Originally Posted by Otterbox

Scott Kirby ran AAs Highly profitable domestic RJ network before going to United. That network allegedly accounts for 50% of revenue dollars generated by AA.

AA scope allows 75% narrowbody fleet size of RJs with 40% being larger RJs (66-76 seat) and 60% smaller RJs (less than 65 seat) plus an additional 10% of narrowbody fleet size of Turboprops less than 50 seat.