1.

Technical Paper
Technical Paper
1. Investigation of Advanced Counterrotation Blade Configuration Consepts for High Speed Turboprop Systems
Hall, E.J. ; Topp, D.A. ; Heidegger, N.J. ; Delaney, R.A.
Pub. info.: NASA Technical Reports.  (NASA-CR-195360),  pp.1-362,  1994.  National Aeronautics and Space Adminstration
2.

Technical Paper
Technical Paper
2. Investigation of advanced Counterrotation Blade Configuration Concepts for High Speed Turboprop Systems
Hall, E.J. ; Topp, D.A. ; Heidegger, N.J. ; Delaney, R.A.
Pub. info.: NASA Technical Reports.  (NASA-CR-196359),  pp.1-183,  1994.  National Aeronautics and Space Adminstration