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Meeting	ACGS Committee Meeting 110 - Auburn, Maine - October 2012
Agenda Location	4 GENERAL COMMITTEE TECHNICAL SESSION 4.1 Research Institutions, Industry, and University Reports 4.1.1 Research Institutions and Companies 4.1.1.1 Systems Technology, Inc.
Title	Systems Technology, Inc.
Presenter	Dave Klyde
Available Downloads*	presentation
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Abstract	Creating Spatial Disorientation in Flight Training A study conducted by The Boeing Company of world-wide commercial jet transport accidents has found the most common events to be loss of control associated with an inability of pilots to recover from upsets and unusual attitudes. A key component in many of these events is pilot spatial disorientation. Improved pilot training in these abnormal flight conditions, including the ability of training simulators to replicate spatial disorientation, is needed to reduce loss of control accidents. Traditional commercial pilot training is conducted with hexapod-based motion systems that are limited in their ability to replicate the motion cues associated with these events. Furthermore, required data are typically not available in these flight regimes to insure that the aircraft models used in the simulators are valid. Given these short comings, how can air carriers and other stakeholders be certain that there is positive transfer of training regarding spatial disorientation from the simulator to flight? To address this question, a team led by Systems Technology, Inc. will create the Spatial Disorientation – Transfer of Training Assessment Library (SD-TOTAL) software application that will provide tools to quantify the ability of flight simulators to replicate spatial disorientation as compared to flight and appropriate spatial disorientation academic information for pilots. A limited flight test and ground simulation program featuring elements of an upset recovery training curriculum will be conducted in Phase 1 using the Calspan Learjet In-Flight Simulator to demonstrate feasibility of the proposed approach. Reduced Order Modeling With Rigid Body Modes Recent modeling and simulation capabilities have made it possible to recreate complex aeroelastic and aeroservoelastic phenomena on complete aircraft configurations. This capability can improve safety by simulating potentially dangerous flight conditions prior to flight tests. There can also a significant cost saving by reducing the number of flight test points needed to validate a design. Computation time remains a limitation even with large clusters of processors, especially for aircraft stability and control analysis and for flight control design, where many iterations and sensitivity studies are a normal part of the development process. The algorithms developed in Phase I speed up the development process by starting with a comprehensive high fidelity model that contains both rigid and flexible degrees of freedom from the start. ROMs created from this are comprehensive, containing all of the dynamics with no requirement to merge separate models. Moreover, a comprehensive ROM process lays the foundation for an accurate database of linear parameter varying (LPV) models that can be used for subsequent LPV control design algorithms. The resulting ROMs were further reduced using traditional approaches such as balanced realization and truncation, retaining state consistency between parameter dependent models. C-2A Ground Handling Systems Technology, Inc. has been contracted by the Navy to review and analyze the ground handling of the C-2A. Fused Reality Flight for Enhanced Flight Test Capabilities This SBIR program successfully demonstrated the feasibility of using Fused Reality-based simulation technology to enhance flight test capabilities. In terms of relevancy to piloted evaluation, there remains no substitute for actual flight tests even when considering the fidelity and effectiveness of modern ground-based simulators. In addition to real world cueing (vestibular, visual, aural, environmental, etc.), flight test provides subtle but key intangibles that cannot be duplicated in a ground-based simulator. There is, however, a cost to be paid for the benefits of flight in terms of budget, mission complexity, and safety including the need for ground and control room personnel, additional aircraft, etc. New technologies and test procedures are therefore needed to maximize the investments and reduce some of the related costs associated with flight test. To address this need, Systems Technology, Inc. developed a Fused Reality (FR) Flight system that allows a virtual environment to be integrated with the test aircraft so that tasks such as aerial refueling, formation flying, or approach and landing can be accomplished without additional aircraft resources or the risk of operating in close proximity to the ground or other aircraft. Furthermore, for the first time, the dynamic motions of the simulated objects (e.g., refueling drogue or tanker) can now be directly correlated with the responses of the test aircraft. The FR Flight system allows real-time observation of and manual interaction with the cockpit environment that serves as a frame for the virtual out-the-window scene.