Software Typology of the software:*   Technical drawing Structural calculation Aerodynamic calculation Calculation of the airplane performances Calculation of the airplane balance Virtual wind tunnels Aerial navigation Other Producer:   License of the software:*   Freeware Shareware Shareware 7 days Shareware 15 days Shareware 30 days Shareware 90 days Demo Demo 7 days Demo 15 days Demo 30 days Demo 90 days Beta Name of the software:*    Language of the software:*  Description of the software The descriptions will be inserted in all the versions of our portal. The descriptions will be inserted with the language that you used . You can write the descriptions in more languages. The languages of our versions are: English, French; Spanish, Italian and Portuguese. . Dimension of the software in Mbyte: Address of the Web where to effect the download:* The marked fields with * are obligatory.