tallguy14
Posts: 188
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Airplane Shuddering On Takeoff

Wed Oct 19, 2005 7:54 am

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
 
777wt
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RE: Airplane Shuddering On Takeoff

Wed Oct 19, 2005 7:58 am

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.
 
redngold
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RE: Airplane Shuddering On Takeoff

Wed Oct 19, 2005 8:06 am

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
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474218
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RE: Airplane Shuddering On Takeoff

Wed Oct 19, 2005 8:28 am

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.
 
loisencroach
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RE: Airplane Shuddering On Takeoff

Wed Oct 19, 2005 8:31 am

I notice it upon landing in an Airbus.
 
MxCtrlr
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RE: Airplane Shuddering On Takeoff

Wed Oct 19, 2005 11:15 am

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! :-(
 
usnseallt82
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RE: Airplane Shuddering On Takeoff

Wed Oct 19, 2005 12:28 pm

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
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diamond
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RE: Airplane Shuddering On Takeoff

Wed Oct 19, 2005 12:34 pm

Why is this thread in non-aviation?
Blank.
 
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HAWK21M
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RE: Airplane Shuddering On Takeoff

Wed Oct 19, 2005 5:29 pm

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
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UTA_flyinghigh
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RE: Airplane Shuddering On Takeoff

Wed Oct 19, 2005 5:35 pm

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 
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PIA777
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RE: Airplane Shuddering On Takeoff

Wed Oct 19, 2005 7:12 pm

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

PIA777
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usnseallt82
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RE: Airplane Shuddering On Takeoff

Wed Oct 19, 2005 10:37 pm

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
 
bri2k1
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RE: Airplane Shuddering On Takeoff

Thu Oct 20, 2005 12:47 am

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
 
deltagator
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RE: Airplane Shuddering On Takeoff

Fri Oct 21, 2005 1:23 pm

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."
 
skysurfer
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RE: Airplane Shuddering On Takeoff

Wed Oct 26, 2005 10:29 am

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
 
jspitfire
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RE: Airplane Shuddering On Takeoff

Wed Oct 26, 2005 11:25 am

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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