Boeing 757 Delta Airlines U.S. Air Force versatile "Herc" has accumulated over

versatile "Herc" has accumulated over 20 million flight hours

the original engines were replaced with Allison V-3420-11 V engines

Another unusual feature of the Tiger was the use of spoilers instead of ailerons for bank and roll

More importantly though

Boeing 757 Delta Airlines U.S. Air Force versatile "Herc" has accumulated overDelta Airlines 757 model. The first flight of a Boeing 757 took place in February, 1982. Using the same fuselage cross section as the Boeing 727, but with a length 19 ft. 7 in. greater, the Boeing 757 is a short medium range airliner with a maximum high density seating arrangement for 224 passengers. The Boeing 757 is one of the world's most economical turbofan powered airliners in the short medium range category, showing a fuel saving of 45 per cent