![]() ![]() The results presented show high quality aircraft state data that in the future will be used for validation of flight simulation aerodynamic models. ![]() These maneuvers included idle decent (gliding), elevator-induced phugoid dynamics, roll rate response, rudder response, stall (clean) with low rate elevator deflections, stall (clean) with high rate elevator deflections, and finally stall (half flaps) with high rate elevator deflections. A sampling of these maneuvers together with all aircraft state details is presented. FLITE TEST ALPHA PDF SIMULATORExtensive flight testing was carried out with flight maneuvers performed according flight simulator qualification standards. The aircraft was instrumented with a high-fidelity data acquisition system, which was then used to collect baseline flight characteristics of the aircraft. The aircraft was first built as a radio control model with modifications being made to support future activities. From the possible GA aircraft radio control models available, a 1/5-scale model Cessna 182 was chosen. This paper describes the first of three phases of the GA-USTAR project, where the baseline aircraft was developed such that future modifications could be performed to dynamically-scale and then perform Reynolds number corrections to the aircraft. The General Aviation Upset and Stall Testing Aircraft Research (GA-USTAR) project described in this paper aims to develop a dynamically-scaled, Reynolds number corrected, GA aircraft to provide validation data sets for the stall/upset aerodynamic model development. civil aviation, where loss of control accounted for approximately 48% of these fatal accidents. This is a critical issue that needs to be addressed as according to the National Transportation and Safety Board (NTSB) Review of Civil Aviation Accidents from 2010 4 and the NTSB 2015/2016/2017 Most Wanted Transportation Safety Improvements factsheets, fixed-wing general aviation (GA) accidents accounted for 89% of all accidents and 86% of total fatalities of U.S. 1 Although dynamically-scaled models have been widely used in GA research (NASA Stall/Spin Research Program 2, 3 ), there has not been recent substantial work in stall/upset modeling and research for GA aircraft and therefore the GA-USTAR project intends to fill that void. The General Aviation Upset and Stall Testing Aircraft Research (GA-USTAR) project aims to develop a dynamicallyscaled, Reynolds number corrected, General Aviation (GA) aircraft to provide validation data sets for the stall/upset aerodynamic model development. Details regarding flight data instrumentation and flight test planning are also described in this paper. ![]() Flight testing and data acquisition will be performed for all three phases of the GA-USTAR project. New airfoils are required to correct for the Reynolds number effects inherent in scaled models. Finally, to ensure that stall is closely matched, new airfoils will be designed and tested in the UIUC subsonic wind tunnel and then used on the GA-USTAR Phase 3 flight platform. The desired geometric, kinematic, and mass parameters fora dynamically-scaled Cessna 182 is discussed. InPhase 2, the approach taken to appropriately dynamically scale the Phase 1 Cessna182 model is discussed. The method of accurately determining the mass distribution and inertias is described in detail. The methodology behind the choice of the Cessna182 as the GA-USTAR Phase 1 (baseline) model is detailed. From a list of available GA aircraft R/C models, a 1/5-scale Cessna 182 was selected. In Phase 1, to simplify the construction, a scaled commercial-of-the-shelf radio control (R/C) model of a GA aircraft is used as a starting point. The project is separated into three phases. The goal of the GA-USTAR project is to build and flight test a dynamically-scaled, Reynold number corrected model of a General Aviation (GA) type aircraft intended for upset and stall flight modeling. This paper discusses the motivation, requirements, and approach of the University of Illinois at Urbana-Champaign (UIUC) General Aviation Upset and Stall Testing Aircraft Research (GA-USTAR) project. ![]()
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