Hey, Lou, I'd like to drop two small items to trigger a story.  :D

First, the use of reverse thrust after touchdown together with the problem to maintain a "stable" airflow over the rudder. Problem with the 727 or a thing to disregard? I've read both versions so far, so we need a lourification on this.  :)

Second, and also focused on the rear engine mounts of some planes, is the icing problem when all the "air suck up arrangements" are in the back of the plane.
I've read that Boeing was very anxious about the whole icing thingy since "dropped" ice may enter the engines, unlike on planes where the engines are wing mounted.
I've read that, because of this awareness, even some roof mounted antennas were de-iced by active heating to protect the No 2 engine.