Boat on bottles. Drawing, description

PERSONAL TRANSPORT: GROUND, WATER, AIR
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Boat on bottles. Personal transport

Personal transport: land, water, air

Directory / Personal transport: land, water, air

An original vessel - a raft, a boat or a dinghy can be built from ordinary plastic bottles from fruit and mineral waters with a capacity of 1,5 to 2 liters. It is good to learn how to manage and row in calm water, go down the river, sail ...

Raft bottles can be taken different in length, but the same in diameter. Their number is calculated according to the law of Archimedes, based on the weight of passengers and cargo that you will take on board. If you weigh 50 kg, you will need 25 bottles of 2 liters and the same amount for the cargo and weight of the ship structure. In total, therefore, 50. This number is multiplied by the number of passengers.

We sew the body of the raft from two canvases. Any rubberized fabric will come in handy - children's oilcloth (sold in a pharmacy), an old bologna-type raincoat, silver fabric, a military raincoat. A simple tarpaulin or raincoat fabric smeared with rubber glue will also do. The fabrics are stitched with parallel seams with a distance between them equal to half the circumference of the bottle (see Fig.). These shell pipes are loaded with bottles in a checkerboard pattern for structural rigidity. And to make it even stronger, they use bottles of different lengths, placing them in adjacent strips neck to throat. Then tightly lace up the shell with a rope through the holes at the edges of the canvases. The rope is tightened with fabric at the bow and stern of the raft, securing the bottles inside the shell.

Bottle raft (click to enlarge)

Naturally, you first need to check the bottles for leaks by lowering them for a day with a wrapped cork in a barrel or bathroom and pressing down with a load. If water enters inside, it is necessary to smear the neck with rubber glue, tighten the cork again and immerse it in water again for a day.

Having made the shell, it is necessary to stiffen the structure with a frame assembled from old ski poles, aluminum tubes, wooden slats or parts of a cot (see fig.).

For each type of frame, it is necessary to make an expanded projection of the shell and sew ribbons with holes for lacing at the fold points. Remove interfering bottles when assembling.

On the raft, you can build the simplest straight or Bermuda sail, put the shvertsy and the rudder.

The speed of the raft due to hydraulic resistance will, of course, be small. A boat is faster, the hull of which is covered with a shell loaded with bottles. A Bermuda sail, shverttsy, and a rudder are also placed on it.

By reducing the wetted surface, the speed of the boat will naturally increase, and thanks to the keel, drift from the wind will also be avoided.

The rudder stock, tiller and feather are made according to the drawing. The screws are fixed on the transverse bar. The rise of the rudder blade and shverttsov is carried out manually with the help of rope cables passed through the blocks, the role of which will completely fit the coils from under the threads. Make the axes of rotation of the screws and the rudder blade from brass or copper wire.

The center of the mast should be placed closer to the bow relative to the geometric center of the boat, and the rail with the screws rotating on it between the fifth mast and the geometric center is closer to the mast. You will find their optimal position during sea trials by shifting the transverse bar with screws along the boat's bow.

Author: M.Dymov

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