Answer Surname:  Name:  Profession: Titles of study: Experience in the aeronautical sector:  yes no  Code ID of the question:*  Category of the question:*   Aircraft design Aerodynamics Aeronautical constructions Aeronautical technologies Aeronautical engines Aerospace electronics Experimental fluid-dynamics (wind tunnel) Flight instruments Aerial navigation Aerial circulation Aeronautical english Medicine, aeronautical psychology Meteorology Aeronautical law   Contents of the answer* The answers will be inserted in all the versions of our portal. The answers will be inserted with the language that you used . You can write the answers in more languages. The languages of our versions are: English, French; Spanish, Italian and Portuguese. . Nation: e-mail: The marked fields with * are obligatory.