The question posed in the title, still have not found a final resolution. The first experiments to replace the traditional sail is a vertical wing, by profiling and design friends of the aircraft, did not bring the expected result. The fact that hundreds of years of its existence, the sail turned into a beautiful multi-device for conversion of wind power into thrust, informing the movement of the ship or the Buer. And it works quite effectively, and acute course, with strong and weak wind, his smooth flow and in the squalls. In addition, the sail is a great tool that allows the helmsman to accurately adjust it in accordance with the selected rate and direction of the wind, its force arising from the roll of a sailboat and other motion parameters.GENTLE HAMMER
The surface will remain perfect, if the wrong nail at nastilke a parquet or parquet boards remove with a hammer glued to it with glue of type “Moment” leather lining.
Offer for fans of DIY table homemade drill press using hand drill. On a solid base is mounted a hollow stand-tube, movably installed inside the stock. On the one hand, he sliced the rack to drive the vertical feed, and with another selected area for connection of the bracket with the guide bar through the longitudinal groove of the rack. On the bracket mounted hand drill and the motor. The drive from the drill motor is belt drive. Vertical supply node provides a mechanism assembled in a separate housing. The external dimensions of the machine depend on the chosen length of the strut and the base; the vertical stroke serves for the size — 100 mm.
Drivers know: after long Parking of the car in the cold to start the engine. At low temperatures freeze even antifreeze! And those who use it for cooling water and drains it at night, lose the opportunity to fill the radiator with hot water — burst frozen in the cold of the cylinder head and the block, and the boiling water almost immediately freezes, forming ice plugs.
It is paradoxical but true: we actively care about the condition of the walls of his apartment, much less pay attention to the most loaded elements of the house — ka doors and Windows. Perhaps that will drip oil ka loop once or twice a year so as not to creak, Yes, go paint on plasty and panels. But time goes on and the door begins to scrape on the floor, warps, between it and the frame cracks are formed. And one day you come home and can’t get to the apartment: the door is jammed. It is time to remember the ways of hacking described in the recently read the detective, or in a vain effort to shout “open sesame!”.
Somehow I came across the article “Vitamin Jack” (“M-K” № 7, 1985), where the author writes that in the procurement of juices crushes apples with a wooden mallet in a small barrel. I found unconvincing his argument in favor of this technology — especially manual.
29.09.2012 G. has a new plane the boat under the designation L-31 and “New Faith.” Now the aircraft has been tested in acquitting all the calculations and hopes. Manufactured flying boat in the Samara aviation sportunterricht club under the direction of G. Annenkovo. L-31 means: the triple boat with a single engine (Rotах-912).
AIRPLANE FOR TWO. Most of aircraft fans, began his career in aviation with the construction of a single aircraft in the end come to the conclusion that such machines are extremely limited – to fly them only in calm weather; two-stroke engine is reliable, that does not allow the pilot to depart from the aerodrome; any significant cargo on such aircraft can’t be transported, and for learning single aircraft is not suitable.
His first motomizu A. Migranov built in 1981. As a prototype use if they had allowed themselves the development of his friend Peter Koynova. Although much was done differently:
It never hurts to have your own car, in addition to the cigarette lighter socket, and even first connector, adapted to USB or even mini USB. Such adapters are useful in many cases, for example, to power peripheral equipment of PC, charging mobile phones, video recorders of events and everything is designed under USB power. This is quite possible.