Ship on wheels. Drawing, description

PERSONAL TRANSPORT: GROUND, WATER, AIR
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Ship on wheels. Personal transport

Personal transport: land, water, air

Directory / Personal transport: land, water, air

An inventor from the Moscow region, V. Podorvanov, developed a new propulsion system for a ship, capable of walking on land. Air cushion and screens, hydrofoils and gliders - as soon as they try to increase the speed of movement on water. In most cases, the goal is achieved by increasing the cost of energy, fuel. Some of the proposed vehicles are not suitable for shallow water, complicating the design and operation of ships.

Somehow, back in the fifties, V. Podorvanov observed a curious picture. Sitting on the bank of the river, he managed to spin a small log so that it rolled on the surface of the water, and while spinning, it almost completely crawled out. A buoyant force acted on him. And if you try with a metal cylinder?

Undermined conducted tests at the Military Engineering Academy, where he then served, then, for many years, at the Central Research Institute. Krylov. He established that with an increase in the speed of movement, the hydrodynamic resistance of a freely rolling cylinder remains close to constant, almost without increasing. Meanwhile, with all other types of movement on water, the resistance increases sharply with acceleration (in a quadratic and higher dependence).

When driving at high speed on waves, shock loads are also reduced compared to other types of movement, since the wheels seem to slide along the crests of the waves. This means that if we put the ship not on wings, but on wheels freely rotating on axles, it will not only easily roll through shallow water, but also through waves (excluding, of course, a strong storm). On wheels, he will crawl out onto the shore, no ports will be needed And excitement will not frighten him.

Ship on wheels

So, Podorvanov proposes to install the vessel on four cylinders. The hull is entirely raised above the water and does not touch its surface, although, of course, it is buoyant and has a streamlined shape. Thrust can be generated by either a jet engine or a propeller. The axles of the wheels are on shock absorbers. Having developed sufficient speed, first accelerating on the shore or in shallow water, it will come out of the water and stand on wheels (by the way, they can be lifting: the ship will accelerate on the water, and then, lowering the wheels, will rise on them).

... The ship rolls on the water, as if on a solid road. Moreover, with great speed (Podorvanov calculated - up to 200 km / h), at some moments it even breaks away from the water, jumping over it like a pebble. Passengers, however, will hardly notice these jumps. The stabilizers installed on the vessel and shock absorbers on the wheels will also contribute to reducing vibrations.

At high speeds or in waves, an ordinary ship burrows into the water either bow or stern, while the resistance to movement increases sharply. And a ship on wheels will ricochet off the waves, so that not a single deck will be overwhelmed.

Testing models of the ship, Podorvanov established an interesting fact: it turns out that if cylindrical protrusions are made on the wheels at the ends of the rims, then the lifting force pushing them out of the water increases. The protrusions, entering the water, form powerful jets that increase the lifting force and, as it were, additionally spin the wheels.

The ship model accelerated on land, then rolled along the water, over the waves, in shallow water. The experiments fully confirmed the theoretical calculations of the author. Now other, larger-scale, full-scale tests on natural samples of ships of this type are required.

Author: O. Serdyukov

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