Originally Posted by
p1fel
Am I correct the 'reduction gear chattering' was also known as 'lay shaft chatter'?
Oh that min 40 psi torque!!
Having to 'milk' the HP cock lever to prevent overtemp on engine start.
The 748 had the same 40 psi minimum for layshaft chatter, but I never did understand fully what layshaft chatter meant. And why was there such a big torque split on takeoff sometimes but no particular yaw from it.
Milking the HP cock seemed to only be an alternative to using the fuel trimmers.