p factor on large bypass engines

[daveysamesocks]

Does anyone have any info on p factor as it relates to high by pass engines? I notice that I'm forever triming the rudder during climb out and desent just like the dash-8!

[AlbertRoss]

I've had the same thoughts since going from the 737-300/400 to the -700. We have 3 so far and all 3 need a bootfull of right rudder in the cruise. As it's on all 3 I don't reckon it's a rigging problem, and the fueselage of the -700 is the same as the -300, so I also put it down to P factor. Any other ideas ? :confused:

[ironbutt57]

thermal disparities inside certain rudder pcu's causes rudder displacement inflightwith the pedals neutral...it is very slight most noticable at speeds 250-270 kts and above