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Turbulence And Us...  
User currently offlineAerosvit From Ukraine, joined Feb 2004, 112 posts, RR: 1
Posted (12 years 2 months 3 weeks 4 days 19 hours ago) and read 3036 times:

So as I was reading some of the trip reports...I read a lot about extreme turbulence and flight attendants havingt to stop serving due to it.

SO the question is...just how much can an aircraft handle? I heard somewhere that the 777s wings can bend pretty high up and down...some 10 or so feet up and down. Is that true?

Clava Ykraini
6 replies: All unread, jump to last
User currently offlineStarlionblue From Greenland, joined Feb 2004, 17661 posts, RR: 65
Reply 1, posted (12 years 2 months 3 weeks 4 days 19 hours ago) and read 3007 times:

Not that I have exact figures, but the typical thing you hear is "150% of the max load that is ever expected to be applied".

The 777 wings can bend about 7 metres up and a couple down.

Basically other things (interiors, passengers and so on) will break before the aircraft.

"There are no stupid questions, but there are a lot of inquisitive idiots."
User currently offlineB747skipper From , joined Dec 1969, posts, RR:
Reply 2, posted (12 years 2 months 3 weeks 4 days 19 hours ago) and read 2992 times:

Turbulence and you (passengers)...
If you knew about what can turbulence be, you would buckle-up AT ALL TIMES in your seats.
Time spent in the aisle would be the strict minimum for the pee-pee run...
Flight attendants deserve "hazardous duty pay"...
I know one who will never walk again in her life, due to spine injuries.
Happy contrails  Smile
(s) Skipper

User currently offlineAerosvit From Ukraine, joined Feb 2004, 112 posts, RR: 1
Reply 3, posted (12 years 2 months 3 weeks 4 days 18 hours ago) and read 2973 times:

As a matter of fact...I keep my seatbelt on at all times. Even after the sign went off. Anything can happen so its always on. When I go to the bathroom...that's the only time I'm without a seatbelt...

And I get worried everytime I'm standing by the back door of the plane and a kid is sitting on the "Do Not Sit" part of the door as happened on a BA747 flight to London. I almost freaked!

But the question stays...how much turbulence can a plane handle?

Clava Ykraini
User currently offlineMITaero From United States of America, joined Jul 2003, 497 posts, RR: 7
Reply 4, posted (12 years 2 months 3 weeks 4 days 16 hours ago) and read 2903 times:

Well, how do you quantify turbulence? It's sudden acceleration that puts stress on structures (I think), so all you have to do is figure out how much force the a/c can take, and, given its mass, compute the critical acceleration.

Not sure.

User currently offlineSovietjet From Bulgaria, joined Mar 2003, 2734 posts, RR: 15
Reply 5, posted (12 years 2 months 3 weeks 4 days 15 hours ago) and read 2870 times:
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During testing...the Tu-154 wing was bent 14 meters from its original position before breaking. Tu-154s have extremely flexible wings as you can see which leads to them being almost "turbulence free" and a smooth ride in the end.

User currently offlineArtsyman From United States of America, joined Feb 2001, 4748 posts, RR: 32
Reply 6, posted (12 years 2 months 3 weeks 4 days 11 hours ago) and read 2706 times:

I think one of the problems that I have noticed consistently over the years is that what is felt in the cockpit, and what is felt in the back galley is dramatically different. I have had plenty of flights where the captain was totally unaware of how brutal it was in the back.


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