To improve interaction among crew members, specialists of Saint Petersburg University examined 2330 people by socionics methods, including students of St. Petersburg State University of Civil Aviation, Russian State Pedagogical University of A.I. Herzen, St. Petersburg State University of Culture and Arts; aircrews of airlines: "Syberia", "Atlant-Soyuz Airlines", "Ural Airlines", "Lukoylavia", "Gazpromavia", "Tomsk Avia", "Enimex" (Estonia), "Air Kazakhstan", "AZAL", "Kazair West", "RusAir" and others; air traffic controllers from Moscow, Khabarovsk, Rostov-on-Don, Novokuznetsk, Magadan, Norilsk, Saratov, Omsk, Kemerovo, New Urengoy, Syktyvkar, Nalchik, Ust-UTA, Kolpasevo, Pechora, Evenkii, Yakutia and Sakhalin; professors from almost all flight academies of Russia; delegates from Azerbaijan, Russia, Kazakhstan, Uzbekistan, Ukraine, and Estonia.