Ground Based Helicopter Simulation

This paper examines the reasons for the expanding role of rotorcraft ground based simulation and the broad range of requirements for both analytical and piloted simulation support in an industrial setting such as that existing at Sikorsky Aircraft. In order to be effective in supporting these requirements a highly structured approach to simulation was developed based on a modular library system. This approach and its attributes are discussed, together with a presentation of the analytical content of the primary modules comprising the system library. The level of sophistication believed necessary is identified. This paper also addresses some of the issues associated with simulation, in particular, the requirements of real-'time simulation and how it can be accommodated. The facility hosting this simulation system is briefly described. The process of verification and validation of simulation is outlined and noted as being essential for confidence in its application to design. It is concluded that simulation must expand beyond the traditional requirements of handling qualities and embrace the needs of total system integration.