Design

The question posed in the title, still have not found a final resolution. The first experiments to replace the traditional sail is a vertical wing, by profiling and design friends of the aircraft, did not bring the expected result. The fact that hundreds of years of its existence, the sail turned into a beautiful multi-device for conversion of wind power into thrust, informing the movement of the ship or the Buer. And it works quite effectively, and acute course, with strong and weak wind, his smooth flow and in the squalls. In addition, the sail is a great tool that allows the helmsman to accurately adjust it in accordance with the selected rate and direction of the wind, its force arising from the roll of a sailboat and other motion parameters.

29.09.2012 G. has a new plane the boat under the designation L-31 and “New Faith.” Now the aircraft has been tested in acquitting all the calculations and hopes. Manufactured flying boat in the Samara aviation sportunterricht club under the direction of G. Annenkovo. L-31 means: the triple boat with a single engine (Rotах-912).

AIRPLANE FOR TWO. Most of aircraft fans, began his career in aviation with the construction of a single aircraft in the end come to the conclusion that such machines are extremely limited – to fly them only in calm weather; two-stroke engine is reliable, that does not allow the pilot to depart from the aerodrome; any significant cargo on such aircraft can’t be transported, and for learning single aircraft is not suitable.

Participants and guests of the all-Union review-competition of self-made ATVs in Arkhangelsk were surprised to find that in the city there is a whole Amateur “industry” for the manufacture of such machines on the low-pressure tires. And the scale of it so large that it can only be explained by a rare combination of factors such as the availability of the industrial base, proximity to nature with its roadless spaces and a large number of enthusiasts. Characteristically, acquire pneumatic-tired machines and townspeople, and villagers: for travel on fishing, hunting, mushrooms and berries. Consider also that for some it is the only vehicle suitable to local conditions.

Historians say that the sail appeared on land about four thousand years ago! Fiction? No, the reality is — there is documentary evidence.

This is a hovercraft I built for several years. Engine – from VAZ-2108 with a capacity of 74 HP, Case – fiberglass, fiberglass epoxy resin, is made of the type “sandwich” with the Styrofoam plates. The structure weight was about 370 kg. propeller – propelling three-bladed, with a diameter of sweeping the surface 1700 mm and variable in place of step. There are still two the blower for pressurization of the airbag. Skirt the cushions are made from French awning waterproof material with a density of 600 g/m².

My buddy with a passenger all-terrain vehicle UAZ Hunter and a cargo car of the raised passableness, the GAZ-66, popularly known as “shishiga”, has designed and manufactured a single-axle trailer suitable for both machines. Specifications and dimensions of their cars, oddly enough, close, in addition to speed, however, when riding with the trailer speed is still limited. Of course, buddy could buy a ready-made trailer (it probably would have been even cheaper), but it took him not quite normal, what is not for sale.

Perhaps, in the memories of every adult baby winter fun be sure to contact the sled. And it’s safe to say that in a rare home today will not meet them: they still serve the kids and adults — the baby in daycare to take a little weight out of the house or building to deliver in the snow.