Max777geek
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Posts: 159
Joined: Wed Mar 07, 2007 6:20 pm

744 Partial Slats?

Fri Mar 28, 2008 7:12 am

Hi folks

it's me or in this picture


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Photo © Seungho Cha - Korea Aero Photos



the foreground 744 has only outer slats extended ?

Is that possible ? the flaps looks the same, as long as I can see the background ones.

Thanks in advance for your help.
 
wilco737
Posts: 7279
Joined: Sun Jun 20, 2004 12:21 am

RE: 744 Partial Slats?

Fri Mar 28, 2008 7:18 am

During reverse thrust the inboard and the ones between the engines retract to reduce the risk of object beeing thrown upwards from the reverser and damage the slats...

WILCO737 (MD11F)
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fr8mech
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RE: 744 Partial Slats?

Fri Mar 28, 2008 9:18 am

In the name of accuracy (and my general anal persuasion) B747 type aircraft do not have slats. They have variable camber flaps installed outboard of the inboard engines and krueger flaps installed inboard of the inboard engines.

And yes, the B744, and some B747 classics, will stow some of the flap segments to protect the leading interior from FOD.
When seconds count...the police are minutes away.
 
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jetmech
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RE: 744 Partial Slats?

Fri Mar 28, 2008 11:07 am



Quoting Max777geek (Thread starter):

Fast forward to about 5:45 to see it in action.



Regards, JetMech
JetMech split the back of his pants. He can feel the wind in his hair :shock: .
 
B777Neuss
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RE: 744 Partial Slats?

Sat Mar 29, 2008 10:23 am

But why do they extend again after idle?

B777Neuss
 
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jetmech
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RE: 744 Partial Slats?

Sat Mar 29, 2008 10:57 am



Quoting B777Neuss (Reply 4):
But why do they extend again after idle?

Usually, the flap handle will not be moved during the thrust reverse procedure, that is, they crew will wait until they are off the active runway before they clean up the flaps and leading edge devices. Because the flap handle is still in the extend position after the TR's are retracted, the leading edge devices will re-extend.

Regards, JetMech
JetMech split the back of his pants. He can feel the wind in his hair :shock: .

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