Editing Model aircraft (section)

==Aerodynamic research and mock-ups==
[[File:LN-10 mg 7893.jpg|thumb|[[Wind tunnel]] model of a Loire-Nieuport LN-10 floatplane]]
Models are made for [[wind tunnel]] and free-flight research tests and may have components that can be swapped to compare various fittings and configurations, or have features such as controls that can be repositioned to reflect various in flight configurations. They are also often fitted with sensors for spot measurements and are usually mounted on a structure that ensures the correct alignment with the airflow, and which provides additional measurements. For wind tunnel research, it is sometimes necessary only to make part of the proposed aircraft.

Full-scale static engineering models are also constructed for production development, often made of different materials from the proposed design. Again, often only part of the aircraft is modelled.