With the end of the Civil war in Russia and the formation of the Soviet Union began intensive development of commercial aviation. July 15, 1923, opened the first regular air line Moscow – Nizhny Novgorod. For three and a half months by air it was transported by 270 people. In the following year there was a line Odessa – Kharkov, Moscow – Kharkov, and others. The development of Civil aviation is objectively required the creation of a passenger aircraft. One of the developers of passenger “air carriers” was the aircraft factory No. 1, former “Dux”, where in 1925, the engineering team headed by H. H. Polikarpov, and A. A. Semenov established a five-plane PM-1.
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In recent years the streets and roads of our country are increasingly the miniature machine, in appearance something of a cross between a kid’s scooter, a moped and a scooter. Their drivers are surprisingly deftly maneuver in a city stream, “not getting tangled in the legs” at large, “real” car and motorbike and however not at all inferior to them in speed.
Young machine operators Lotoshinskiy eight-year school, in the Novosibirsk region, from various junk parts built a real pumping station. All summer she poured water on the area school team, and the result was not long in coming. The yield on irrigated land was much higher than before.
The sky is cloudless and warm. In this weather a nice walk around the neighborhood, and even better to ride. You open the door and take out with the help of adults out of the apartment… the car, on the street I put the car on four wheels.
The simultaneous launching of multiple model rocket engines presents a great challenge for modelers. Existing methods of ignition have several disadvantages; Perekrest does not allow you to launch multiple missiles for a short time (as the products of combustion clogging the tubes, burn the ends, etc.), as currently practiced method of ignition with the banks is a danger of explosion engines because of the filling of channel MRD pyrotechnic compositions.
Last spring I made myself water skiing. But to slip on them could rarely, as the role of the tug performed… a motorcycle with a sidecar. The construction of special boats would require a certain cost, powerful engines, and most importantly – time.
This machine is not only powerful and roomy I was able to fairly compactly arrange all of its aggregates, making the frame left plenty of room for the passengers and even any cargo, including bulk or lengthy — it is a body of 250 kg, the trailer for 1 ton and wheeled console.
The idea of creating our “Donkey” arose almost by accident. Once the chefs gave us a written off motorcycle To the 125 without wheels. Original spare wheels we had, we decided on the first case to fit available handy motorolleri — with hubs and discs from the T-200.
Existing models of walkers have several major disadvantages: the speed of these machines is usually not more than 8-10 km/h; they move irregularly or are experiencing vibrations in the vertical plane; walking mechanisms are mutually unstable.
With the proposal of developing a new Intercontinental ballistic missile operating on liquid oxygen and kerosene, and in 1958 was made by the Council of Chief designers. While its weight was not to exceed 100 tons, which is almost three times less than the starting mass of the rocket R-7 – the famous “seven”.