242 



Tullahoma, TN., U.S.A. 



VON KARMAN SUPERSONIC WIND TUNNELS 

 Arnold Engineering Development Center 

 U.S. Air Force 



"Big Science" Descriptor ; Aerodynamics 



Description of Facility/Instrument : These tunnels are used for force 

 and moment pressure, heat transfer, dynamic stability, cold 

 flow jet effects, and free flight tests. 



Date of Construction : 1954 



Construction Cost : 1984 $$ : $151 million 



Present International Cooperation 



Nationality(s) of Ownership : U.S. 

 Nationality(s) of Operational Funding : U.S. 

 Nationality(s) of Management Staff : U.S. 

 Natlonality(s) of Researchers: U.S. 



Carderock, MD., U.S.A. 



DTNSRDC TRANSONIC WIND TUNNEL 



Aviation and Surface Effects Department 



David Taylor Naval Ship R&D Center (DTNSRDC) 



"Big Science" Descriptor : Aircraft and missile aerodynamics 



Description of Facility/ Instrument : Continuous-flow wind tunnel with 

 7x10 foot transonic test section (Mach 0.2 to 1.15) and 12x15 

 foot low speed test section (Mach 0.05 to 0.2). Stagnation pres- 

 sure 0.3 to 1.5 atmospheres. Captive trajectory system for study 

 of the behavior of aircraft-launched weapons. 



Date of Construction: Tunnel with high speed test section commissioned 

 in 1957 and upgraded in 1983-84. Low speed test section scheduled 

 for 1987 commissioning. 



Construction Cost; 



Original : $5 million 

 1984 $$ : $50 million 



Present International Cooperation 



Nationallty(s) of Ownership : U.S. 

 Nationality(s) of Operational Funding ; U.S. 

 Nationality(s) of Management Staff : U.S. 

 Nationality(s) of Researchers ; U.S. 



Potential for Future International Cooperation ; There are no plans 



under active discussion, but a possibility of future international 

 cooperation lies in the fact that this facility is exceptionally 

 accurate and efficient in its captive trajectory mode of operation. 

 This is an area of growing importance in connection with efforts 

 to reduce the observability of tactical aircraft. 



