The current fleet of Britannian Knightmare Frames uses the Royal Panzer Infantry (RPI) model series designation. Verbally, the name sounds like nightmare but in spelling, it refers to a knight's mare.
The cockpit, which is set in the protruding 'hump back', can be ejected in case of emergency and is equipped with parachutes. Their main standard weapons are handheld rifles, shoulder or wrist-mounted Slash Harkens (wired rocket anchors), Stun Tonfas, lances and airburst hand grenades. Their power source is also known as the Yggdrasil Drive and their later models now incorporate nuclei made of Sakuradite, a material now paramount in superconductivity technology.
They are also equipped with a sophisticated 'Factsphere' open sensor camera on the head or torso to gather visual data. First used during the invasion of Japan, the Knightmare Frames (ナイトメアフレーム, Naitomea Furēmu ?) are mecha designed by the Britannia Empire, using self-propelled roller skate systems christened 'Landspinners' to achieve high mobility and speeds and gain superiority on modern battlefields.
