Originally Posted by OneDayCloser

I don’t disagree with you regarding the loss of audio comprehension during a high stress situation. The only reason I said the Captain could retain abort authority is to satisfy your idea that FOs doing so would cause a massive increase in unnecessary RTOs.

The reality is, I believe the safest course of action is dual abort authority, as others have said. Whoever sees the issue, calls the abort and the PF accomplishes the procedure without question. Just like a go-around. We can work out the “why” after. If it causes a delay, so be it. Better that than take an aircraft in the air when one or more pilot isn’t comfortable with the situation or is missing the big picture of what is actually going on.

During the high speed regime, especially with the acceleration rates of our aircraft, there isn’t time to discuss “what you see” or maybe even process it to make a decision. I’ve flown 24 years in environments where this was the normal policy, have had a few RTOs over that time and it always worked very well. I’ve never experienced unnecessary aborts becaming a problem.

If FOs aren’t experienced enough to make the call or if they are making the call incorrectly, it’s a training and / or hiring problem.