[[File:Multi-function indicator example1.svg|thumb|right|A schematic example of a multi-function display]]
A '''multi-funxxctionfunction display''' (MFD) (part of [[multi function structure]]s) is a small screen ([[cathode ray tube|CRT]] or [[LCD]]) in an aircraft surrounded by multiple [[soft key|buttons]] that can be used to display information to the [[aviator|pilot]] in numerous configurable ways. Often an MFD will be used in concert with a [[primary flight display]]. MFDs are part of the digital era of modern planes or helicopter. The first MFD were introduced by air forces. The advantage of an MFD over analog display is that an MFD does not consume much space in the cockpit. For example the cockpit of [[RAH-66|RAH-66 "Comanche"]] does not have analog dials or gauges at all. All information is displayed on the MFD pages. The possible MFD pages could differ for every plane, complementing their abilities (in combat).
Many MFDs allow the pilot to display their navigation route, moving map, weather radar, [[NEXRAD]], [[Ground Proximity Warning System|GPWS]], [[Traffic Collision Avoidance System|TCAS]] and airport information all on the same screen.
