Message posted by Griffon_314 on September 29, 2015 at 21:01:47 PST:
-neither prototype has flown yet ...and many other details in the article.
-two prototypes are very different designs
-RCO running the program
-Bigger than UCLASS, smaller than B-2
-extensive wind tunnel testing done
-robust electronic attack capability onboard
...and many other details in the article.