2 people

The project is not mass produced.The high-speed amphibious hovercraft Neptune 3 “Sobol” is designed to carry 150 kg of cargo or up to 2 passengers. Hovercraft belongs to the class of “sports and entertainment” hovercraft and is designed for the pleasure of driving quickly across bodies of water in summer or winter, including briefly going ashore and rolling back. The boat is capable of overcoming smoothed ledges up to 60 cm high and not smoothed ones – up to 20 cm. The boat is capable of reaching speeds on the water of about 70 km/h.FrameThe body is made of fiberglass. Structurally, it consists of two parts: the outer hull and the deck. The shape of the outer body is a flat bottom with rounded sides along the entire perimeter.
The strength of the structure is ensured by the required thickness of the skin and additional reinforcements.
The Hovercraft remains buoyant when the engine is turned off due to its waterproof hull.SalonThe hovercraft interior is made without a superstructure. In the center, along the hull of the vessel, there is a longitudinal seat with a locker on which the skipper and passenger are placed. A splash-proof windshield is installed in front of the driver. There are longitudinal handrails installed on the sides of the hovercraft. The Hovercraft is equipped with a white all-round light and an orange flashing light.
By special order it is possible to produce a superstructure with a fiberglass bow and an awning in the stern.Engine
One ROTAX-582 with a power of 64 hp is installed as the main engine on the hovercraft.
ROTAX 582 Model 99 piston engine – gasoline, two-stroke, two-cylinder, in-line cylinder, with a liquid cooling system, with a rotating disc intake control valve, with an electronic duplicate ignition system, with carburetor mixture formation.
The engine is equipped with a resonant type exhaust system.
The engine starting system may have a manual or/and electric starter.
An integrated 12-pole generator ensures the operation of the engine ignition system and the electrical system of the device.
For mounting to the motor mount, the engine has four threaded rods on the bottom of the crankcase.
The engine service life before the first overhaul, as well as the service life between overhauls, is 300 hours.
Warranty life – 100 hours of operation or 6 months from the date of first start-up, or 1 year from the date of purchase.
To monitor the operation of the engines, a tachometer and a coolant temperature sensor are installed in the control panel.
The engine is installed in the rear of the hull in front of the propeller. A single-stage gearbox is installed on the engine to reduce the speed of the propeller shaft relative to the crankshaft speed. The torque from the gearbox is transmitted directly to the propeller.
The hovercraft has a 23 liter fuel tank. Fuel consumption at maximum speed is approximately 20 l/h.Flexible fencingThe hovercraft uses a single-tier flexible fencing scheme with removable elements around the entire perimeter, without a flexible receiver. The role of the receiver is played by the space between the hull and the deck.
The role of the air cushion supercharger is played by the sector air intake behind the propeller. Every second, the VP supplies air under pressure to the receiver, which directs it through many holes to the removable elements. Next, the air exits through the edge between the removable element and the surface.
This scheme allows the removable elements to remain elastic. Those. When passing obstacles, the flexible elements deflect and allow the object to pass underneath without trying to resist it.
Only the lower segmental tier, which consists of many independent elements, is involved in contact with the surface. Each element is attached to the receiver with four clamps. Replacement is simple and does not require special tools or skills; carried out in 3-5 minutes.
Thanks to the constant air flow in the VP, the GO will maintain the ability to move the hovercraft even if several removable elements are lost.
GO material is rubberized fabric based on rubber nylon. This fabric allows you to straighten and take a given shape in low temperatures.

Propellers and blowers VP
The hovercraft is equipped with one 12-blade fixed-pitch propeller with a diameter of 850 mm in an aerodynamic nozzle. Blade material: fiberglass.
Behind the propellers, a block of air rudders is installed on aerodynamic nozzles. The air rudders are controlled by turning a motorcycle-type steering wheel. Air rudders create a control moment in the nose area.
The change in roll and trim is carried out by moving the body weight of the navigator.OtherThe Hovercraft is equipped with life jackets, engine monitoring devices, a fuel tank, an electric starter, and an exhaust muffler.

CHARACTERISTICSMain dimensions