Influence of the use of electric drive in a glider on its aerodynamic parameters on the example of GP-15 glider

In gliding aviation, a lot of attention is paid to the achievement of aerodynamic parameters due to the production of the idea of sailplane flights is a flight of a sailplane without partial energy supplied to stay in the air, and using favorable conditions, e.g. ascending thermal movements of the air. Only during take-off is a virtual external connection, i.e. an aerial winch or a towing plane, required. It is very convenient to implement the tests from the drive level in the tests and submerged during take-off. In addition, landings when using the described element are to be expected due to additional sources of aerodynamic drag calculated in this study and the option of immediate use of the propulsion. It is also a step towards facilitating access to flying for a wider group of people due to the cost of travel with take-off processes, also to experience the safety level of sailplane by providing propulsion at critical moments of the flight.