Scinfaxi and Hrimfaxi
They are named after the Norse mythology characters Skínfaxi and Hrímfaxi. they are nuclear powered and can remain submerged for long periods of time. It is armed with burst missiles that are able to destroy anything below an altitude of five thousand feet. As well, the Scinfaxi carries F-35 and Harrier aircraft, while the Hrimfaxi is equipped with UCAV drones she can launch while submerged from a vertical launch system.