Sweden was and remains one of the few countries in the world, able to create a world-class aircraft. Combat aircraft of that Scandinavian countries have always been some kind of “twist”, they should not be confused with similar machines from other countries. In a world quite similar to each other planes, but similar to the Swedish fighter, perhaps, could not be found. The explanation, in my opinion, is simple: since its inception in the late 1930-ies the Swedish aviation industry is not copied already built foreign aircraft, designed and built their own samples. And the fact that in a short time the Scandinavian engineers to develop could not (for example, modern jet engines and electronic equipment) purchased abroad, including a license for their production. The result of this competent technical policy was the fact that in the postwar “jet race” Sweden is practically not inferior to the world’s leading aviation powers, and in some cases even ahead of them.SWEDISH SPEAR
Sweden was and remains one of the few countries in the world, able to create a world-class aircraft. Combat aircraft of that Scandinavian countries have always been some kind of “twist”, they should not be confused with similar machines from other countries. In a world quite similar to each other planes, but similar to the Swedish fighter, perhaps, could not be found. The explanation, in my opinion, is simple: since its inception in the late 1930-ies the Swedish aviation industry is not copied already built foreign aircraft, designed and built their own samples. And the fact that in a short time the Scandinavian engineers to develop could not (for example, modern jet engines and electronic equipment) purchased abroad, including a license for their production. The result of this competent technical policy was the fact that in the postwar “jet race” Sweden is practically not inferior to the world’s leading aviation powers, and in some cases even ahead of them.
Shelf I made for my bathroom, not much different from many similar, but due to some features of its design creates the impression that the shelves in the bathroom as it does not exist. The secret is that the size of the mirrored doors is slightly larger than the dimensions of the locker.
Cut the correct glass circle is not so simple. Usually on the sheet steklografom put the outline of future disk, and then not spend a dozen tangents. The resulting polyhedron is brought to the circle by a fine-grained whetstone. It is much easier to make this work with a homemade tool. Its basis is the caliper. The inner leg is clipped and hard solder attach pad. After Stripping through her and the leg is drilled through hole. In the resulting plug is inserted carbide roller from a standard glass cutter. As the axis is used, the bolt of suitable diameter. On the anchor leg of the caliper push the plastic mold. And the last thing you need to do is the metal disc Ø 30 mm with naturalnym in its center a recess with a glued to it with rubber gasket.
The second of may 1952 from London Heathrow airport and went to the first commercial flight to Johannesburg, the world’s first passenger jet airliner “Comet” created by the British firm “De Hevilend”. Subsequent accidents and disasters that accompanied its operation, did not stop the desire of the world’s leading aviation powers to progress and the creation of new reactive machines.
One of the most critical components of the machines crawler — tanks, all-terrain vehicles, armored personnel carriers, tractors, trucks is the suspension, particularly caterpillars. Their tapes, as you know, is assembled from separate parts — the tracks connected by fingers. Each track has a grooved surface — lugs deliver reliable traction. On the side of the track facing the rollers, is guide comb, preventing a descent of rollers with treadmill tracks the motion of the model, especially during turns.
The principle of operation of this device for cutting, or rather, cutting out of teeth on the blades for the hacksaw is simple. Its main part is a wheel with a cage, fortified it with four screws. On the surface of the cage is cut two or three strands of outer thread with a pitch, height and profile of the future teeth of a saw. Extreme thread thread partly removed with a cutter, or a chisel and chopped off the right angle: the end will perform the role of a punch. To increase the impact force to the flywheel attached two opposed.
