As we have seen, the “underwater thing” in France during the time of Napoleon special did not develop, despite quite a rich flow of suggestions, starting with Robert Fulton. However, ironically, the submarine had to rescue the deposed Emperor from captivity on the island of St. Helena. The twists and turns of a real trace in the history of shipbuilding have left, but are curious as illustrations of the rapid “underwater currents”, which was accompanied by the development of new technology.
FROM THE “UNDERWATER FROG” TO THE SUBMARINES-“DINOSAURS”
Firm “Gather of waggonfabrik” (better known as just “goth”) at the end of the 1930s, released the first batch of ten-seat amphibious gliders DFS 230 was developed in the German Institute for the development of gliding (Deutches Forschungsanstalt für Segelflug, abbreviated DFS) under the direction of G. Jacobs. At the plant “goth” production of the DFS 230 was engaged in engineer A. Kalkert. Taking a series of DFS 230, Kalkert thought on creating a larger glider capable of carrying 20 soldiers with full equipment, and oversized cargo. He had to have a large hatch with size approximately equal to the cross section of the fuselage, and upper wing. The cargo hatch designer decided to make a hinged tail of the fuselage, as the nose of the glider could get damaged when landing (which often happens). This entailed the use of twin-boom tail. This layout was previously known, but was first applied to aircraft of this size.
A large part of the surface of the Earth is covered with water. Since ancient times people preferred to live near rivers, lakes, seas and oceans, learning the techniques of crossing water spaces. It was so even in the ancient world, as the formation of the merchant fleet, there are warships escorting the cargo ships.
Combat reconnaissance patrol vehicle BRDM-2. This year marks half a century of adopting the Soviet Army armored reconnaissance-patrol car BRDM-2, continues his military service today. The design of the BRDM-2 was started in 1959 in SLE engineering and experimental Department of the Gorky automobile plant. At this time there already have considerable experience in the creation of armored vehicles of light class: in the early 1950s was designed BTR-40 (factory index GAS-40), and in a few years – armored reconnaissance and patrol vehicle BRDM (factory index GAS-40П, letter “P” stands for floating). The latter, in accordance with the new operational-tactical views on the ways of warfare, could without training to overcome water obstacles and trenches, ditches and trenches on the battlefield. This contributed to a sealed wodospadu reinforces the case and additional pull-out rollers.
“…Earth was a dull rumble, and on the outskirts of the village of Sitno seemed huge armored vehicles unusual bright yellow color. Glistening tongues of shots, they were slowly sliding in our direction. “Rheinmetall”! — I guessed, remembering the silhouettes of German tanks in the album school. — Heavy gun seventy-five, eight hundred straight shot, the armor is forty…” Yes, the frontal armor of such a tank 45 mm gun of our BT is unlikely to take… But there was nowhere to retreat.
After the Japanese turned their 155-mm pseudologia “Mogami” in a normal heavy cruiser, armed with jasminewebcam, the fleet of the Country of the rising sun was in a curious position. Japan was the only major Maritime powers, not having to the beginning of the Second world war, no one modern light cruiser. All units of this class belonged to the older types 20 years; no restructuring and modernization could not make them full-fledged rivals to modern British, French and especially American ships of the same class.
The winter of 1940 was severe and snowy. So when in late February the first two experienced thirty went to the unprecedented thousands of kilometres of mileage on the route Kharkiv — Moscow, he became perhaps the most rigorous and impartial examiner and for new machines and their designers and producers. By the way, one of the tanks was himself Mikhail I. Koshkin, head of while the Department designed the T-34.
What only nicknames and designations were attributed to it (sometimes intentionally) that, until recently, a top-secret aircraft, “Lame Goblin”, “Ghost”, “Ghost”, “Rocket bat”, “Blue Mary”, “Nighthawk”, “Aurora”, CSIWRS, COSIRS, CSIRS, F-19, RF-19, A-19, AR-19, F-25. Now it is know as the F-117A “night hawk” (“Nighthawk”)… the History of the airplane has its roots in the beginning of 70-ies. Development of technological methods for creation of stealth aircraft / vehicles began in the United States, likely in the mid 60-ies. The next step in this direction was the attempt of building with application of the developed technology aircraft low level giveaways, i.e. demonstrators.
Drafting of a new heavy tank, much superior to commercially produced is-2 on armor protection began in accordance with the decree of GKO No. 5583 on 8 April 1944 and had its prehistory. A group of researchers of the Military Academy of mechanization and motorization in the name of Stalin, led by engineer-Colonel A. Zavialov studied in the field of tank battles the battle of Kursk, the nature of the damage caused by the shells hitting tanks. It turned out that not all parts of the tower and was amazed the same: more suffering frontal part, while the number of hits in the tower was the greatest. The result of these studies and was the project of a new tank.
For more than six months of heavy fighting on land, at sea and in the air. The Soviet warriors and the creators of the weapons – designers of tanks, guns, ships and planes – accumulated front-line experience. Started in 1942…