Sponsor Message:
Aviation Technical / Operations Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
B744 Landing: Flap Settings?  
User currently offlineSevenHeavy From United Kingdom, joined Mar 2004, 1156 posts, RR: 10
Posted (10 years 3 months 3 days 15 hours ago) and read 2645 times:

Hi,

When landing on a B744 last week I noticed just after touchdown that the two more inboard sets of leading edge flaps remained retracted for landing. The outermost set (outboard of engines 1+4) were extended.
Then as we were taxiing off the runway I noticed the previously retracted flaps moving out to their fully extended position, only to be retracted again before pulling on to stand!  Confused.
I have not seen this before in numerous commercial flights.

My question is, what was the reason? Is there an operational motive, or was it a technical malfunction, or even an error by the crew?

Thanks for any input,


Regards,

SevenHeavy



So long 701, it was nice knowing you.
3 replies: All unread, jump to last
 
User currently offlineArmitageShanks From UK - England, joined Dec 2003, 3619 posts, RR: 15
Reply 1, posted (10 years 3 months 3 days 14 hours ago) and read 2600 times:

I believe they retract like that when thrust reverse is selected becase water spray freezing under the slats could pose a problem. Anyone else know for sure?

[Edited 2004-05-22 21:39:36]

User currently offlinePhilsquares From , joined Dec 1969, posts, RR:
Reply 2, posted (10 years 3 months 3 days 14 hours ago) and read 2600 times:

The leading edge devices were designed that way. Sorry no crew error or technical malfunction.

Mr. Boeing designed the devices to retract during reverse thrust to minimize the potential damage from foreign objects being blown into the leading edges.

That's it, plain and simple.


User currently offlineSevenHeavy From United Kingdom, joined Mar 2004, 1156 posts, RR: 10
Reply 3, posted (10 years 3 months 2 days 1 hour ago) and read 2276 times:

And there I was thinking I'd witnessed something extrordinary!!! Smile
Makes perfect sense when you think about it, my respect for aircraft manufacturers survives intact.

Thanks for the input, it's things like this that make this website - I could not have got a faster, more concise response if I had called boeing themselves!

Regards,

SevenHeavy



So long 701, it was nice knowing you.
Top Of Page
Forum Index

Reply To This Topic B744 Landing: Flap Settings?
Username:
No username? Sign up now!
Password: 


Forgot Password? Be reminded.
Remember me on this computer (uses cookies)
  • Tech/Ops related posts only!
  • Not Tech/Ops related? Use the other forums
  • No adverts of any kind. This includes web pages.
  • No hostile language or criticizing of others.
  • Do not post copyright protected material.
  • Use relevant and describing topics.
  • Check if your post already been discussed.
  • Check your spelling!
  • DETAILED RULES
Add Images Add SmiliesPosting Help

Please check your spelling (press "Check Spelling" above)


Similar topics:More similar topics...
Flap Settings/Landing Gear posted Fri Jun 13 2003 20:43:27 by JohnnyFitz
Airlines And Different Flap Settings? posted Fri Dec 16 2005 18:52:34 by Qantas744ER
747-400 Flap Settings posted Sat Mar 26 2005 21:11:15 by Wdleiser
Question: High T/O Flap Settings In "the Old Days" posted Fri Sep 17 2004 18:03:59 by Happy-flier
Flap Settings posted Mon May 17 2004 07:12:04 by Bigphilnyc
Boeing 727-200 Flap Settings posted Thu Jan 29 2004 15:03:38 by Luisinho
747 Series Flap Settings posted Wed Oct 1 2003 01:00:31 by 744lover
B744 Landing Gears And TE Flaps Illustrations posted Mon Jul 29 2002 15:07:44 by Avi
Boeing 707 Flap-settings posted Thu Feb 28 2002 21:08:27 by Blackbird
Flap Settings On Airbus. posted Sun Feb 24 2002 05:56:28 by Mr.BA

Sponsor Message:
Printer friendly format