Originally Posted by
dixi188
Also, why isn't there an interlock between power levers and speed brake levers so that if power is applied the speed brakes are stowed?
Because at high altitude when you hit a wind shear or mountain wave and the speed starts moving rapidly toward Mmo, you need to use the speed brakes to slow instead of ripping the throttles toward idle. I've seen it done the other way, and it isn't pretty.