Fly3. Just of background interest, try selecting TOGA whilst climbing at high altitude. I have, the clb limit = TOGA limit... nothing happens. Clb thrust seems to be at the overall limit at higher altitude. I've tried both on IAE and CFM.
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I find it odd, for example, in a mountain wave in cruise with decreasing speed when people 'slam' in TOGA when Athr is commanding max thrust anyway or conversely when a wave causes overspeed with engines commanded idle by Athr and people close the thrust levers. Just adds more pilot work and achieves nothing.