This project began with specification E6/41, dated November 1941 In her Ministry of aviation industry of great Britain has offered the firm “de Havilland air craft company” to explore the issues of creating a jet fighter and engine for it. By that time, the company proactively developed an experimental twin-boom DH’s car.99. It was a single-engine monoplane of all-metal construction with a tricycle landing gear with nose wheel. The development of the engine in April 1941 did the firm “Halford”, headed by Frank Halford, simplifying the design of the turbojet engine with centrifugal compressor and through the location of the combustion chamber between the compressor and the turbine.
REACTIVE “FRAME” DE-HAVILLAND
Familiar to many hams, the situation: once the scheme is built, configured, but… to Squeeze it into some kind of “soap” not want to, but new to “diamond” the right frame there is neither time, nor forces. Had to find a way out of similar situations and me while in one of the publications, “Model construction” did not find a clue. It turns out that enterprising and slopestyle Siberians, which wrote the log, began the production of fine gift boxes of foil materials commonly used in the manufacture of printed circuit boards. Moreover, the simplest technology: the workpiece-scan in the field of future folds (from the base-insulator), they made cuts, and after giving it a box shape was probabaly foil joints.
Greenhouses, of course, not a fad or fashion, and suffered many a necessity. After all, these buildings, covering a plot of land of glass or plastic, allow * not only early to plant the seedlings in the ground, but also (no less importantly) to protect emerging plants from acid rain or any kind of “evil herbivore”. Special demand from the population use collapsible greenhouses. However, produced by the domestic industry options mostly far from perfect, inconvenient and usually prohibitively expensive. Here and master gardeners-gardeners in their plots all sorts of designs from scrap materials where lead foil, a nail, a Board homegrown clip. Construction work flimsy, “perniciously” not withstand even one season of operation. But… Every spring the people with the tenacity of a tight dried-up film (the other being at hand at that time somehow is not) skeletons of their teplichku-greenhouses.
Gradually accelerates since the beginning of the “great war” in Europe, the US military machine required a constant feeding of “raw materials” — new projects and orders. Moreover, fighting constantly threw up new and new reasons. After not too successful performance in Norway and followed the fall of France, the evacuation of the British from Dunkirk, it became clear that any fleet in dire need of strong air cover, to ensure that staff pre-war anti-aircraft guns could not. The Americans wanted to solve the problem fundamentally, creating a six-inch anti-aircraft gun, arming her cruiser. It is clear that the new super-aircraft guns required a high rate of fire and good mobility, not to mention the obligatory fire control systems. “Project” has drawn many more millions and on for months — perfect for the military-industrial complex.
Furniture manufacturer of plain (uncoated ahah!), the DSP completes its finish. Although this is a simple, but important step, which largely determines the appearance of the finished product. For finishing can be used adhesive tape, textured paper, cloth (linen, cotton) and veneer. The veneer self-adhesive film the most simple. The workpiece is cleaned from dust. Cut a strip of “adhesive” with margins, 5-7 mm; it remove the protective paper and film is superimposed on the detail and smoothed to remove air with a rag or a rubber roller.
The designers of the Department of track-laying tractors (known as the Department of “200”) of the Kharkiv locomotive plant them. The Komintern (KhPZ) built in 1936 heavy artillery tractor “Voroshilovets” on the basis of the original, but irrational in the scheme, laborious to manufacture and maintain chassis. Later, in the design process of the T-34, they came to the conclusion that because of the proximity of the traction-weights, power, and mobility it is advisable to develop heavy trucks based on the chassis of a modern medium tanks. This unification was beneficial and production.
