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Deploying The Thrust Reverser While Flairing?  
User currently offlineLH492 From Germany, joined Jan 2006, 208 posts, RR: 11
Posted (8 years 7 months 2 weeks 1 day 19 hours ago) and read 4136 times:

Hi,

I came across this picture and wondered if anybody could explain, why the pilot deploied the thrust reversers, even though the plane did not touch down yet.

http://www.flugzeugbilder.de/show.php?id=512132

thanks in advance,

Philipp


Carpe Diem, Seize The Day
15 replies: All unread, jump to last
 
User currently offlineRichardPrice From , joined Dec 1969, posts, RR:
Reply 1, posted (8 years 7 months 2 weeks 1 day 18 hours ago) and read 4122 times:

Certain Russian aircraft (and the VC-10, which that isnt) can deploy reverse thrust in flight as a speed brake.

Thats what you are seeing.


User currently offlineBrettdespain From United States of America, joined May 2005, 178 posts, RR: 9
Reply 2, posted (8 years 7 months 2 weeks 1 day 18 hours ago) and read 4122 times:

It was very common to use thrust reversers in-flight on the DC-8 as well, although I don't remember seeing it done during the landing flare.


V1...Rotate.
User currently offlineTrekster From , joined Dec 1969, posts, RR:
Reply 3, posted (8 years 7 months 2 weeks 1 day 18 hours ago) and read 4078 times:

The 146's deploy there speed breaks pre landing

Odd sight when i first saw it


User currently offlineMCOflyer From United States of America, joined Jun 2006, 8704 posts, RR: 16
Reply 4, posted (8 years 7 months 2 weeks 1 day 18 hours ago) and read 4063 times:

I heard the DC-6 and DC-7 do it as well. I read the Flying tiger book by Moldrem and it said someone doing reversing the inboards doing decent.

MCOflyer



Never be afraid to stand up for who you are.
User currently offlineLH492 From Germany, joined Jan 2006, 208 posts, RR: 11
Reply 5, posted (8 years 7 months 2 weeks 1 day 18 hours ago) and read 4028 times:

Quoting RichardPrice (Reply 1):
Certain Russian aircraft (and the VC-10, which that isnt) can deploy reverse thrust in flight as a speed brake.

But wasn´t that the cause of the Lauda Air 767 Crash in Thailand?
If memory serves me right, the reverse thrust deployed in mid flight causing the plane to crash. After that incident, planes got modifications in order to prevent similair accidents. If those planes you mentioned are able to deploy their thrust reverser in mid flight, isn´t there still a chance, that such an accident could happen again?



Carpe Diem, Seize The Day
User currently offlineAdam727 From United States of America, joined Aug 2003, 131 posts, RR: 0
Reply 6, posted (8 years 7 months 2 weeks 1 day 18 hours ago) and read 4017 times:

I thought the concorde could deploy its reversers inflight also.

User currently offlineTrekster From , joined Dec 1969, posts, RR:
Reply 7, posted (8 years 7 months 2 weeks 1 day 18 hours ago) and read 4007 times:

Quoting LH492 (Reply 5):
the reverse thrust deployed in mid flight causing the plane to crash

Yes, that was one side and at high altitude, so ripping the wing off. one engine full one way, one engine full teh other, something has to give


User currently offlineRichardPrice From , joined Dec 1969, posts, RR:
Reply 8, posted (8 years 7 months 2 weeks 1 day 18 hours ago) and read 4007 times:

Quoting LH492 (Reply 5):
If those planes you mentioned are able to deploy their thrust reverser in mid flight, isn´t there still a chance, that such an accident could happen again?

The 767 wasnt ever designed to deploy reverse thrust off the ground, hence the ability for the engines to deploy independantly. This is corrected on those aircraft taht can deploy in operational flight.


User currently offlineVC10 From United Kingdom, joined Nov 2001, 1419 posts, RR: 15
Reply 9, posted (8 years 7 months 2 weeks 1 day 18 hours ago) and read 3978 times:

Quoting RichardPrice (Reply 1):
and the VC-10, which that isnt) can deploy reverse thrust in flight as a speed brake.

I think you might have meant the Trident. The VC-10 had wing spoilers which it could deploy as very good speedbrakes if required

littlevc10


User currently offlineRichardPrice From , joined Dec 1969, posts, RR:
Reply 10, posted (8 years 7 months 2 weeks 1 day 18 hours ago) and read 3957 times:

Quoting VC10 (Reply 9):
I think you might have meant the Trident. The VC-10 had wing spoilers which it could deploy as very good speedbrakes if required

Actually no, on the few airframes produced prior to 1965 the inboard engines could have their reverse thrust buckets deployed inflight. These were removed after 1965 due to tail buffetting problems and thus the capability was removed with them.

The Trident could as well, you are correct.


User currently offlineVC10 From United Kingdom, joined Nov 2001, 1419 posts, RR: 15
Reply 11, posted (8 years 7 months 2 weeks 1 day 17 hours ago) and read 3942 times:

Richard ,
I was on VC-10 from 1964 to 1975 with BOAC and no one ever selected reverse in flight.Now if you mean on the test aircraft well I cannot say anything about that as I was not involved.

littlevc10


User currently offlineRichardPrice From , joined Dec 1969, posts, RR:
Reply 12, posted (8 years 7 months 2 weeks 1 day 17 hours ago) and read 3920 times:

Quoting VC10 (Reply 11):
I was on VC-10 from 1964 to 1975 with BOAC and no one ever selected reverse in flight.Now if you mean on the test aircraft well I cannot say anything about that as I was not involved.

It was definitely a capability built into the first dozen or so airframes before the inboard reversers were removed from the design, my grandfather flew them and used to regale me with tales of the quick descents he made due to this feature (and no, he never flew the Trident).


User currently offlineOneSkyJet From United States of America, joined Oct 2005, 86 posts, RR: 2
Reply 13, posted (8 years 7 months 2 weeks 1 day 16 hours ago) and read 3844 times:

I have flown a number of times on IL-62s and can tell you definitively that they commonly apply reverse thrust prior to and at the flare.

Weird but true. Actually makes for an amazinglys smooth landing.


User currently offlineVC10 From United Kingdom, joined Nov 2001, 1419 posts, RR: 15
Reply 14, posted (8 years 7 months 2 weeks 1 day 16 hours ago) and read 3837 times:

Richard,

Well I defer to grand father's knowledge, but whilst the
Standard VC-10 had reversers on Engines 1 & 4 only, the Super still had reversers on all 4 engines until after I left the fleet if my memory still serves me.

Anyway not to worry, and who knows I might have flown with your grandfather.

God that makes me feel old  old 

littlevc10


User currently offlineScbriml From United Kingdom, joined Jul 2003, 13252 posts, RR: 46
Reply 15, posted (8 years 7 months 1 week 3 days 4 hours ago) and read 3577 times:
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Our Russian friends have been doing it for a long time!
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