American submarines are expected to extend their advantages in the undersea domain.
For the first time, the US Navy has fitted a new form of propulsion, magnetohydrodynamic drive (abbreviated the MHD), to a Virginia-class submarine. This promises to make the submarine nearly undetectable, the holy grail of navy warfare.
The Magnetohydrodynamic drive will be developed under the PUMP program by the Defense Advanced Research Projects Agency (abbreviated DARPA), first reported...