Good handling qualities in the maritime environment is crucial. The combination of high sea state conditions, turbulent airflow over the deck and degraded visual cues make it extremely dangerous and challenging.
AVT personnel have conducted detailed ADS 33E PRF helicopter simulation fidelity qualification for DSTO as well as UAV gust response analysis in the ship born environment. Being directly involved in FOCFT activities, AVT has a good understanding of the challenges faced when operating VTOL aircraft and UAV's in the maritime environment as well as the limiting factors influencing Ship Helicopter Operational Limits (SHOL'S).
Bandwidth Analysis. AVT have the expertise to conduct various ADS 33E PRF analysis including bandwidth analysis, attitude quickness and maximum rate analysis and is able to perform analysis of experimental flight test data to ascertain envelope limitations such as response amplitude attenuation and phase lag that lead to pilot induced oscillations (PIO's).
AVT can also conduct simulation qualification based on ADS 33E PRF mission task elements (MTE's). This is an extremely complex task requiring significant effort in terms of model development and analysis. Adequate frequency response identification is particularly problematic for rotorcraft due to significant cross coupling and divergence issues and the requirement to adopt control strategies that does not result in correlated secondary feedback into the primary axis of concern.