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Why Didn't My Landing Gear Come Down Together?  
User currently offlineIrishpower From United States of America, joined Aug 2003, 433 posts, RR: 0
Posted (10 years 8 months 1 day 5 hours ago) and read 3680 times:

I was on a flight recently from SMF-LAS on Southwest. It was a newer 737 and I was sitting in seat 7A. I could see the reflection of the underside of the plane in the reflection of the freshly painted engine cowling.

My question is this--I was watching the underside of the plane as we prepared to land and I could see the rear landing gear come down and lock and then there was a good 5-7 second delay before i saw the front landing gear come down.

I thought the landing gear always came down together--why the delay between the two sets???? Was there something wrong?

4 replies: All unread, jump to last
User currently offlineNewark777 From United States of America, joined Dec 2004, 9348 posts, RR: 27
Reply 1, posted (10 years 8 months 1 day 5 hours ago) and read 3643 times:

It probably just takes longer for the front gear to come all the way down.


Why grab a Heine when you can grab a Busch?
User currently offlineIslipWN From , joined Dec 1969, posts, RR:
Reply 2, posted (10 years 8 months 23 hours ago) and read 3385 times:


Um, it just probably takes longer for the front landing gear to come down.

[Edited 2005-09-30 00:45:30]

User currently offlineWagz From United States of America, joined Mar 2003, 524 posts, RR: 13
Reply 3, posted (10 years 8 months 21 hours ago) and read 3268 times:
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Actually its quite common for landing gear to travel at differant rates of speed. You'll notice the two sets of main gear even travel at differant rates. I've shot departures numerous times where a Left Gear door was shut and closed completely, while the Right Gear door was still open a tad.

I beleive this is because each gear is powered by a separate hydraulic system, so it may take a differant ammount of time for each system to run its course.

I think Big Foot is blurry, Its not the photographers fault. Theres a large out of focus monster roaming the countryside
User currently offlineHAWK21M From India, joined Jan 2001, 31875 posts, RR: 54
Reply 4, posted (10 years 8 months 15 hours ago) and read 3079 times:

Quoting Wagz (Reply 3):
I beleive this is because each gear is powered by a separate hydraulic system

One Hydraulic system & one Secondary system for all Three Gears.
Remember all three Gears have Three Different Actuators.There is bound to be a Lag somewhere.

Think of the brighter side!
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