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American Airlines was the first US major carrier to order the MD-80 when it leased twenty 142-seat aircraft from McDonnell Douglas in October 1982 to replace its Boeing 727-100s. It committed to 67 firm orders plus 100 options in March 1984, and in 2002 its fleet peaked at more than 360 aircraft, 30% of the 1,191 produced.
The Pratt & Whitney JT8D is a low-bypass (0.96 to 1) turbofan engine introduced by Pratt & Whitney in February 1963 with the inaugural flight of the Boeing 727.It was a modification of the Pratt & Whitney J52 turbojet engine which powered the US Navy A-6 Intruder and A-4 Skyhawk attack aircraft.
In August 2013, USA Jet Airlines became the world's first operator of an MD-80 Passenger-to-Freighter conversion. The aircraft, converted by Aeronautical Engineers, Inc., competes against the Boeing 727 in the cargo market. [5] In February 2023, USA Jet retired the last three of their McDonnell Douglas DC-9 fleet. [citation needed]
For instance, waiting to swap out the 727 fleet it had at deregulation (yet the abortive 1982/1983 Braniff deal would have doubled-down on 727s), which were too large and too fuel inefficient (given the rise in fuel prices, which PSA also blamed) and too labor intensive (given its three person cockpit vs two places for the MD-80).
ALM MD-80 in Miami. In 1975, ALM replaced its older DC-9s with the new McDonnell Douglas DC-9-32 series, significantly increasing seating capacity. Two years later, a Boeing 727 was added for additional routes to Chicago, Cleveland, Detroit, and New York, which were mostly operated as charter flights. During this period ALM grew rapidly and its ...
The 727 is equipped with a retractable tailskid that is designed to protect the aircraft in the event of an over-rotation on takeoff. The 727's fuselage has an outer diameter of 148 inches (3.8 m). This allows six-abreast seating (three per side) and a single aisle when 18-inch (46 cm) wide coach-class seats are installed.
Ventral airstairs are featured on most tail-engined airliners, such as the Boeing 727, the McDonnell Douglas DC-9, MD-80 and MD-90, the BAC 1-11, and the Yakovlev Yak-40/Yak-42 series, and are incorporated as ramps which lower from the fuselage.
On December 3, 1990, two Northwest Airlines jetliners collided at Detroit Metropolitan Wayne County Airport. Flight 1482, a scheduled Douglas DC-9-14 operating from Detroit to Pittsburgh International Airport, taxied by mistake onto an active runway in dense fog and was hit by a departing Boeing 727 operating as Flight 299 to Memphis International Airport.