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Forum: Tech Log

19th Feb 2012, 20:42

Replies: 27

B747-400 Heavy Vibration After Take-Off

Views: 18,653

Posted By Joetom

As Bolty says, all very good and well understood....

As Bolty says, all very good and well understood.

So aircraft will be ok with the vibs problem.

1, Vibs noticed by wheels not stopped spinning at correct time durin u/c retraction.

2. Vibs...

Forum: Tech Log

16th May 2010, 15:25

Replies: 27

B747-400 Heavy Vibration After Take-Off

Views: 18,653

Posted By Joetom

WHBM, Noted. But if wheels/tyres are...

WHBM,

Noted.

But if wheels/tyres are designed for random stop point to even out wear during operation/landing, stopping at same/similar point will lead to tyres being replaced early due to...

Forum: Tech Log

14th May 2010, 21:46

Replies: 27

B747-400 Heavy Vibration After Take-Off

Views: 18,653

Posted By Joetom

I thought heavy vibs during gear up between doors...

I thought heavy vibs during gear up between doors 3 and 4 may be down to ALTN anti skid valves (used during this operation) that do not maintain correct pressure.

From memory, these valves should...

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