INCAS 2.5D mid-scale model

In the design of the wing airfoils for transport aircraft, it is necessary to meet different requirements for distinct phases of flight, namely the cruise flight on one side and the take-off and landing on the other side.The disagreement between the requirements of the cruise flight and those of landing and especially of take-off can be solved by using high-lift systems as particular profiles at a certain offset of the main wing.Basically, high-lift configurations consisting of several individual elements can provide the best lift coefficient.Yet, such complex systems, when compatible with the cruise profile, produce a large increase in the weight of the wing.In this respect the number of devices is not larger than five in practice.In the last years the efforts in high-lift aerodynamics have targeted to reach similar lift coefficients for less complex systems.In the meantime for transport aircraft of all sizes the state of the art is to use only a flap and a slat as high lift devices.The high-lift model used within this project was designed and optimized as a three element configuration.