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The original and only Hughes H-1B , which was designed , built and flown by secretive millionaire Howard Hughes in the 1930s , is now displayed at the National Air and Space Museum in Washington , D.C. Hughes considered the airplane one of his greatest achievements and flew it to a closed-course record of 352 miles per hour in 1935 and a then-transcontinental record speed of 332 mph in January 1937 . Section 104 of the Act requires that the Board conduct a continuing program of inspections of registered public accounting firms . Taping and production of the " Learning to Fly " series was based at the EAA Aviation Center in Oshkosh and the adjacent Wittman Regional Airport , home of the EAA AirVenture fly-in . " The rebirth of this design allows today 's aviation enthusiasts to enjoy the speed , power and even the mystery surrounding Howard Hughes ' first airplane , which was designed specifically to set speed records . The program was designed for flexible participation and as a mechanism to further evaluate the capabilities of interactive data in general , and XBRL in particular . The NEWCO , which was infused with both cash and debt , was owned by a new group of unrelated investors .