The term 747 OR 757 is a reference to two different types of JET planes. The Boeing 747 is a wide-body commercial airliner, commonly referred to as the 'jumbo JET'. It was the first wide-body aircraft ever produced and is one of the most recognizable aircraft in the world. The Boeing 757 is a narrow-body commercial airliner that was introduced in 1983. It is a popular choice for short- and medium-haul routes and is known for its fuel efficiency. Both the 747 and 757 are widely used by airlines around the world.