Incipient- and developed-spin and recovery characteristics of a modern high-speed fighter design with low aspect ratio were investigated by dynamic model tests. A 1/7-scale rdiocontrolled model was tested by drop tests from a helicopter. Several 1/25-scale models with various configuration changes were tested in the Langley 20-foot free-spinning tunnel. Model results indicated that generally it would be difficult to obtain a developed spin with a corresponding airplane and that either ...
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