It was so big that Travis Hammond thought surely it should fall out of the sky. It seemed inconceivable for something so massive to take flight. Hammond was standing at a viewing area near the end of the runway at Ted Stevens International Airport in Anchorage, Alaska. Scads of other planespotters stood by, eagerly awaiting an aircraft so rarely in flight that glimpses of it are almost mythical. “This plane is it,” Hammond says. “I mean, it’s like the great white buffalo. A unicorn of airplanes.” Hammond used to be…
