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CESAR focuses on small-size commercial aircraft providing manufacturers with an enhanced ability needed to become fully competitive in the world market. The objective is to build up a new development concept for this aircraft category and to improve selected technologies enabling a significant reduction of the time-to-market and lowering the overall development, operation and maintenance costs, while considering safety, passenger comfort and environmental impact. The CESAR aspires to provide technologies and knowledge for advanced wing, competitive and environmentally acceptable propulsion unit and new technologies for selected aircraft systems to reduce aircraft operating costs and improve safety. 1. WIND TUNNEL MODEL The AC2 model was built within the CESAR project according to the geometric and aerodynamic specifications for the CESAR Aircraft 2 turbulent wing and high lift devices. The AC2 model is designed to collect data for the operative envelope of the aircraft (for a clean configuration) in the INCAS trisonic wind tunnel. 2. MODEL DESCRIPTION The model scale was established at ks = 0.06. The AC2 model is designed for measurements of aerodynamic forces and moments by using the 2.00 MK XXVI TASK six components internal strain gauge balance. The AC2 model is built in a modular design that allows easy installation in INCAS trisonic wind tunnel on an existing U-shaped sting of a lenticular cross section. The sting is shown in figure 1 below:

AC2 Wind Tunnel Model