Yep, still puzzling me a little bit...
With PMC operating, N1 remains constant througout the acceleration, so thrust
decreases with speed.
Then, during climb, thrust remains constant.
With PMC off, N1 increases during acceleration, so let's say thrust remains constant? (is that why Vmcg is 4-6 kts higher without PMC?)
Then thrust decreases with altitude.
Instinctively, I would have assumed thrust deterioration during the first few hundreds of feet of climb was less than the thrust gained (or kept constant) by the increasing N1 during acceleration.
But, if Boeing put a weight penalty with PMC off, actually this is not the case.
Now I'm seeing it more clearly, thanks for your help.
LEM
