Can you spot what is different about this Boeing 747-100? If you guessed the engine attached to the upper deck — you win. Pratt & Whitney is testing the PW1200G engine. Photo by Guy Norris.
Can you spot what is different about this Boeing 747-100? If you guessed the engine attached to the upper deck — you win. Pratt & Whitney is testing the PW1200G engine. Photo by Guy Norris.