This project is the following part of a previous thesis about the design, development and implementation of a data acquisition system: "Development of an Integrated Flight Test Instrumentation System for Ultra Light Machines" called Mnemosine by Alberto Rolando. Participating in the improvement of the part Urania. Once the new design was decided and the implementation was done, the calibration of the new Pitot - boom has become a critical part where the pressure sensors, temperature sensor and the Pitot tube has been analyzed and tested in a wind tunnel. In this document the pre-documentation for the experimental test, the results and conclusions including the elaboration of a program in Matlab in order to calculate those important magnitudes and to show in an easier way all the results is presented.