The biplane I-15 upper wing type “Chaika” was a further development of fighter I-5. The first flight of an aircraft equipped with the engine SGR-1820 F-Z of the company “Wright-Cyclone”, performed by V. Chkalov in 1934, First production vehicles were completed with 480-horsepower engine, M-22, and since 1937 — the M-25 takeoff power 630 HP, the Aircraft was constantly improved. His first option was the I-15bis. different upper wing, located on the scheme parasol.
THE DESTROYER “DARING”
By the beginning of world war II, Soviet destroyers and leaders in its combat performance characteristics superior to the best ships of the same class built in other countries. Destroyers types of “Angry” and “Watchdog” and leader of the “Leningrad” was armed with 130-mm guns, three -, and four torpedo tubes, and twin anti-aircraft machine-guns had Paravan guardians carried on Board depth charges and mines boom. Power of artillery and volley firing range, these ships had a significant advantage over the latest at the time of the German destroyers series and 2 American style “Bristol”.TUBULAR SHOVEL
Where conventional shovel passes in front of dense soil, this unusual diggers enter the ground like a knife through butter, though the effort inform her foot is almost the same. The secret lies not only in originality of design, but also the new technology of digging remotely resembling a job with a hand drill.PYRAMID FOR CUCUMBERS
It is believed that when the whip cucumber shoots have the ability to curl up like vines, the harvest increased, and deprived of contact with the ground the cucumbers are better developed and preserved. A pyramid of soil-filled tires and the cords tied to stakes driven into the middle of the pole — ideal for Read more…
PHONE ON YOUR FINGER
Nokia FIT – a concept phone that can be worn on the finger. Made from soft silicone and flexible rubber, the phone is fully waterproof and supports voice communication and SMS. You can take it with you to the pool and enjoy the fun even if you are expecting an important call.
THE DOUBLE-SPRING BALANCE
All familiar household spring scales for weighing products, mining, fishing, hunter. This simple device is designed to weight up to 10 kg. Mu and if you need to weigh a load more heavy? Take your neighbors the same spring balance and act two at the same time: the sum of them is the desired weight. Read more…
“BOUZOUKI” IN “DIPLOMAT”
Modern models of air fight as a championship class and “Junior” are in many respects similar in construction and, accordingly, on the concept. They completely satisfy the “fighters” requirements and only differ in the manufacturing technology.
AND COT AND TABLE
To lengthen the crib grown daughters, made a back flip. It turned out — a double benefit: in the daytime daughter is using her piece as a table for drawing, sculpting. V. SADAKO, Donetsk
CUTS FRICTION
Many probably had to watch as the metal is heated during processing it on an emery wheel. The phenomenon is harmful: heating “releases” hardened metal. Is it possible to turn it to their advantage? Well, for example, to cut metal? For the experimental verification of the idea took only an hour and a half I’ve ground off the teeth from an old circular saw blade and secured the tool (smooth disc) is grinding in elektrotochilo.BACK TO THE JIGSAW…
This device allows you to consistently perform those operations which are performed simultaneously jigsaws, tension and clamp the blade. It is especially difficult to learn this kids — those who are just starting to learn this tool. The essence of the device in the following. On that machine, the jigsaw is pivotally secured the strap Read more…










