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Is a Boeing 737 a narrow body?
The Boeing 737 is a narrow-body airliner produced by Boeing at its Renton Factory in Washington. Developed to supplement the Boeing 727 on short and thin routes, the twinjet retains the 707 fuselage cross-section and nose with two underwing turbofans.
Why are jet engines oval?
Best design is a round intake, like the old 1950’s fighters with a round intake in the nose. But that is a terrible waste of internal space. So intakes were moved to the sides, in the wing. Those were made oval so they did not take up as much structure to go around them.
Why are the engine nacelles flat bottomed on a 737?
The fan diameter was reduced, which reduced the bypass ratio, and the engine accessory gearbox was moved from the bottom of the engine (the 6 o’clock position) to the 9 o’clock position, giving the engine nacelle its distinctive flat-bottomed shape.
Why are the engines on a 737 so big?
For an increased air intake, engines need larger turbines powered by larger fans. These require a suitably-large engine casing to fit. Airbus built the A320 family, which rivals the Boeing 737, with bigger engines in mind. However, earlier 737 models were too low to the ground to accommodate larger engines.
What kind of plane is the Boeing 737?
The Boeing 737 is among the most popular families of commercial aircraft ever produced. On your travels or in photographs, you may or may not have noticed that this popular aircraft’s engines have a certain visual quirk to their design.
When did Lufthansa start using the 737 engine?
German flag carrier Lufthansa launched the 737-100 in 1968. Early 737 variants had smaller engines and comparatively minimal ground clearance. Photo: Lars Söderström via Wikimedia Commons However, as engine technology improved, engineers discovered that the more air an engine could suck in, the more efficient its operation will be.