1. ARoD Contract No' 375, Interim Reports I and 11 (1965 and 1966)
2. Yaggy, P. F., and Mort, K. W. "Wind-tunnel tests of two VTOL propellers in descent," NASA TN 0-1766 (1963)
3. 'HouboltA J. C., Steiner, R., and Pratt, K. G., Dynamic response of airplanes t o atmospheric turbulence," NASA TR R-199 (1964)
4. Summary of flight load environmental data taken on b-52 fleet aircraft