Originally Posted by
RJ85FO
If done correctly, you cannot.
Here is what sometimes happens:
Say you are going to set 92% on the CTOT control panel. The PF advances the power levers to say 85% instead of somewhere in the 77-82%. The CTOT switch is moved to APR and you see 92% on the guages. Perfect, well, about 100 knots or so or even during acceleration after climb, the torque has actually bloomed to 95% (based on where the power levers are set). Some pilots do not notice this during the takeoff roll or initial climb so when they do dial down the CTOT, they are left with the 95%.
Ideally, and you will get there with practice, when you dial down the CTOT after takeoff, you will not have to move the power levers and the Torque will remain constant.
Ok, I misunderstood your original post. I though you meant the Torque would baloon up when dialing down the CTOT. Kind of like how the power drops like a rock when someone pulls back the PL's without dialing down the CTOT first and you get that huge dropoff when they see what they have been doing.
What you speak of I see all the time. CTOT set to 90%, PL advanced and APR/CTOT set. On climbout you look down and Torgue is at 98%.