13 Things You Never Knew About the Boeing 737

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13 Things You Never Knew About the Boeing 737

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1) The 737’s maiden flight was on April 9, 1967 – more than two years before the first moon landing.

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2) The 737 is the best-selling airliner in history, with over 8,500 built.

primaryBryan Burke

3) On average, more than 1,250 737s are airborne at any given time.

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4) The launch customer for the 737 wasn’t in the US. It was German-based Lufthansa Airlines.

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5) By 1970, Boeing only had 37 orders for the 737. They considered canceling the program, but after the cancellation of the Boeing Supersonic Transport, and scaling back of the 747, they freed enough funds to keep the program going.

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6) The 737-200 had an optional gravel kit, giving the aircraft the ability to fly into unpaved runways in remote locations.

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7) The 737-300 featured CFM high-bypass turbofan engines. However, the gear design provided very little ground clearance for the new engines. To overcome the problem, engineers reduced the size of the fan, placed the engines ahead of the wings, and moved the engine accessories to the sides of the engine. This gave it a non-circular shape, as well as more ground clearance.

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8) The engine design saved CFM’s program – up until then, CFM had not sold any CFM56 engines.

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9) The 737 doesn’t have gear doors. Instead, the wheels have hub caps on the outside, and the gear wells have brushes on them to create an aerodynamic seal.

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10) Many of the early 737 models had eyebrow windows, giving pilots better visibility in turns, and making star navigation easier.

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11) In 2014, airlines started installing Split Scimitar winglets on 737s, increasing fuel savings by 2.2%. And as an added bonus, the wings look even cooler.

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12) On average, a 737 takes off or lands somewhere on Earth every 5 seconds.

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13) 737s make up over 25% of the worldwide large commercial airliner fleet – and that is impressive.

stem-7Frans Zwart
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