Some time ago someone asked why the US changed their a/c designations, but I can't find the relevent thread. I found this which explains it all far better thatn I could. www.ibiblio.org/pub/academic/history/marshall/military/airforce/usaf_descriptions/fighter.txt Hope this is helpful.
KmPok: I beleive the thread was entitled Me 262 vs P-51. May have been on the bottom of page 1 and upper portion of page 2. I am going to add more on that thread over the next weeks..... ~E
