Display apparatus for flight control

A display apparatus for flight control comprises a digital scan converter which converts ASDE video signal into a radar display by a television scan video, a CPU portion which receives a radar target position via LAN and generates a computer graphic display by adding an operation information from operation panel, a picture synthesizing portion which superposes computer graphic display from CPU portion on a radar display, and CRTs which display a picture synthesized at synthesizing portion. ASDE radar signal is converted to television scan video signal via the digital scan converter. The computer graphic display is generated by adding an operation information to the target information such as an airplane at CPU portion. A radar display and a computer graphic display are synthesized at the picture synthesizing portion. Thereby various information necessary for flight control is displayed on CRT.