Navy Making Room for Railguns in Next Warship, But No Extra Investments

By: Megan Eckstein

THE PENTAGON – The Navy's next large surface combatant will have all the space, weight and power margins the sea service could need now and into the future to accommodate new weapons in development – but the director of surface warfare said the Navy would not accelerate weapons development to get them ready in time to outfit the new ships.

Rear Adm. Ron Boxall, OPNAV N96, spoke to USNI News on Aug. 28, in his first interview on the Future Surface Combatant program since its initial capabilities document was signed out by leadership.

Noting that the next large surface combatant would pull from some of the advances made with the Zumwalt-class destroyers (DDG-1000) – including potentially its integrated power system that could easily support laser guns, an electromagnetic railgun, powerful radars and other power-hungry technologies – Boxall told USNI News that the new large surface combatant represented an opportunity to put these technologies into the surface fleet whereas the legacy Arleigh Burke-class destroyers simply do not have the power and cooling capacity to do so.

“We're just excited that we think we do have something that is expandable, has SWaP-C (space, weight, power and cooling) for the future. I think all of us were kind of a little bit nervous about the DDG Flight III and whether we'll have long-term ability to put future energy weapons on there, or the power that we need for directed energy, lasers, things like that,” he said.

But just because the new ship will be able to support energy weapons doesn't mean Boxall wants to accelerate energy weapons development to ensure they're ready to field on the first new ships. He said moving to the Future Surface Combatant in 2023 is an “aggressive timeline” and that at some point the Navy will have to “snap the chalk line and say, this is what you have that's good enough to go on there” – and if a technology isn't ready, it would wait for fielding in a later block buy of the ship.

With the Navy already seeking a new hull to better support the Aegis Combat System and the AN/SPY-6(V) Air and Missile Defense radar – collectively called the DDG-51 Flight III capability – Boxall said he didn't want to force too many changes all at once.

“So I'm inclined to say, as long as we build it modularly, we're going to make those assessments in stride” in terms of inserting in new weapons as they come through the development process, he said.
“But I don't want to get too crazy about trying to accelerate new technology in the first of the class as we change hulls, which will hopefully be a hull that will be with us for a very long time.”

Full article: https://news.usni.org/2018/08/29/navy-making-room-railguns-next-warship-no-extra-investments