dark light

  • EGNM

Speekbrakes deployed before Landing

Hi all,

been up to Leeds today and was watching the bmi F100 arrive from LHR when i noticed that it had it’s speedbrake deployed before touchdown, as the 146 regularly does (asm seen with the Titan 146 in from Nurnburg today), yet the KLMUK F100 didn’t use this procidure – ids their just a differance in airlines SOPs?

Member for:

19 years 1 month

Posts:

3,375

Send private message

By: EGNM - 2nd March 2003 at 13:25

thanks very much for clarifying that Wys! – that site mentioned Geedee will be getting a good look over tonight!

Member for:

19 years 1 month

Posts:

990

Send private message

By: geedee - 1st March 2003 at 20:05

Guys

check out the following site :

http://www.aviationpics.de/

(Sorry I cant get a link to work on this …dont know how !)

CANCEL THAT LAST BIT…WHADYA KNOW IT WORKED…YIPPEE

check out the Movies…Military section…there is a cracking video clip of a C130 Herc coming in and firing…believe it or not…’retro rockets’…. to slow down and stop a bit quicker than normal….only trouble was the rockets fired when he was up about 50 feet and the resultant ‘arrival’ left his his wings not attached and the plane at 90 degrees angle to his landing run !!!

Got some really good stuff there like…no, you have a look

Member for:

19 years 1 month

Posts:

3,331

Send private message

By: wysiwyg - 1st March 2003 at 16:36

Wing upper surface speedbrakes and tail clam door type speedbrakes act in very different ways. Wing devices act more as lift reducers than drag generators whereas tail mounted devices are pure drag items. Wing devices must, must, must not be deployed through the actual landing as it is dangerous to mess about with lift generation at such a critical time. They are used in the descent to increase the descent rate when required and sometimes to assist in speed reduction. Rear mounted devices are usually used to increase drag in the final stage of an approach so that the jet engines can be spooled up to a higher thrust without accelerating the aircraft. This means that in the event of a go around the engines will respond much quicker as jet engines are notoriously slow to wind up from low thrust settings.

Member for:

19 years 1 month

Posts:

3,375

Send private message

By: EGNM - 28th February 2003 at 19:06

i’ve seen the spoilers deployed a few times – most notably in steep desents – B762 last year inbound GCRR – also when “Santa” was supposed to lad on our a/c the pilot slapped out the spoilers and slowed her right down!

Member for:

19 years 1 month

Posts:

2,815

Send private message

By: mongu - 28th February 2003 at 18:59

When I landed at KEF on Tuesday, the spoilers were deployed for ages during the descent – about 5 minutes. First time I’ve noticed that.

Sign in to post a reply