which means less draft. This is a distinct advantage when sailing in shallow waters and when approaching to the shore shallows - you can land without even getting your feet wet.
The manoeuvrability in difficult waters and safety: catamarans usually have two installed engines. Being far away from the longitudinal axis, the position of the engines allow to obtain effective control points without the use of special thrusters. The use of the engines "in discord" can turn the catamaran literally "on the spot". This is a very useful feature in the narrows and narrow harbours. Moreover, the duplication of the propulsion system ensures higher degree of safety. Failure of one engine or fuel system (at the working ships, each engine has an autonomous fuel system) you can always get to the port or to the place where it is possible to repair the engine.
Wide deck: wide deck along the entire length of the vessel is a great advantage. It results in a more convenient layout of the premises and a large cockpit. Wide deck is irreplaceable for workboats, because it provides more flexibility in placing special equipment or loads. It is for this reason that the majority of workboats and special vessels are based on the catamaran set-up.
Easy on-shore storage: catamarans are stable on their two keels and do not require special keel blocks. It suffices to find a level ground and place the catamaran on it, putting the gasket under the keels. This feature of the catamarans is very helpful when operating the vessel in areas with strong tides as no special action needs to be taken to prevent the vessel from heeling on board at the time of low tide. [The catamaran simply snaps into the keels].
In summary, catamarans ensure safety, efficiency, seaworthiness, comfort, and is a good investment with attractive resale value. That is why the work catamarans make up a large part of the working fleet in the regions with most complicated sea conditions and their number is constantly increasing.