Model number: RMI-13 Code name: Portman Unit type: mass production amphibious fourth generation knightmare frame Manufacturer: Holy Britannia Empire Operator: Holy Britannia Empire First deployment: unknown Accommodation: pilot only, in standard cockpit in torso Dimensions: overall height 4.69 meters Weight: combat weight 5970 kilograms Armor materials: unknown Powerplant: energy filler, replaceable electrical cartridge, uses Yggdrasil drive superconductor transfer system, power output rating unknown Equipment and design features: landspinner high-mobility propulsion system, mounted in legs; cockpit ejection system Fixed armaments: 2 x slash harken, mounted on chest; 4 x torpedo launcher, mounted two in each shoulder
Technical and Historical Notes
A part of the fourth generation of Knightmare Frames, the RMI-13 Portman is the first (and apparently only) amphibious Knightmare to be produced. Based on data from the RPI-11 Glasgow, much of its outward design is made with hydrodynamics first in mind. In addition to the standard slash harkens, the Portman also mounts a set of torpedo launchers in its shoulders, primarily useable while cruising through water. 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. During the battle on Shikinejima Island, Princess Euphemia Li Britannia commandeers a Portman in a failed attempt to warn Suzaku Kururugi of an incoming Britannian bombardment, aimed at wiping out the Order of the Black Knights. Despite being an experimental model, the Portman is fielded during Britannia's war with the European Union, and its success inspires them to produce an upgraded model, the Portman II.