raymondu999 wrote:.......If the exhausts indeed turned to perfectly aero-neutral next year (except for basically the thrust they generate when pointed backwards anyways) who do we think this will benefit?
Just what does "aero-neutral" imply? The benefit derived from the exhaust flow is not specifically from "aerodynamics". Instead, it's more a case of using the kinetic energy present in the exhaust gas mass flow to assist with pumping air out from under the diffuser. More momentum transfer than simple aerodynamics.
As for minimizing any aero-effects produced by pointing the exhaust pipe exits aft, the pipes would have to extend several feet aft of the rear wing to be truly neutral. Thus, any thrust would simply be the result of the momentum of the exhaust gas mass being ejected out of the pipes.