rendezvous
Posts: 531
Joined: Sun May 20, 2001 9:14 pm

747 On Landing

Sat Jun 23, 2001 12:17 pm

While spotting today I noticed that the leading edge flaps inboard of the outer engines on the 747 retract on landing. I was wondering why this happens.

~Rdz
 
VC-10
Posts: 3546
Joined: Tue Oct 26, 1999 11:34 am

RE: 747 On Landing

Sat Jun 23, 2001 1:00 pm

It's a throw back to when turbine reversers were fitted. It was to prevent FOD damage in that area. I am surprised to hear there are still a/c around with that system still operative.
 
rendezvous
Posts: 531
Joined: Sun May 20, 2001 9:14 pm

RE: 747 On Landing

Sat Jun 23, 2001 1:12 pm

Really? I saw several 747-400 aircraft doing this...
 
VC-10
Posts: 3546
Joined: Tue Oct 26, 1999 11:34 am

RE: 747 On Landing

Sat Jun 23, 2001 1:28 pm

Ah.............we are talking -400, I was talking Classic. The reason for the operation is the same however.
 
air2gxs
Posts: 1443
Joined: Mon Jun 18, 2001 1:29 pm

RE: 747 On Landing

Mon Jun 25, 2001 4:01 pm

Yeah, I'm suprised any classic still has them. Every airplane we took out of the desert we de-activated that function.

I really thought it was an industry-wide, fleet-wide effort.

 
CX Flyboy
Posts: 6056
Joined: Sun Dec 26, 1999 6:10 pm

RE: 747 On Landing

Mon Jun 25, 2001 5:28 pm

We have that on our 747-400s when the thrust reversers are used. The indication in the cockpit is that the flap position indicator on the screen changes from green to magenta, and a few seconds after the reversers are closed, the indication goes back to green again as the leading edge reconfigures back to whatever the flap lever position is at.

Who is online

Users browsing this forum: Baidu [Spider] and 21 guests

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos