| 摘要 |
<p>This invention belongs to aeronautical engineering sphere, particularly to two and three seat airplanes of tourist class, which can be used besides for training and sanitary purposes as well. The achieved technical result of this invention - is the simplification of the airframe, reduction of weight, the simplification of the airplane control, the improvement of the cockpit vision, the opportunity of landing gear modification change. If the airplane is transformed to parking position - it is the minimizing of overall dimensions and the preservation of the essential members of the airframe against all possible mechanical damage during the transportation. The airplane containes the fuselage with the cockpit 1, power plant ( which includes engine 4 and tractor propeller 5 ), tricycle landing gear with nose 6 and main 7,8 landing gear legs, and the V - tail of standard lay - out. The fuselage framework consists of four flat frames 10,11,12 and 13, lower load - bearing platform 14, four constrained beams 15,16,17 and 18, main frame 20 and fuselage tube 19. The constrained beams are rigidly connected to the fuselage tube 19 by the main frame 20 at its corners, as well as to the back flat frame 13, also at its corners. Each of the outboard wing panels 22 is fulfilled turning around on its hing unit and can be folded backward along the airplane axis. The load - bearing platform 14 is equipped with the spring attachment points 25 and 26 of the main landing gear legs 7 and 8 at the airplane configuration accordingly with tailwheel unit and nose gear leg. The wing strut 9 attachment point to the wing 22 spar 23 lies within the range 0,3 DIVIDED 0,4 of wing semispan. <IMAGE></p> |
