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B738 grown in size

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B738 grown in size

Old 15th Feb 2018, 09:57
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B738 grown in size

180 degree turn needed 24.1m but now needs 24.3!

What happened???
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Old 15th Feb 2018, 10:30
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Incorrect imperial to metric conversion, and someone has just double checked perhaps?
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Old 15th Feb 2018, 14:18
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Originally Posted by Pin Head
180 degree turn needed 24.1m but now needs 24.3!

What happened???
New diameter taking into account sharklets not just winglets?
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Old 15th Feb 2018, 14:21
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Originally Posted by Skyjob
New diameter taking into account sharklets not just winglets?
It is probably the majestic B737 Max, eight inches higher, makes a difference, but rather small to notice.
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Old 15th Feb 2018, 14:46
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Given the age of this contraption, it’s likely that the definition of a meter has become more accurate hence they updated the turn radius.

GF
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Old 15th Feb 2018, 14:55
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Increased self-perception of size. Insecurity complex, after the C-series debacle.
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Old 15th Feb 2018, 15:26
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Originally Posted by Pin Head
180 degree turn needed 24.1m but now needs 24.3!

What happened???
The change occurred some time between the 2005 and 2013 editions of the Airplane Characteristics documents that Boeing publishes.

The numbers for the -700 and -900 have changed slightly, too.
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Old 15th Feb 2018, 15:48
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It's the increasingly overweight passengers, Boeing engineering recognized how when they get on, the landing gear splays out.
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