Documentation of Ice Shapes Accreted on the Main Rotor of A UH-1H Helicopter in Level Flight
"Icing tests were conducted on a UH-1H helicopter in level flight behind a spray tanker near Duluth, Minnesota, during the winter of 1983-84 as part of the joint NASA/Army HIFT (Helicopter Icing Flight Test) program. On landing, the ice formations on the main rotor were documented by casting a set of ten-inch molds on the blade using a Dow-Corning silicone rubber compound which was initially liquid at sub-freezing temperatures. Such documentation was accomplished for eight flights in which the temperature ranged from -11 C to -22 C and the in-cloud flight times ranged from 5 to 9 minutes."--NTIS abstract.
Publisher: Columbus, Ohio : Ohio State University, Aeronautical and Astronautical Research Laboratory ; Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, 
Characteristics: i, 11 p. : Ill. graphs.