136. Titchener, I.M. and A.J. Taylor-Russell, "Experiments on the Growth 

 of Vortices in Turbulent Flow," Aeronautical Research Council, Report 

 CP No. 316 (Mar 1966). 



137. Treaster, A.L., "The Design of a Free-Vortex Blade System for 

 Cavitation Studies in the Small Water Tunnel," Pennsylvania State 

 University Ordinance Research Laboratory, Tech. Memo. File No. 508-02 

 (Oct 1970). 



138. Weber, J. A. et al., "Three-Dimensional Solution of Flows Over Wings 

 with Leading Edge Vortex Separation," Am. Inst. Aeronaut. Astronaut. 

 J., Vol. 14, No. 4 (Apr 1976). 



139. Wetmore, J.W. and J. P. Reeder, "Aircraft Vortex Wakes in Relation to 

 Terminal Operations," National Aeronautics and Space Administration, 

 Tech. Note D-1777 (Apr 1963). 



140. Whitcomb, R.T., "A Design Approach and Selected Wind-Tunnel Results 

 at High Subsonic Speeds for Wing-Tip Mounted Winglets," National 

 Aeronautics and Space Administration, Tech. Note TN D-8260 



(Jul 1976). 



141. White, R.P., Jr. and J.C. Balcerak, "An Experimental Investigation of 

 Vortex Flow Control for High Lift Generation," Office of Naval 

 Research Report, ONR CR212-223-2 (Dec 1975). 



142. White, R.P., Jr. and J.C. Balcerak, "Investigation of the Dissipation 

 of the Tip Vortex of a Rotor Blade by Mass Injection," U.S. Army Air 

 Mobility Research and Development Laboratory Report 72-43, Contract 

 to Rochester Appl. Sci. Assoc, RASA Report 72-03 (Aug 1972). 



143. White, R.P., Jr., "An Investigation of the Vibration and Acoustic 

 Benefits Obtainable by the Elimination of the Blade Tip Vortex," 

 Proc. 29th Annual National Forum of the American Helicopter Society, 

 Washington, DC, Preprint No. 735 (May 1973). 



144. Widnall, S.E. et al. , "Theoretical and Experimental Study of the 

 Stability of a Vortex Pair," publ. in "Aircraft Wake Turbulence and 

 Its Detection," ed. by J.H. Olsen et al. , Plenum Press, New York 

 (1971), p. 305. 



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