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B747 Steerable Landing Gear...  
User currently offlineBoeing727 From United States of America, joined May 1999, 970 posts, RR: 0
Posted (16 years 8 months 1 week 23 hours ago) and read 2149 times:

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

3 replies: All unread, jump to last
User currently offlineKaitak From Ireland, joined Aug 1999, 13265 posts, RR: 34
Reply 1, posted (16 years 8 months 1 week 22 hours ago) and read 2115 times:

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!

User currently offlineAA7771stClass From United States of America, joined Jun 1999, 296 posts, RR: 5
Reply 2, posted (16 years 8 months 1 week 18 hours ago) and read 2092 times:

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.

User currently offlineJETPILOT From United States of America, joined May 1999, 3130 posts, RR: 27
Reply 3, posted (16 years 8 months 1 week 14 hours ago) and read 2080 times:

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

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