In addition to the rather exotic projects, such as, for example, a huge steam-powered submarines for action with the Navy type “K”, or underwater monitors of the “M”, the British Navy continued to “correct” the development of a universal underwater “Admiralty” boats long range, launched in 1908, a type “D”. We remember that the most successful boats made basically the severity of the First world war, were three series of the type “E”, built in the beginning of the war until its end. However, the designers did not intend to stop there.
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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.
The development of L-29 was started in 1955, took the initiative by a group of engineers from the Research and test flight Institute of Czechoslovakia. First flight of L-29 made the April 5, 1959 L-29 Czechoslovak is the first serial jet car. In 1961, by decision of the Soviet government for political reasons he was selected as the main training aircraft of the countries-participants of the Warsaw Treaty Organization. This decision was not fair – L-29 was lost to the Yak-30 in all the parameters was heavier on 765 kg had a 30% lower thrust-to-weight, 33% less range and less speed.
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.
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”.
Little micro-car “Buddy” machine… for kids. It was created in a laboratory experimental simulation and design Club for young technicians Novosibirsk Akademgorodok. Despite its small size, it all like a real car: engine, transmission, driveshaft, closed rear axle with a differential and other components.
Such a transformation that my construction readily admits. Moreover, the possibility of replacement ski floats, making it easy to turn a land car in “waterfowl”. Flat “breaking” the frame of the snowmobile hromansilevyh welded from pipes. The front part is a double cabin crew back — powerplant based on the engine of the motorcycle “Dnepr”. The cabin has a roll cage and aluminum siding.
The convenience of wireless remote control (RC) is undeniable. You can use them, without getting up, and the most interesting channel to enable, and the hardware on it to adjust according to the individual characteristics of perception.
In the family of PEUGEOT has a car class. Your first car, Armand Peugeot in collaboration with Leon serpolle built in the nineteenth century — it was heavy and bulky three-wheeled carriage with a steam engine, which has not successfully exhibited at the world exhibition in Paris in 1889. And who knows what would be in the future fate of Armand Peugeot, the owner of a small Bicycle factory in Beaulieu, if he had not met at the exhibition with Emile Levasseur and Gottlieb Daimler.
The individual system are two dorsal scuba gear of any type. The main materials are fiberglass and aluminum alloys. Widely used aluminum alloy D16, soft, seasoned, in the form of plates and moulded profiles. Made from this material stringers, beams, frames, individual components and subassemblies. Was also used steel of different brands, it made small parts and fasteners. For the glazing of the cabin applied in organic glass. Insulating and sealing elements made from PTFE and rubber of different brands. As the filler has been widely used foam stamps “PS-4”.