The airframe itself is deliberately simple in its construction, while the use of maintenance-intensive components was kept to an absolute minimum and, where necessary, these were made as accessible and readily serviceable as possible. Manufacturing of the Freighter was eased by many components being standardised and identical where feasible; this ideology was also applied to elements of the internal structure, such as the longerons, frames, and skin. The floor of the main hold is covered by wooden panels, designed to be easily replaceable in the event of damage; these were supported by a floor structure of deep transverse beams with a pair of longitudinal strips, strengthened by a support beam. Another ease-of-maintenance decision was to use cables for the control system where practical, while all flight control surfaces had fabric coverings, which was both light and easy to replace.