Purpose: year-round transportation of passengers with capability to enter an unequipped shore.
Area and operating conditions:
- water basins with max wave height h<=1,0 m (3% occurrence) and max wind speed <=15 m/s in hovering mode;
- water basins with max wave height h<=2,0 m (3% occurrence) and max wind speed <=15 m/s in displacement mode;
- non-navigable rivers, shallow, swamped, grassy, frozen and snow-covered water basins, ice hummocks;
- ambient air temperatures range: from – 35o C to + 35o C.
Construction type: passenger/cargo amphibious boat on air cushion.
Russian Maritime Register of Shipping classification: “KM 2 ACV passenger-A”.
Main characteristics
| Seating capacity, prs. | 12/52 |
| Length on air cushion, m | 17,23 |
| Beam on air cushion, m | 7,94 |
| Height on air cushion (without mast and stern lightning rods), m | 7,7 |
| Main engine type | diesel engines |
| Engine nominal power, HP | 2 x 370 |
| Crew, prs. | 2-3 |
| Cruising speed on calm water, knots (km/hour) | 38 (70) |
| Climbing angle, degrees | 8 |
| Clearance, m | 0.95 |
| Height of vertical obstacle, m | 0,6 |
| Fuel consumption, l/h | 110 |
| Fuel stock, liters | 800 |
| Range on calm water, km | 400 |
| Propelling system | two 6-blade propellers in rings |
| Air cushion | inflatable balloons, front and rear skirts |
| Operation temperature range, degrees C | from -35 to + 35 |
| Max wind speed, m/sec | 15 |
Detailed description
General arrangement. The vessel construction includes metal hull and superstructure, propulsion unit and flexible air cushion parts.
The wheel room in the front part of the superstructure accommodates the crew members (driver and mechanic) and is equipped with the vessel control panel.
The passenger compartment accommodating 30 – 66 passengers and luggage is located in the middle part of the superstructure. The compartment is equipped with armchairs with seat belts for passengers, a toilet, and shelves for keeping life jackets and luggage.
Propulsion and steering system of the vessel is installed in the stern of the vessel.
The lifting centrifugal fans (4 units) are located in the aft side divisions of the hull.
Landing area for passengers is the bow deck with gangway ladders on each side of the vessel.
The wheel room. The wheel room is located in the prow. Access to wheel room is provided via a door, mounted on the bulkhead of the vestibule.
The wheelhouse has the following equipment:
– control panel of the ship;
– crew members seats;
– radio and navigation equipment, instruments;
– switchboards;
– fire extinguisher;
– cabinet with pyrotechnic signal means.
The wheel room is ventilated by means of electric fans and ventilation heads on the roof. It is also equipped with air-conditioning.
Passenger compartment. Passenger compartment is in the central part of the vessel.
Toilet is on the starboard side in the aft part of the passenger compartment.
Emergency exit is arranged on the starboard side of the passenger compartment.
The compartment is equipped with air-conditioning and ventilation.
Engine rooms. In the rear of the hull there are two engine rooms. The compartments are accessible from the main deck through the hood covers.
Each engine room contains the following equipment:
– main engine;
– transmission parts actuating the main propeller and air superchargers of the respective side;
– equipment and piping of engine systems;
– fire fighting equipment (fire extinguisher, fire extinguishing aerosol generators, fire blanket).
Propulsion system consists of two variable pitch propellers with a diameter of 2.5 m in rings, installed on a special power pylons on the stern.
The propellers have a protective fence to prevent the ingress of foreign objects, as well as to ensure safety during operation of the vessel.
Supercharging system. The vessel is equipped with a lifting system which includes four superchargers installed in pairs on starboard and portboard. Each two-piece supercharger is a centrifugal fan with double inlet.
Control system of hovercraft motion consists of six vertical rudders located three at each propeller ring. All rudders are connected by a synchronization rod. The rudders are turned by the steering wheel from the wheelhouse and driven hydraulically and via rod linkage.
Heating of the passenger compartment is provided by four dependent heaters located along the sides of the cabin. These heaters are heat exchangers with electric fans, the thermal energy for the heaters is taken from the engine cooling system.
Two dependent heaters are combined in parallel and operate from a circuit connected to the cooling system of the starboard or portboard engines correspondingly.
Afterpeak of the main hull. Afterpeak is located in the rear of the hull. Access to the afterpeak is provided from the main deck through watertight hatches.
Afterpeak contains the following equipment:
– main fuel tank;
– fuel filters;
– fire extinguishing aerosol generator;
– cans for oily water – 4 pcs.
Lighting. The vessel is equipped with single basic and emergency lighting system. The lighting system includes lighting of the wheelhouse, vestibule, passenger cabin, toilet, engine rooms and the open deck (bow and stern of the vessel).
The internal lighting system consists of ceiling LED lamps, exterior lighting consists of lamps NPP 03-100-003 type make. Lights control of all lamps (on and off) is actuated from the panel of the engineer, located on the starboard side of the wheelhouse.
The vessel design enables to connect portable lighting to electric sockets installed in all compartments.
Radio equipment. Radio communication equipment and its location on the vessel complies with part IV “Radio Equipment” of “Rules for the equipment of ships” and with part XVII of “Radio Equipment” of “Rules for the classification and construction of high-speed vessels” of the Russian Maritime Register of Shipping.
Depending on the area of operation the vessel can be equipped with the following radio equipment:
- VHF river range stationary station – 2 units;
- VHF river range portable station – 1 unit;
- MF/HF transmitter – 1 unit;
- VHF GMDSS radio with DSC – 1 unit;
- NAVTEX service receiver – 1 unit;
- VHF equipment of duplex radio telephone communication – 3 units;
- VHF equipment of two-way radio communication with aircraft – 1 unit;
- radar transponder – 1 unit;
- COSPAS-SARSAT emergency radio beacon– 1 unit.
Navigation equipment. The vessel is provided with the following navigation equipment in accordance with the requirements of part V “Navigational equipment” of Rules for equipment of sea-going vessels and part XVIII “Navigation equipment” of Rules for the classification and construction of high-speed vessels:
- radar equipment with GLONASS/GPS receiver;
- satellite compass;
- magnet compass.
Public address system. The vessel is provided with public address system.
The system is intended:
- to provide two-way loudspeaker communication between wheel room and engine compartment;
- to broadcast commands to passenger compartment and to the external loudspeaker mounted on the mast.
Power supply of the main VHF radiotelephone station is provided from the control panel in the wheelhouse.
The main sources of electricity for the onboard 24 V network are two generators with a capacity of 4.8 kW each installed on the main engines and batteries working in floating mode with the generators. Charging batteries is produced from the generators or from a rectifier charger (when the vessel is on the base).
