The MD-80 is a mid-size, medium-range airliner. The series featured a fuselage longer than the DC-9-50. The DC-9's wing design was enlarged by adding sections at the wing root and tip for a 28% larger wing. It was the second generation of the DC-9, originally called the DC-9-80 and the DC-9 Super 80. It has two rear fuselage-mounted turbofan engines, small, highly efficient wings, and a T-tail. The aircraft has five-abreast seating in the coach class. The aircraft series was designed for frequent, short-haul flights for 130 to 172 passengers depending on airplane version and seating arrangement.