Boeing727
Topic Author
Posts: 820
Joined: Sat May 22, 1999 1:32 am

B747 Steerable Landing Gear...

Sat Sep 25, 1999 2:28 am

I read in a B747 book that the earlier models had some main landing gear wheels that were able to turn for taxiing purposes...is that true, because I have never heard about this. Thanks


Regards, Boeing727
 
kaitak
Posts: 9205
Joined: Wed Aug 18, 1999 5:49 am

RE: B747 Steerable Landing Gear...

Sat Sep 25, 1999 3:09 am

Yes, this is still used and indeed, it was not available on the earliest 747s and a few taxiway runoffs (nothing serious, but enough to get the good people of Seattle thinking) caused Boeing to offer this. There is a "bodygear steering" switch on the pilots' overhead panel (I'm not completely sure about its location - comments anyone?), used for taxiing. The idea is that the bodygear steering would be deactivated during the takeoff and landing.
I'm not aware of any incident where the failure to disengage this before takeoff led to an accident!
 
AA7771stClass
Posts: 288
Joined: Tue Jun 29, 1999 9:26 am

RE: B747 Steerable Landing Gear...

Sat Sep 25, 1999 7:30 am

The 777-300 has steerable main gear bogies also along with cameras to help show you where you are on the taxiway. These are placed showing both main carriages and the nose wheel. It seems necessary since it's the longest airliner.
 
JETPILOT
Posts: 3094
Joined: Tue May 18, 1999 6:40 am

RE: B747 Steerable Landing Gear...

Sat Sep 25, 1999 11:46 am

The DC8 also has main wheel bogies that caster when turning to reduce tire scrub on the inside bogie tires.

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