Originally Posted by Flap 5
Any further reduction inthrust due to noise abatement is another matter.
I am yet to work for a jet operator who reduces to/ beyond climb thrust for noise purposes?? All the noise sensitive airports require either a turn shortly after takeoff to avoid overflying the noise sensitve area, or else a climb to 1500' AGL before reducing to climb power and delaying flap retraction to around 3000' AGL. I am no expert, but I suspect maintaining as high a thrust setting as posible, and keeping the speed back decreases the noise footprint on the ground much quicker than reducing to a much lower thrust setting (much quieter onboard), whilst only just maintaining a rate of climb.
You are indeed correct as to why we reduce
to climb thrust.
PP