a wind tunnel is used to experimentally determine the lift force L and drag force D on a scale model of an aircraft. the bracket supporting the aircraft is fitted with an axial spring with stiffness k= 0.125 N/mm and a torsional spring with stiffness kt=50 NM/rad. by measuring the deflections of these springs during a test, the forces L and D may be determined. If the geometry occurs when there is no airflow. determine L and D if delta= 2.51mm and theta is 1.06 degrees are measured