Project 1: Advanced Aircraft Simulator Flight Fidelity Evaluation Measures
Summary of Services Performed:
Develop new methodology to evaluate the fidelity of flight simulators that relies completely on quantitative measures.
While new technology is making flight simulators more affordable, validating the simulators for training applications remains costly. This is mostly due to the inefficiency and inconsistency of the subjective validation approach currently used. Performing trial and error iterations based on the subjective opinion of multiple pilots is costly and inefficient. A major deficiency in the current validation approach is the inability to separately determine the validity of the simulator cueing systems. The subjective validation is end-to-end and the flight dynamics model, after initially being validated in isolation, is ultimately modified to compensate for cueing deficiencies in the total system. Advanced Rotorcraft Technology, Inc. (ART) has proposed a new validation criteria and methodology that provides a quantitative metric for the fidelity of the simulator cueing systems for each training task. The methodology also allows determination of the most cost effective configuration of simulator cueing systems that will satisfy the training requirement. If the cueing systems are inadequate for the training task, this methodology also provides quantitative guidelines for modifying the flight dynamics model to compensate for cueing deficiencies. In Phase I, the proposed methodology will be developed and tested on an in-house OH-58D simulator that ART has tested to FAA Level D standards.
Project 2: Handling Qualities Specification Requirements for Maritime Rotorcraft, VTOL UAV, and Heavy Lift Helicopters
Summary of Services Performed: Developing an aeronautical design standard and simulation toolbox to address the urgent needs of rotorcraft, heavy lift helicopter, and VTOL UAV handling qualities requirements for shipboard operations.
To provide rotorcraft design guidance for military rotorcraft flying qualities evaluation, a modern Aeronautical Design Standard 33, ADS-33E-PRF, was developed under the direction of the U.S. Army as a replacement for the obsolete handling qualities military specification MIL-H-8501A. ADS-33E-PRF addresses rotorcraft flying qualities specification requirements in a novel and comprehensive way so that many of the complicated rotorcraft flying maneuvers can be quantitatively assessed. Compared to MIL-H-8501A, Thus far, ADS-33E-PRF provides design and testing engineers with a comprehensive set of rotorcraft handling qualities requirements for modern rotorcraft design, manufacturing, and testing and evaluation. However, ADS-33E-PRF was developed primarily for land-based rotorcraft operations. The Naval rotorcraft flying qualities requirements were not adequately addressed in ADS-33E-PRF. There is an urgent need to expand ADS-33E-PRF in order to fully address unique Naval rotorcraft technology areas including shipboard rotorcraft handling qualities, VTOL UAVs, and heavy lift rotorcraft design criteria and mission task elements (MTEs).
This SBIR is to develop a technical basis for augmenting the current ADS-33E-PRF to accommodate the needs of improving its applicability to shipboard rotorcraft and heavy lift helicopter flying qualities specifications. The research effort will emphasize the new criteria development, the evaluation methodology formulation, and the analytical simulation toolkit integration. The detailed technical objectives provide the following:
Advanced Rotorcraft Technology, Inc.