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PART 1
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CONTROLS SETUP
PART 1
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INTRODUCTION
The Boeing 737 is a short- to medium-range twinjet narrow-body airliner developed and
manufactured by Boeing Commercial Airplanes in the United States. Originally developed
as a shorter, lower-cost twin-engine airliner derived from the 707 and 727, the 737 has
developed into a family of ten passenger models with capacities from 85 to 215
passengers. The 737 is Boeing's only narrow-body airliner in production, with the 737
Next Generation (-700, -800, and -900ER) and the re-engined and redesigned 737
MAX variants currently being built.
The 737 was originally envisioned in 1964. The initial 737-100 made its first flight in April
1967, and entered airline service in February 1968 at Lufthansa. Next, the lengthened
737-200 entered service in April 1968. In the 1980s, Boeing launched the longer −300,
−400, and −500 models, subsequently referred to as the Boeing 737 Classic series and
featuring CFM56 turbofan engines along with wing improvements.
The 737 Next Generation (also known as “NG” or “Next Gen”) was introduced in the
1990s in response to the A320, with a redesigned, increased span laminar flow wing,
upgraded "glass" cockpit, and new interior. The 737 Next Generation comprises the four
−600, −700, −800, and −900 models, with lengths ranging from 102 to 138 ft (31.09 to
42.06 m). Boeing Business Jet versions of the 737 Next Generation are also produced. The
737 was revised again in the 2010s for greater efficiency, with the 737 MAX series
featuring CFM International LEAP-1B engines and improved winglets. The 737 MAX
entered service in 2017.
Systems wise, the 737 has a lot of parts that were certified in the 1960/70' and had no
inherent reason to change over time. Hence this is why you will find a mix of technology
throughout the aircraft. The aerospace industry has the saying “if it isn’t broken, don’t fix
it”.
PMDG simulates the 737 NG “X” for variants -800 and -900 in the base package and the
-600 and -700 in an expansion pack.