Test Pilot
            
    
        
                January 1, 2009
                By Barry Schiff
            
         
        
            GENERAL From reader John Schmidt: Mike Howard, an airline pilot from Manchester, England, walked a tightrope in 2004. What made this feat so unique? Who was the only sitting president of the United States to travel on a regularly scheduled airline flight? Who was first to fly solo around the world? From reader Stephen Rosenbaum: The shape of the fuselage of the first supersonic airplane, the Bell X-1, was borrowed from that of a _______.