A750 hovercraft is designed for the following purposes:
– year-round freight transport on inland waterways and in coastal sea areas;
– transportation of heavy and oversized cargo, wheeled and tracked vehicles, drilling equipment and construction materials from lying out vessels to points not equipped with moorings.
Main characteristics
| Maximum payload, t | 60 |
| Length, m | 35,2 |
| Beam, m | 13,4 |
| Height (without mast), m | 9,0 |
| Cargo deck dimensions L х B, m | 22,0 x 7,0 |
| Minimum crew, prs. | 3 |
| Propelling engine power, h.p. | 2 x 2400 |
| Lifting engine power, h.p. | 2 x 1200 |
| Engine type | diesel |
| Speed, km/h | 60 |
| Range with 60 t payload, km | 600 |
| Russian Maritime Register of Shipping classification | KM [2] ACV |
| Service life, years | 20 |
Detailed description
Hull and superstructure. Material of hull and superstructure – aluminium-magnesium alloy. The connection elements of the hull and superstructure are rivets and argon-arc welding. Riveting of impermeable seams is made with sealants.
Air-cushion consists of three inflatable balloons, bow, stern and central skirts. The bottom surfaces of the air cushion are protected against wear and damages with polyurethane coating. The pressure regulation system in the lower balloons allows you to change the pressure in motion and during parking. Vessel movement is controlled by air rudders mounted behind the main propellers. Air rudders are driven by the hydraulic system.
Engine systems. Four diesel engines drive air cushion charging and propulsion systems.
Two engines drive propulsion system and two engines drive charging system via via clutch, toothed belts and drive shafts.
Propulsion system consists of two counter-rotating adjustable pitch propellers in rings. Hydraulic control system enables to change the angle of the blades and provides a reverse thrust by means of the main propellers.
The hovercraft is steered via air rudders installed behind the main propellers. Air rudders are driven by means of the hydraulic system.
Charging system consists of 6 centrifugal superchargers. Each supercharger charges air into corresponding part of the air cushion.
Interior layout and equipment. The crew cabin is equipped with 3 seats and the control panel.
If necessary, the craft can have a cabin for crew accommodation with 3 beds, a desk with drawers for utensils, a hanger for outer clothing. In the cabin there can be installed a refrigerator with a volume of 40-60 liters.
The toilet is equipped with a washbasin and a toilet with sewage system and storage tank.
Marine systems. The ventilation system provides forced ventilation of all ship compartments.
The crew cabin is equipped with an air conditioning system.
Drinking water is stored in a 150 l tank. Water to the wash basin and the toilet is fed by the force of gravity. Drinking water is heated by a built-in electric heater.
Pre-heating of the engine at low ambient air temperatures is provided by two self-contained liquid-fuel Webasto heaters. They also provide heat to living compartments of the vessel when the main engines are idle. Running main engines provide heating of living compartments via the engine cooling system.
The vessel is equipped with anchor, mooring, towing and life-saving devices, slow speed installation, ramp, rigging for cargo securing.
Electric equipment. The on-board electric network is based on 24 V direct current.
The power supply of the 24 V on-board network can be provided from the coastal source 220V, 50Hz via on-board 600 W charger/rectifier.
Also, at the Customer’s request it is possible to install a self-contained diesel generator connected to 220 V, 50 Hz network.
Exterior lighting is provided by spotlights and fog lights. To perform mooring and maneuvering in narrow waters a swivel search light controlled from the wheelhouse can be installed.
Cabin windshields are equipped with wipers.
To prevent freezing of the windshields when driving on the open water at sub-zero ambient temperatures, the windshield can be made double-glazed and equipped with a washer with de-icing liquid.
Emergency and signal equipment:
- – fire extinguishing system in the engine compartment with remote control from the wheelhouse;
- – five portable fire extinguishers and a set of fire tools;
- – two life rafts;
- – life jackets;
- – life buoys with lines;
- – a set of navigation lights and day signals;
- pyrotechnic signal devices.
Radio communication equipment. Depending on the area of the vessel operation the following GMDSS equipment for sea areas A1+A2+A3 can be installed:
- – VHF radio;
- – HF radio;
• satellite emergency position-indicating radio beacon “COSPAS-SARSAT”• GMDSS NAVTEX receiver;• terrestrial ship radio station “Inmarsat-C”.
Navigation equipment:
• gyrocompass;
• magnetic compass;
• lag;• echo sounder;
• navigation radar with the means of displaying information and an electronic chart system;
• navigation lights.
Depending on sailing conditions, the composition and brands of radio communication and navigation equipment are determined together with the Customer.
