===Not pylon turn, but extremely compelling and definitely needs its own article === 
 Wow!  That is one excellent source you found there, Saehrimnir (the USAF ref you added to the article).  I'm converted.  The thing is real and we have a definitive reference.  The ref even gives nine of it's own refs we can track down. 

 The maneuver is related to pylon turns in that the speed and turning radius of the airplane is part of the mechanics, and it deserves a mention in the PT article.  But, it doesn't look like it's actually a Pylon Turn, the altitude doesn't need to be the particular altitude required of a PT.  The maneuver is so compelling (and definitely notable!) that I think it calls for its own article as a distinct maneuver. 

 The word "pylon" appears three times in the reference  in the phrase "on-pylon turn".  The words suggest a pylon turn is required, but I question that.  From what I can tell, in the context of gunships, being strictly on-pylon-altitude isn't required and the phrase "on-pylon turn" in the ref allows for varied altitude.  That would explain the use of the term in the ref for something that isn't actually a pylon turn.  That's my best guess at least.