Not long before the UK Royal Navy decommissioned the last British Aerospace Sea Harrier in March 2006, Maryland resident and aircraft mechanic Christian Vlahos received a phone call from a close friend. Art Nalls, calling from England, immediately got to the point. "He said, 'Christian, I want to buy a Harrier,'" Vlahos recalls nearly four years later. "I was like, 'As in, a 'Harrier'-Harrier?!'" As unusual as the conversation may seem, it was not entirely out of character for Nalls. A former US Marine Corps test pilot-turned-real estate-millionaire, Nalls has an eccentric streak. Not only had Nalls restored - with...