The Northrop Grumman crew at plant 42 in Palmdale, CA have officially announced their entry of “The Spirit of Arizona” B-2 Bomber into the flour bomb competition occurring on April 17th, 2015 in Mojave, CA. The team at Northrop initially attempted to claim all 120 flour bombs allocated for the competition but were limited to two. They have released the photo above of their practice attempts in an undisclosed location.
Joseph Arias and Ken Hetge are reviewing the implied but not explicitly documented "Low Horsepower" restriction to competitors. They have stated that they will get back to us with the ruling on whether or not the Plant 42 based team will be allowed to participate in the next 24 hours.
I will update when I know more, in the meantime any strong opinions can be submitted via the comment section below.