Yes the CX RR powered 777's do the same. we don't know why, it just does.
No problems, It settles down to correct thrust and speed in about 2 mins.
Just keep and eye on it, as one should do anyway.
And the N1 does the same, it follows the EPR/Thrust lever movement back and then forward again, as it should.
Oh and technically the engine is a Trent 800, a derivative of the RB 211.
Last edited by ACMS; 23rd Sep 2008 at 02:30.