A wind tunnel investigation of the effect of aircraft ground deicing/anti-icing fluids on the aerodynamic characteristics of a Boeing 737-200ADV airplane was conducted. The test was carried out in the NASA Lewis Icing Research Tunnel. Fluids tested include a Newtonian deicing fluid, three non-Newtonian anti-icing fluids commercially available during or before 1988, and eight new experimental non-Newtonian fluids developed by four fluid manufacturers. The results show that fluids remain on the wind after liftoff and cause a measurable lift loss and drag increase. These effects are dependent on the high-lift configuration and on the temperature. For a configuration with a high-lift leading-edge device, the fluid effect is largest at the maximum lift condition. The fluid aerodynamic effects are related to the magnitude of the fluid surface roughness, particularly in the first 30 percent chord. The experimental fluids show a significant reduction in aerodynamic effects. Runyan, L. James and Zierten, Thomas A. and Hill, Eugene G. and Addy, Harold E., Jr. Glenn Research Center AERODYNAMIC CHARACTERISTICS; BOEING AIRCRAFT; DEICING; ICE FORMATION; NEWTONIAN FLUIDS; RHEOLOGY; WIND TUNNEL TESTS; AERODYNAMIC DRAG; GROUND WIND; LEADING EDGES; LIFT; SURFACE ROUGHNESS...

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