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Chapter 4 Industry in the IRT The IRT, despite NASA’s decision to terminate research programs that used the facility, remained attractive to industry as the largest refrigerated icing tunnel in the world. In January and February 1958, Convair tested the wing and tail of its new 880 jet transport in the IRT. Later in the year, Grumman came to the facility to examine ways to protect the large radome of its W2F (Hawkeye) Airborne Early Warning aircraft against icing. Total tunnel usage, however, amounted only to 150 hours in 1958. Activity increased slightly in 1959 with the tunnel running for 200 hours, most of this time being spent on tests of slotted wings for the Douglas DC-8. There were no tests at all in the IRT for the first eleven months of 1960, and only 45 hours of running time in December. As industry seemed finished with the tunnel, NASA placed the IRT in standby status and considered deactivating the facility. Indeed, the IRT might well have been torn down had it not been for the interest of a young engineer from the Vertol Division of the Boeing Company.1 In March 1960, the helicopter division of Boeing asked for a volunteer to test the engine inlet of the CH-47 Chinook in the natural icing facility atop Mount Washington. Although he had no experience with icing, Andrew A. Peterson of Vertol’s Internal Aerodynamics Group decided that the assignment might be an interesting adventure. After two weeks of tests on the windy 6,250-foot mountain, it was clear that more work was necessary on a system to redistribute engine bleed air to prevent icing. As the Air Force was in charge of the Chinook project, he sought advice from the technical staff at Wright-Patterson Air Force Base. The Air Force recommended that he use the IRT for further tests. Peterson, who had never heard of the facility, was given Uwe von Glahn’s name as a contact at Lewis.2 1 “Models and Run Days for Major Facilities: Icing Research Tunnel, 1950–1986,” n.d.; Ronald J. Blaha, “Completed Schedules of NASA-Lewis Wind Tunnels, Facilities and Aircraft, 1944 to 1990,” February 1991; both documents are in the History Office, GRC. 2 Interview with Andrew A. Peterson by William M. Leary, 22 October 2000. 63PDF Image | History of NASA Icing Research Tunnel
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