Sponsor Message:
Civil Aviation Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Did They Forget To Put The Gear Up?  
User currently offlineHighFlyer9790 From United States of America, joined Jul 2005, 1241 posts, RR: 0
Posted (8 years 6 months 1 week 2 days 7 hours ago) and read 4848 times:

While browsing new videos at flightlevel350.com, I came across this one. The gear is not retracted, even well after takeoff. Maybe they were waiting to clear a specific altitude? they forgot? special procedure for a freighter? i know 747 tend to leave gear down a tad longer than other aircraft, but this is quite unusual. Comments appriciated!

http://www.flightlevel350.com/viewer.php?id=5122

Cheers,
Highflyer


121
12 replies: All unread, jump to last
 
User currently offlineAA61Hvy From United States of America, joined Nov 1999, 13977 posts, RR: 57
Reply 1, posted (8 years 6 months 1 week 2 days 7 hours ago) and read 4762 times:

Nah, I think alot of times they do that to 'clean off' the gear. I've seen a DC-10 keep it up until about 5,000 feet.


Go big or go home
User currently offlineMD88Captain From United States of America, joined Nov 2001, 1330 posts, RR: 20
Reply 2, posted (8 years 6 months 1 week 2 days 7 hours ago) and read 4754 times:

Often a delay in gear retraction is used to cool the brakes and tires after a prolonged taxi on heavy weight aircraft.

User currently offlineEirjet From Ireland, joined Jul 2005, 330 posts, RR: 1
Reply 3, posted (8 years 6 months 1 week 2 days 7 hours ago) and read 4754 times:

I think someone posted a similiar question some time ago about a different aircraft.

In that particular instance it was explained that in some cases pilots retract the gear late so as to let any tire dust be 'brushed' off by the air. I think someone also mentioned that leaving the gear extracted while climbing (for a short period) helps cool the wheels.

Some-one with some technical knowledge may provide a better explanation.

Eirjet



Aviation has a 100% record, we've never left one up there......
User currently offlineSpeedbird128 From Pitcairn Islands, joined Oct 2003, 1648 posts, RR: 2
Reply 4, posted (8 years 6 months 1 week 2 days 3 hours ago) and read 4471 times:

Quoting MD88Captain (Reply 2):
Often a delay in gear retraction is used to cool the brakes and tires after a prolonged taxi on heavy weight aircraft.

Cooling is a highly likely reason.

A few months ago, during our summer season where the day-time temperatures hover just under 50C, I had a Syrian B74S depart, and they had still not retracted the gear when they were through 8000' and I had lost sight of them... I informed our radar sector, and they queried the pilot if there was a problem, and he said no, they had delayed retraction for cooling purposes...

Cheers



A306, A313, A319, A320, A321, A332, A343, A345, A346 A388, AC90, B06, B722, B732, B733, B735, B738, B744, B762, B772, B7
User currently offlineMatt72033 From United Kingdom, joined May 2005, 1617 posts, RR: 4
Reply 5, posted (8 years 6 months 1 week 2 days 2 hours ago) and read 4457 times:

common after a long taxi period, brakes get a little warm the airflow over them cools them off a bit!

User currently offlineHighFlyer9790 From United States of America, joined Jul 2005, 1241 posts, RR: 0
Reply 6, posted (8 years 6 months 1 week 21 hours ago) and read 4120 times:

thankx alot! i can always count on a.nutters!


121
User currently offlineFr8mech From United States of America, joined Sep 2005, 5327 posts, RR: 14
Reply 7, posted (8 years 6 months 1 week 21 hours ago) and read 4071 times:

There is also a chance tat a brake was deferred. The crew must leave the gear down in order to allow the wheel to come to a stop.


When seconds count...the police are minutes away. Never leave your cave without your club.
User currently offline474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 8, posted (8 years 6 months 1 week 20 hours ago) and read 3997 times:

Quoting Fr8mech (Reply 7):
There is also a chance tat a brake was deferred. The crew must leave the gear down in order to allow the wheel to come to a stop.

When the gear handle is selected to the up position, hydraulic pressure is routed to brakes, which stops the wheel rotation.


User currently offlineMatt72033 From United Kingdom, joined May 2005, 1617 posts, RR: 4
Reply 9, posted (8 years 6 months 1 week 16 hours ago) and read 3769 times:

Quoting Fr8mech (Reply 7):
There is also a chance tat a brake was deferred. The crew must leave the gear down in order to allow the wheel to come to a stop.



Quoting 474218 (Reply 8):
When the gear handle is selected to the up position, hydraulic pressure is routed to brakes, which stops the wheel rotation.

not if theres a U/S brake unit!


User currently offlineMoparman From United States of America, joined Dec 2005, 411 posts, RR: 2
Reply 10, posted (8 years 6 months 1 week 16 hours ago) and read 3738 times:

Just out of curiosity:

I'm not a pilot, but have a question to the pilots here. That landing gear would have to cause immense drag. Is it possible that the pilot forgets to raise the landing gear that so much drag is lost that the aircraft stalls and crashed because it cannot gain/maintain airspeed?



"Harming a patient is unethical, but I can inflict as much pain as I like" Dr. Phlox
User currently offlineGunsontheroof From United States of America, joined Jan 2006, 3499 posts, RR: 10
Reply 11, posted (8 years 6 months 1 week 16 hours ago) and read 3729 times:

On climbout from AMS enroute to SEA (NW A333) last summer, the captain of my flight actually put the gear back down to cool it off. It was a full flight, and we'd had a long taxi to 36L (not that there's a short one).


Next Flight: 9/17 BFI-BFI
User currently offlineOlympus69 From Canada, joined Jun 2002, 1737 posts, RR: 7
Reply 12, posted (8 years 6 months 1 week 8 hours ago) and read 3514 times:

Quoting Moparman (Reply 10):
Is it possible that the pilot forgets to raise the landing gear that so much drag is lost that the aircraft stalls and crashed because it cannot gain/maintain airspeed?

No.


Top Of Page
Forum Index

This topic is archived and can not be replied to any more.

Printer friendly format

Similar topics:More similar topics...
Pilots Forget To Put Down Landing Gear posted Thu Aug 25 2005 22:31:09 by Planemannyc
Let's Sum Up Everything They Want To Put On A380! posted Tue Jan 25 2005 13:53:53 by Birdwatching
Aibus A380 And A340 Where Did They Go To? posted Sat Jul 29 2006 02:07:52 by 50watt
How To Reach The Guys Up Top posted Thu Mar 2 2006 08:28:28 by Kaktusdigital
CO To Put The 733 On The YVR Run posted Sat Oct 22 2005 08:02:40 by CO737800
How Did Airbus Manage To Get The A345/6 So Heavy posted Thu Oct 28 2004 19:44:11 by RJ111
They Forgot To Cater The Aircraft! posted Fri Dec 19 2003 04:35:37 by Dtwclipper
Northwest Airlines; Why Did They Have To Do This? posted Thu Oct 30 2003 02:18:20 by Superfly
Where Did TG Fly To In The US? posted Wed Apr 23 2003 11:08:29 by Richcandy
Why Did Boeing Decide To Build The 757? posted Wed Mar 19 2003 22:06:20 by BeltwayBandit