Tallguy14 From United States of America, joined Jul 2002, 228 posts, RR: 0 Posted (9 years 11 months 3 weeks 4 days 1 hour ago) and read 6950 times:
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?
Redngold From United States of America, joined Mar 2000, 6907 posts, RR: 41
Reply 2, posted (9 years 11 months 3 weeks 4 days 1 hour ago) and read 6879 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.
474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 3, posted (9 years 11 months 3 weeks 4 days ago) and read 6794 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.
MxCtrlr From United States of America, joined Nov 2001, 2485 posts, RR: 33
Reply 5, posted (9 years 11 months 3 weeks 3 days 22 hours ago) and read 6592 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.
[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 From United States of America, joined Jan 2004, 4891 posts, RR: 51
Reply 6, posted (9 years 11 months 3 weeks 3 days 20 hours ago) and read 6521 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!
Bri2k1 From United States of America, joined Dec 2004, 988 posts, RR: 3
Reply 12, posted (9 years 11 months 3 weeks 3 days 8 hours ago) and read 6355 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)