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Manual Manipulation of Engine Throttles for Emergency Flight Control
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TLDR
In this paper, a history of accidents or incidents in which some or all flight controls were lost, manual TOC results for a wide range of airplanes from simulation and flight, and suggested techniques for flying with throttles only and making a survivable landing.Abstract:
If normal aircraft flight controls are lost, emergency flight control may be attempted using only engines thrust. Collective thrust is used to control flightpath, and differential thrust is used to control bank angle. Flight test and simulation results on many airplanes have shown that pilot manipulation of throttles is usually adequate to maintain up-and-away flight, but is most often not capable of providing safe landings. There are techniques that will improve control and increase the chances of a survivable landing. This paper reviews the principles of throttles-only control (TOC), a history of accidents or incidents in which some or all flight controls were lost, manual TOC results for a wide range of airplanes from simulation and flight, and suggested techniques for flying with throttles only and making a survivable landing.read more
Citations
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Proceedings ArticleDOI
Fast Thrust Response for Improved Flight/Engine Control under Emergency Conditions
Jonathan S. Litt,Ten-Huei Guo +1 more
TL;DR: In this article, the use of a stall margin controller is proposed and discussed to reduce the risk of stall in emergency landing. But, it is not explained why this new control mode will enable significantly faster engine response compared to standard Bill of Material control while still maintaining a safe stall margin.
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The Effect of Faster Engine Response on the Lateral Directional Control of a Damaged Aircraft
TL;DR: In this paper, a nonlinear engine model (the Commercial Modular Aero-Propulsion System Simulation 40k) has been integrated with a non-linear airframe model in order to evaluate the use of enhanced-response engines as alternative yaw rate control effectors.
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H-Infinity-LTR Technique Applied to Robust Control of Propulsion-Controlled Aircraft
Proceedings ArticleDOI
Design and Demonstration of Emergency Control Modes for Enhanced Engine Performance
TL;DR: In this article, a design concept is presented for developing control modes that enhance aircraft engine performance during emergency flight scenarios, where the benefits of increased engine performance to overall vehicle survivability during these situations may outweigh the accompanied elevated risk of engine failure.
Proceedings ArticleDOI
A Risk Management Architecture for Emergency Integrated Aircraft Control
TL;DR: In this paper, an architecture that weighs the risks of the emergency and of possible engine performance enhancements to reduce overall risk to the aircraft is described, and two examples of emergency situations are presented to demonstrate the interaction between the flight and propulsion controllers to facilitate the enhanced operation.
References
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Journal ArticleDOI
Out of Control
TL;DR: In contrast, the authors argue that there are many everyday contexts in which we hold agents responsible for their acts even though considerations unrelated to determinism strongly suggest that they cannot help performing them.
Development and Flight Evaluation of an Emergency Digital Flight Control System Using Only Engine Thrust on an F-15 Airplane
TL;DR: Results from a 36-flight evaluation showed that the PCA system can be used to safety land an airplane that has suffered a major flight control system failure and was used to recover from a severe upset condition, descend, and land.
Proceedings ArticleDOI
A simulation evaluation of a four-engine jet transport using engine thrust modulation for flightpath control
TL;DR: The use of throttle control laws to provide adequate flying qualities for flight path control in the event of a total loss of conventional flight control surface use was evaluated in this paper, where the results were based on a simulation evaluation by transport research pilots of a B-720 transport with visual display.
Development and Flight Test of an Emergency Flight Control System Using Only Engine Thrust on an MD-11 Transport Airplane
TL;DR: An emergency flight control system that uses only engine thrust, called the propulsion-controlled aircraft (PCA) system, was developed and flight tested on an MD-11 airplane as discussed by the authors.