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Showing 1 to 17 of 17 for “"Flying Wing"”.
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Conceptual Design for a Laminar-Flying-Wing Aircraft
The laminar-flying-wing aircraft appears to be an attractive long-term prospect for reducing the environmental impact of commercial aviation. In assessing its potential, a relatively straightforward initial step is the conceptual design of a version with restricted sweep angle. Such a design is the …
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Conceptual Assessment of an Oblique Flying Wing Aircraft Including Control and Trim Characteristics
… of its stability and control attributes. Oblique wing aircraft concepts are a design option that is well understood, but has yet to be used in a production aircraft. Risk involved in choosing such a design can be averted through additional knowledge early in the concept evaluation phase. Analysis …
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Modeling and Control of Dual-Motored Tail-Sitting Flying Wing Using a Fuzzy Logic Pid Controller
… range and endurance limitations versus the fixed wing's required infrastructure. An aircraft known as the Flite Test Spear is used to examine fuzzy logic control and is one such hybrid VTOL that uses large control surfaces and throttle control to maneuver itself for take-offs and landings in a …
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The Death of the Flying Wing : The Real Reasons Behind the 1949 Cancellation of Northrop Aircraft's RB-49
… to the Air Force's 1949 cancellation of his Flying Wing aircraft, Mr. Northrop alleged that the cancellation was not the result of any valid concerns about the aircraft itself, but rather was a retaliation for his refusal to agree to an improper demand by the Air Force . Specifically, Mr. …
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Flight Dynamics and Control of Highly Flexible Flying-Wings
High aspect-ratio flying wing configurations designed for high altitude, long endurance missions are characterized by high flexibility, leading to significant static aeroelastic deformation in flight, and coupling between aeroelasticity and flight dynamics. As a result of this coupling, an …
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Design of a swept-wing High-Altitude Long-Endurance Unmanned Air Vehicle (HALE UAV)
High-altitude aircraft flying in the stratosphere (around 17-30 km altitude) can provide a useful platform for sensors to support a range of military and civilian surveillance tasks. The main topic of the thesis concerns the analysis of solar powered unmanned aerial vehicles designed for extended …
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Utility of Quasi-Static Gust Loads Certification Methods for Novel Configurations
… in the context of a SensorCraft inspired joined-wing HALE model, and a Helios inspired flying wing HALE model. Recommendations are made on the usability of Pratt's Method for aircraft similar to the two HALE models. It is concluded that Pratt's Method is useful for preliminary design of the …
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Stereovision Correction Using Modal Analysis
… By mounting a stereo vision system on the wings of an unmanned aircraft it becomes very useful tool. This technique however, becomes less accurate as stereo vision baselines become longer, aircraft wing spans are increased, and aircraft wings become increasingly flexible. Typically, ideal …
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A novel optimised design using slots for flow control and high-lift performance of UCAVs
… the maximum-lift characteristics of two flying wing planforms; second to control the flow by inserting leading-edge and chordwise slots and analysing the viscous flow development over the outboard sections of a flying-wing configuration to maximise the performance of control surfaces. The …
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Design and Development of Low-cost Multi-function UAV Suitable for Production and Operation in Low Resource Environments
A new flying wing design has been developed at the Unmanned Systems Lab (USL) at Virginia Tech to serve delivery and remote sensing applications in the developing world. The fully autonomous unmanned aerial vehicle (UAV), named EcoSoar, was designed with the goal of creating a business opportunity …
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Propulsion considerations for supersonic oblique flying wings
… considerations unique to the supersonic oblique flying wing, including cycle selection, sizing, and integration were investigated via the development and interrogation of aerodynamic and propulsive synthesis models. These models were an amalgamation of computational tools (MSES), linearized …
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Hydrodynamic Impact Analysis and Testing of an Unmanned Aerial Vehicle
… the surface of the water. The tested UAV is a flying wing design constructed of expanded polypropylene foam wings with a hollowed out center-section for the avionics. Acceleration data was collected by means of LIS331 3-axis accelerometers positioned at five locations, including the wingtips. …
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Algorithms for Generation and Tracking of Fast and Agile Flight Trajectories
… for a quadcopter aircraft and for a fixed-wing transitioning aircraft that combines vertical take-off and landing (VTOL) with efficient forward flight. This thesis contains several contributions. First, we show that robust control based on incremental nonlinear dynamic inversion (INDI) …
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Nonlinear UAV Flight Control Using Command Filtered Backstepping
… for use in AME UAS's Fury® 1500 unmanned flying wing aircraft. Backstepping is a recursive, control-effort minimizing, constructive design procedure that interlaces the choice of a Lyapunov function with the design of feedback control. It allows the use of certain plant states to act as …
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The Multidisciplinary Design Optimization of a Distributed Propulsion Blended-Wing-Body Aircraft
… (MDO) of a distributed propulsion blended-wing-body (BWB) aircraft. The BWB is a hybrid shape resembling a flying wing, placing the payload in the inboard sections of the wing. The distributed propulsion concept involves replacing a small number of large engines with many smaller engines. …
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Multidisciplinary Design Optimization of an Extreme Aspect Ratio HALE UAV
… from a unique WWII-era project, a “pinned wing” HALE aircraft would employ self-supporting wing segments assembled into one overall flying wing. The research effort began with the creation of a multidisciplinary analysis environment comprised of analysis modules, each providing information …
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Design Of An Autopilot For Small Unmanned Aerial Vehicles
… presents the design of an autopilot capable of flying small unmanned aerial vehicles with wingspans less then 21 inches. The autopilot is extremely small and lightweight allowing it to fit in aircraft of this size. The autopilot features an advanced, highly autonomous flight control system with …