Tender For supply of non destractive testing of metallic by acoustic emission testing , aerodynamic analysis of a fixed wing styrofoam material model or grab 103 using a smoke tunnel , effect of wing shape (symmetrical, asymmetrical and delta wing) and angle of attack on lift & drag , visualization flow of symmetrical, asymmetrical & simple shape in smoke tunnel , impact of fuselage shape on drag and stability of small aircraft , diy subsonic wind tunnel , smoke tunnel calibration and data aquisition