The United States Air Force Scientific Advisory Board (SAB) is a military unit that provides forecasts of long-range science and technology. Scientific Advisory Board Chairmen 1944–1954: Dr. Theodore von Kármán (Chairman Emeritus −1963) 1955–58 Dr. James H. "Jimmy" Doolittle, Maj Gen 1962–64: Dr. H. Guyford Stever 1982–86 Dr. Eugene E. Covert 1995–96 Dr. Gene McCall Scientific Advisory Board Military Directors 1944–1946: Gen Henry Harley "Hap" Arnold 1946–47: Maj Gen Curtis E. Lemay 1947–1948: Lt Gen Laurence Craigie 1948–52,54- : Maj Gen Donald L. Putt