Not for the first ten years there is a class of experimental aircraft. It would seem that this time is sufficient to clearly determine the best scheme inflected wing”, the most favorable profiles and types of balancing. But every new competitions at the Tushino airfield, gathering creative enthusiasts from all over the country, convinced that the search is not yet complete. And it is not surprising to achieve stable flight model “flying wing” in contrast to the classical devices are very difficult. Why so few “highs” in the tables of experimental results, although at first glance the benefits seem obvious tailless.
Today we introduce you to one of the latest designs of Russian Modeler Yuri Petrov. In General is not a new scheme Tierney experimental model with a straight wing sweep, and a tractor propeller with meticulous fine-tuning allowed us to achieve the main thing — stability results of operations.
The fuselage Tierney consists of two parts — the front, the power, and the tail boom. The Foundation of the first pylon, on it are mounted all the elements of the fuselage. It is made of plywood with a thickness of 8 mm, after treatment in the blank Windows of relief plastered on both sides millimeter plywood. Then the workpiece is filing the contour and glue fixed pine slats with a cross section of 10X4 mm — the longerons of the tail boom. She, along with the lower part of the pole is sheathed in a dense balsa with thickness of 3 mm. At the rear of the beams installed the balsa keel with a slight adjustment of the rudder. In the upper part of the pylon is glued into the two pin mounting wing panels. Short front (auxiliary) — beech Ø 4 mm; the back that takes all the load from the bend of the wing, the off — cut steel wire grade optical fiber Ø 5 mm. Before gluing the pylon he bent to put on his consoles transverse V was equal to 8°, then the middle of the wrapped thread, impregnated with epoxy resin, on the resin pin is tightly inserted into the corresponding hole of the pylon.