The Army doesn’t only want much faster aircraft: It wants them to cost the same to build, operate, and maintain as its current helicopters. Otherwise it can’t fit them into an unchanging aviation budget. That’s an awfully high bar.

While officials as senior as Chief of Staff Mark Milley have previously talked about Army hypersonics in general terms, today’s statements by both the Army’s Russell and OSD’s Miller were unequivocal: The Army wants a ground-launched hypersonic weapon.

“Does that mean you can’t talk to us? No,” Assistant Secretary Bruce Jette said. “What it means is, if you have secret sauce, reserve the secret sauce, make sure we understand what you want to talk about. Only when we get down to contract discussions should you bring out the secret sauce.”