To maximize flight time Svobodnaya model championship class, usually try to use large angles of attack. However, flying often becomes unstable due to the disruption of flow from the wing. To address this shortcoming, Leningrad Antonov an S. Matveev developed and tested in practice a system of slotted wing.THE DRAG — SLED
Designers snowmobiles often use the brake — it’s called scraping and is a any lever, bury in the present. Such a device will be useful on a conventional children’s sleds. It will be protected against injury, to prevent the assaults on obstacles or other capsized the sled. For “on the front strap can be set Read more…
Now many are fond of underwater hunting. And luck are often determined not only by the perfection of the gun or the knowledge of the habits of the fish, but also the opportunity to see her in burrows under the driftwood, under the eaves, steep banks, thick algae. But to see anything in these shelters, even on a bright Sunny day is almost impossible, because the eyes adapt to the sudden light for a time greater than the delay time of the dense breath of the hunter. Only an underwater flashlight, but the industry does not produce such.
Oven-stove for baths, which will be discussed below, the list was designed and built by me. Prior to this was construction of a camp bath, “badger valley” with a simple stove type samovar and another bath Villa with a pretty good stove, which served as a prototype for this, which I call “the dream of the bathers”.
The owners of private houses or villas are often faced with the need to prepare concrete solutions. Mix in certain proportions water, gravel and cement — a simple matter, but very time-consuming, requiring considerable time and physical strength. And if you want to carry large volumes, the process of preparation of concrete or mortar becomes hard work.
Electric jigsaws are of type AL-1, AL-2, produced by Cheboksary electric plant, the range of work performed is very limited. For example, due to the design features of the jig saw it is impossible to work with a wide sheet of plywood or plastic. And cutting tool quickly fails: the files are often broken or torn.
This call is present in many emails of designers bikes. “Somehow, browsing in the library of old magazines “M-K”, I came across a design velocipede with manual transmission. From that day, I had only one thought — to do”, — says Sergey Titarenko from the city of Nevinnomyssk in Stavropol region.
These sleds, perhaps, the most simple design, gather them literally in half an hour. For the manufacture of snegopada will need straight grained boards 30 mm thick (200X1200); two strips — one section 50X60 mm and a length of 560 mm, and the other 30X50 mm and a length of 560 mm, and a sheet of plywood with a thickness of 3-4 mm (620X1240).