I. Introduction
Aircraft instrumentation is mainly composed of average measurement sensors indicating the mean velocity, the mean altitude the mean exterior temperature and so on, of the aircraft. However, the localized values of velocity and wall shear stress on the plane is of great interest, particularly for flow control applications. Flow control aims at locally manipulating the turbulent flow field to induce favorable changes in the main performances such as decreasing the drag or the noise radiation. Controlling turbulence then requires the measurement of its localized properties and the today instrumentation of aircraft is not sufficient. A network of small sensors, placed strategically on the plane, could give important information on the interaction of the main flow field with the structure.