NADP1 in Europe. What altitude do you reduce to CL thrust?

[B-HKD]

I am not only implying it,I am saying it and I am not the pesron who defined NADP1,ICAO did.

Now if all those airlines you are apparently familiar with decide as a matter of simplicity to tell you to accelerate AT 3000 ft (thrust reduction at 1500) which is the old ICAO A and mostly used by crews then fine.
Now if you reduce the thrust at 1500ft and accelerate at 2000ft,you will be in NADP 1 and save fuel in the process.

As you correctly stated, 1500'/3000' is the old ICAO A.

However, 1500'/3000' is perfectly within the guidance of NADP1 and thus it can be considered NADP1.

As you know NADP1 is defined by:

1. On reaching an altitutdeat or above 800' AGL reduce to climb thrust

2. At no more than 3000' AGL accelerate and retract flaps/slats on schedule.

So yes, accelerating at anything > 3000' AGL cannot be called NADP1. However your, "you are pushing your luck" comment has me confused as to what is wrong with a accelerating AT 3000' AGL?


The reason various operators have adopted the same figures for NADP1 as they used for ICAO A, is because they are still valid and perfectly acceptable under NADP1.