Portman

A unit of the fourth generation of Knightmare Frames, the RMI-13 Portman (ポートマン, Pōtoman) is the first amphibious Knightmare to be produced. Most battles that required the use of Knightmare Frames took place on land. Contrastly, the Portman is specially created to fill the role of a Knightmare Frame unit for the Britannian Navy.

Design and Specifications
Much of its outward design is made with hydrodynamics as first priority and it is capable of transforming into a Cruiser Mode. In addition to the standard Slash Harkens, the Portman has a set of torpedo launchers mounted in its shoulders, and a hydro jet pack mounted on its back. Though intended to operate primarily underwater, the Portman can also be used on land, though its speed and combat skills are poor in this area. Though, near the end of season 2, the Portman hardly makes any appearance and is now possibly being replaced by the Portman II. In its designation, RMI stands for the Royal Marine Infantry.