Supersonic flying qualities experience using the SR-71

Cox, Timothy H.; Jackson, Dante

doi:10.2514/6.1997-3654

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…Group III of large, heavy, low-to-medium manoeuvrability aircraft presents characteristics similar to those of hypersonic vehicles. 3 In that way, the flying qualities of hypersonic spaceplanes can be identified and compared with the military requirements. In case the specifications are not met, an advanced control system needs to be integrated into the system to stabilise and control it.…”

Section: Introductionmentioning

confidence: 99%

Flying Qualities and Controllability of Hypersonic Spaceplanes

Mooij¹,

Viavattene

2019

AIAA Scitech 2019 Forum

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The growing interest in hypersonic spaceplanes, as a new promising concept for space flight, requires that their flying qualities and controllability characteristics are well understood. These properties are investigated along a typical spaceplane's ascent and re-entry trajectory. The analyses of the stability, trim capabilities and flying qualities of the openloop system should prove whether the spaceplane is dynamically stable. If not, a control system is required. A simple adaptive controller can be designed, focusing on the compromise between optimality and robustness. The current paper addresses the flying-quality and controllability analyses, together with the design of such a control system. The responses for both longitudinal and lateral control in nominal and off-nominal conditions are simulated and evaluated. This robust and advanced control system cannot only stabilise the vehicle with relatively low control effort, but also minimise the effect of disturbances on the overall performance, guaranteeing safety of flight and mission success.

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Section: Introductionmentioning

confidence: 99%

Flying Qualities and Controllability of Hypersonic Spaceplanes

Mooij¹,

Viavattene

2019

AIAA Scitech 2019 Forum

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“…Such a characteristic which causes significant problems in trajectory control is qualified as path-attitude decoupling. The addressed control problem is an issue of continuous interest and subject of recent research (Cox and Jackson, 1997;Meyers et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Tunnel/Predictor Display for Trajectory Control in Hypersonic Flight

Moravszki

Rohács

Sachs

2018

Period. Polytech. Transp. Eng.

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A tunnel/predictor display which presents guidance information in a 3-dimensional format is considered for improving trajectory control in hypersonic flight. The displayed 3-dimensional information comprises a tunnel image and a predictor for indicating the aircraft position at a specified time ahead. The 3-dimensional guidance information is introduced to support the pilot in controlling the flight path. It is considered that piloting problems can be avoided which exist with conventional trajectory control techniques due to path-attitude decoupling. A predictor control law is constructed which yields controlled element properties (predictor-aircraft system) requiring minimum pilot compensation. This predictor control law forms the basis of the trajectory control improvement goal. Results from hypersonic flight simulation tests at the NASA Dryden Flight Research Center are presented for experimental verification. This paper is an outcome of a joint research effort of the NASA Dryden Flight Research Center, and the Institute of Flight Mechanics and Flight Control of the Technische Universität München and the Department of Aeronautics, Naval Architecture and Railway Vehicles (former Department of Aircraft and Ships at the Budapest University of Technology and Economics.

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Parameter estimation of the SR-71 fuselage dynamics using an additive beam model

Iorio

Lind

1998

39th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference and Exhibit

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Supersonic flying qualities experience using the SR-71

Cited by 4 publications

References 2 publications

Flying Qualities and Controllability of Hypersonic Spaceplanes

Flying Qualities and Controllability of Hypersonic Spaceplanes

Tunnel/Predictor Display for Trajectory Control in Hypersonic Flight

Parameter estimation of the SR-71 fuselage dynamics using an additive beam model

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