IMPACT ASSESSMENT SCHEME "SCREW THE RING" ON TAKEOFF CHARACTERISTICS OF THE AIRCRAFT

Air transport is the fastest means of transportation. However, for example, doubling cruising speed of flight increases its average ground speed only 10-15%. This is because a lot of time spent on such regimes as takeoff, landing, maneuvering on the ground, and so on.Since the bulk of air traffic is carried away from the 300 to 1000 km, take off and landing can be up to 50% of the length of the flight. So one of the ways to solve pressing tasks outlined is to build an aircraft that combines quality, speed horizontal flight aircraft and helicopters take off and landing.For the first time the technique of calculating aerodynamic characteristics of the aircraft vertical takeoff and landing small size for rational choice of its parameters in order to achieve the required performance testing.We consider a model airplane with rotary screws at the ends of the wings. This combination provides the benefits of a helicopter, namely the possibility of vertical takeoff and landing and hovering at a certain height in the air, with the benefits of the plane - much greater speed and flight range.The main problem of this aircraft is to ensure the stability and controllability during mode transition from vertical to horizontal flight and vice versa.To determine the required parameters propulsion Comparative calculations generated by aircraft with different layout schemes. Research of mass characteristics to determine the advantages and disadvantages of each scheme.The materials performed the study, the results of calculations of aerodynamic characteristics of the designed aircraft vertical takeoff and landing at different tilt angles of attack and thrust vector and at a speed of zero to switch to horizontal flight.