Too bad the new FCOM versions did away with the FCBulletins.
But if you still got access to them, a bulletin states that, with the FADEC working, the fastest rate of thrust reduction the FADEC would allow is 1% PER SECOND.
Meaning, even if you close the thrust levers at the speed of light, thrust reduction would still go no faster than 1% per second.
That's why I don't get all this concern re Open Des.
