Producing the Weightless State in Jet Aircraft

Producing the Weightless State in Jet Aircraft. Simple functions were used for computing the most interesting and important characteristics of the parabolic flights. The results, based upon certain flying characteristics of the T-33, F-94C, and F-104 in subsonic and transsonic flight, are in good agreement with the data obtained for the first two aircraft types during actual zero-gravity maneuvers. Certain flying safety hazards were noticed in the T-33 but remedied through appropriate measures. The F-94C Starfire proved to be superior to the T-33 with regard to safety and duration of the weightless state. If the F-104 would be made available for aeromedical research, weightlessness could be produced for more than one minute.