Goldenrivett
Operational Liasion Meeting Fly By Wire 2004
It says:
- At high thrust levels of DERATE, the TAKE OFF THRUST may fall below the CLB THRUST
- An increase of thrust must be avoided when pulling the liver to the CLB detent
- An automatic transition sequence to MAX CLB has been implemented for the different engine models.
There is diagram which shows that in CLB detent for 20 seconds the thrust is frozen at derate value and in next 40 seconds gradually increases to Climb.