Board Thread:General Discussion/@comment-3522837-20150415174546/@comment-114.124.27.246-20150420025803

Similarity in aircraft naming does not mean they come from the same lineage. Similarity in naming mea s they come from the same manufacturer. Like Su-XX planes are made by Sukhoi, Me-XX by Messerschmitt, etc. But this XFA means Experimental Fighter-Attacker, only representing its role like American aircraft naming. And in American experimental aircraft history, similar names does not mean the same manufacturer, like Lockheed YF-22 and Northrop YF-23.