This project describes a design and implementation of software environment using MATLAB R2006A for simulating and visualizing high performance helicopter systems. The environment also accommodates data exchange. The design used MATLAB as a platform on personal computer directly interfaced to the helicopter compare via its remote control. Hence, the design method is able to control the helicopter using by computer as well as remotely controlled. There are four main parts; hardware (transmitter), helicopter model, remote control and software (MATLAB). The computer is interfaced to a transmitter on the helicopter by a parallel connection. This helicopter in consist of 4 channel transmitters and it can simulate most flying attitudes of modem helicopter. A helicopter visualization model is designed and implemented in MATLAB and Simulink by developing Graphical User Interface (GUI). This model will be used to visualize a scaled model helicopter in order to assess the helicopters attitude during different fly modes.