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Airplane Shuddering On Takeoff  
User currently offlineTallguy14 From United States of America, joined Jul 2002, 228 posts, RR: 0
Posted (8 years 9 months 2 weeks 2 days 4 hours ago) and read 5662 times:
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Hi all-- don't flame me if this has been discussed before. Has anyone else noticed the shuddering feeling onboard an airliner right after takeoff? For years I mistakenly thought it was just the transition from the ground to the air (even a slight stall). I guess it's really the landing gear, spinning and wobbling as it's retracted. I've flown all my life and never really thought about it.

And are there "brakes" to slow the spinning wheels as they're retracted into the wheel wells?

Jeff

15 replies: All unread, jump to last
 
User currently offline777WT From United States of America, joined Jan 2005, 875 posts, RR: 1
Reply 1, posted (8 years 9 months 2 weeks 2 days 4 hours ago) and read 5639 times:

Quoting Tallguy14 (Thread starter):

Yes it would be the wheels slowing down and wobbling after leaving the runway. It easily noticed in a C172.

There are brakes on most airliners to stop the rotation before entering the wheel well. There's snubbers in the nose wheel well to stop the rotation once it enters the nose wheel well.


User currently offlineRedngold From United States of America, joined Mar 2000, 6907 posts, RR: 45
Reply 2, posted (8 years 9 months 2 weeks 2 days 4 hours ago) and read 5591 times:

There are a variety of reasons why an aircraft might shudder at takeoff. Remember that there's no longer stability from contact with the ground, and that there's a transition to "clean wings" after departure. A pilot or engineer should be able to shed more light on this.


redngold



Up, up and away!
User currently offline474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 3, posted (8 years 9 months 2 weeks 2 days 4 hours ago) and read 5506 times:

I think the shuddering you feel just after lift off is the MLG tires rotating, as soon as the landing gear handle is position to the up position the brakes will be applied and the shuddering should stop. However, during that time between lift off and the start of landing retraction you may feel the tires rotating.

User currently offlineLoisencroach From United States of America, joined Sep 2005, 373 posts, RR: 5
Reply 4, posted (8 years 9 months 2 weeks 2 days 4 hours ago) and read 5487 times:

I notice it upon landing in an Airbus.

User currently offlineMxCtrlr From United States of America, joined Nov 2001, 2485 posts, RR: 35
Reply 5, posted (8 years 9 months 2 weeks 2 days 1 hour ago) and read 5304 times:

As with other explanations above, it is the rotation of the wheels which act somewhat like unbalanced gyros for a brief moment before they are stopped by the snubbers. In the cockpit, on wheels up, you can hear the nose tires "scraping" to a stop by the nose wheel snubbers.

MxCtrlr   

[Edited 2005-10-19 04:16:15]


DAMN! This SUCKS! I just had to go to the next higher age bracket in my profile! :-(
User currently offlineUsnseallt82 From United States of America, joined Jan 2004, 4891 posts, RR: 53
Reply 6, posted (8 years 9 months 2 weeks 2 days ago) and read 5233 times:

Also, you have very intense locking mechanisms throughout the wheel wells that will give a clicking and shuddering effect when being cycled through. There's nothing abnormal about this, but you will definitely feel it more on the smaller aircraft that don't have a lot of distance between your seat and the wells. Especially, like someone said, on a small aircraft like a 172 or 182....you'll feel every damn thing that each wheel is doing!

Kinda entertaining if you ask me.  Big grin



Crye me a river
User currently offlineDiamond From United States of America, joined Apr 2004, 3279 posts, RR: 63
Reply 7, posted (8 years 9 months 2 weeks 2 days ago) and read 5229 times:

Why is this thread in non-aviation?


Blank.
User currently offlineHAWK21M From India, joined Jan 2001, 31667 posts, RR: 56
Reply 8, posted (8 years 9 months 2 weeks 1 day 19 hours ago) and read 5182 times:

Quoting Tallguy14 (Thread starter):
And are there "brakes" to slow the spinning wheels as they're retracted into the wheel wells?

Auto retract bracking for the Main Wheels & Snubber pads for The Nose Wheels.
regds
MEL



Think of the brighter side!
User currently offlineUTA_flyinghigh From Tunisia, joined Oct 2001, 6495 posts, RR: 50
Reply 9, posted (8 years 9 months 2 weeks 1 day 19 hours ago) and read 5178 times:

Quoting Diamond (Reply 7):
Why is this thread in non-aviation?

Maybe the original poster thought it might had something to do with the pax's sexual orientation  Wink

UTA  checkeredflag 



Fly to live, live to fly - Air France/KLM Flying Blue Platinum, BMI Diamond Club Gold, Emirates Skywards
User currently offlinePIA777 From United States of America, joined Dec 2003, 1738 posts, RR: 6
Reply 10, posted (8 years 9 months 2 weeks 1 day 17 hours ago) and read 5169 times:

I noticed this only on 747-400 and 747SP both UA.

PIA777



GO CUBS!!
User currently offlineUsnseallt82 From United States of America, joined Jan 2004, 4891 posts, RR: 53
Reply 11, posted (8 years 9 months 2 weeks 1 day 14 hours ago) and read 5117 times:

Quoting UTA_flyinghigh (Reply 9):
Maybe the original poster thought it might had something to do with the pax's sexual orientation

haha! or mile high related questions!  bigthumbsup 



Crye me a river
User currently offlineBri2k1 From United States of America, joined Dec 2004, 988 posts, RR: 4
Reply 12, posted (8 years 9 months 2 weeks 1 day 11 hours ago) and read 5067 times:

Quoting UTA_flyinghigh (Reply 9):
Maybe the original poster thought it might had something to do with the pax's sexual orientation Wink

Good one. I know I feel a shudder when the plane's on the ground and the enormously obese passenger boards. I traced it to every other passenger shuddering, wondering where he'll sit! (This actually happened yesterday on a ERJ)



Position and hold
User currently offlineDeltaGator From United States of America, joined Sep 2005, 6341 posts, RR: 13
Reply 13, posted (8 years 9 months 1 week 6 days 23 hours ago) and read 4793 times:

Quoting PIA777 (Reply 10):
I noticed this only on 747-400 and 747SP both UA.

Take a ride on an L1011. They would shake you to death on takeoff. I always expected the overhead bins to fall. I really miss that old plane.



"If you can't delight in the misery of others then you don't deserve to be a college football fan."
User currently offlineSkySurfer From United Kingdom, joined Sep 2004, 1136 posts, RR: 12
Reply 14, posted (8 years 9 months 1 week 2 days 2 hours ago) and read 4506 times:

Quoting DeltaGator (Reply 13):
Take a ride on an L1011

I'll second that.....on takeoff you get double vision from the shaking and shuddering! All part of the great experience of the L1011

Cheers



In the dark you can't see ugly, but you can feel fat
User currently offlineJspitfire From Canada, joined Feb 2005, 308 posts, RR: 2
Reply 15, posted (8 years 9 months 1 week 2 days 1 hour ago) and read 4497 times:

Wow, cool, I didn't never did know why the plane shutters on takeoff. It happens all the time when I'm flying the 172.

Jason


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