A remote electronic unit acts as an interface between various systems and components aboard modern aircraft and spacecraft. A data concentrator unit, a remote interface unit, and a remote terminal unit are some of the subsystems of a remote electronic unit used in an aircraft. A remote electronic unit is a highly advanced and reliable device that performs functions to control different systems and subsystems.

The Remote Electronic Unit vendors are placed into 4 categories based on their performance and reviews in each criterion: “visionary leaders,” “innovators,” “dynamic differentiators,” and “emerging companies".

The companies that fall under this category generally receive high scores for most of the evaluation criteria. They have a well-established product portfolio and a very strong market presence. They offer mature and reputable products and services and have strong business strategies.

Dynamic differentiators are the established vendors of radar simulators with strong business strategies. However, they have weaker product portfolios as compared to their competitors. They generally focus on a specific type of technology related to a particular product.

Innovators are the vendors that have demonstrated substantial product innovations as compared to their competitors. They have an extensive product portfolio. However, they do not have very strong growth strategies for their overall business.

Vendors with niche product offerings, who have started to gain their foothold in the radar simulator market, fall under this category. They do not have strong business strategies as compared to other established vendors. They might be new entrants in the market and require some time before gaining significant traction in the market. A remote electronic unit is an electronic device that manages flight control surface actuators of an aircraft and its interface with integrated flight control electronics. The system can control the wing surface actuators, such as ailerons, flaperons, elevators, rudders, stabilizers, high-lift systems, and new wingtips. Control systems enable a pilot to adjust and control the flight attitude of an aircraft. Flight control systems comprise primary and secondary flight control systems. Landing gear is one of the heavy components installed in aircraft and accounts for almost 4% to 6% of the overall take-off weight of an aircraft. A landing gear plays a crucial role in aircraft ground operations, such as aircraft parking, as well as during take-off and landing. It is used to control the extension and retraction of the undercarriage leg and the steering of the nose wheel on the ground. A remote electronic unit provides a high level of functionality to enable safe flight and landing without the primary flight control computers. In a fuel system, an REU handles multiple functions, such as engine and auxiliary power unit feed, gauge fuel quantity, and communicate with the integrated modular avionics fuel gauging and management software.