Originally no larger than a man, they increased in size until some of the biggest were nothing less than small ships. This was necessary in order to carry the enormous amount of fuel, armament, and electronics necessary to accomplish their assigned mission. The linear frame is the main control element of the exo-armor. The exo-armor's onboard drive computer then interprets these motions and moves the armor's limbs accordingly, firing apogee motors as needed to compensate. The linear frame control system gives the exo-armor an uncanny maneuverability as well as a strangely human grace.
Space flight is controlled via special joysticks located near the hand controls.
A minimum of training is necessary to fully control the armor, even if the computer can provide verbal and visual assistance. The cockpit's internal walls are covered with layered monitors linked to various sensors and cameras in the outer hull of the exo and display an unobstructed view of the world around the vehicle. Since an exo-armor is designed to emulate and reproduce the movement of the human body, it is built around a composite skeleton to which the various components and actuators are attached. Limited flexibility enables the frame to absorb casual kinetic stress without any damage. The smaller exo-suits almost never use hydraulics, as myomars are easier to adapt to the human form.