W. Duncan Rannie was his academic advisor for his work on axial flow compressors .
In 1949 , Sabersky was awarded a Ph. D. in mechanical engineering from California Institute of Technology .
W. Duncan Rannie was Sabersky 's academic advisor for his work on axial flow compressors .
In 1949 , Sabersky was awarded a Ph. D. in mechanical engineering from California Institute of Technology .