New longitudinal handling qualities criterion for unstable hypersonic vehicles

R. Stich, G. Sachs, Tim Cox

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

This paper presents results of a joint research program of NASA Dryden Flight Research Center and the Institute of Flight Mechanics and Control of Technische Universität München on hypersonic longitudinal long-term dynamics. The peculiarities of hypersonic flight dynamics as well as approximations for eigenvalues and transfer functions are described. The flight simulator which is used for the evaluation and a head up display customized for hypersonic cruise flight will be presented. A special piloting technique to compensate path-attitude lag is described. Pilot ratings for longitudinal long-term dynamic handling qualities of different phugoid and height mode instabilities including combined ones, are presented. Further the strong influence of engine time lag on handling qualities is described. Pilot models for stable closed loop dynamics concerning feedback of vertical speed to elevator and airspeed to throttle are presented. With reference to the maximum stable crossover frequency and the exponent of the most unstable eigenvalue a new handling qualities criterion for unstable longitudinal long-term dynamics is presented

Original languageEnglish
Title of host publicationAIAA Atmospheric Flight Mechanics Conference and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781563479458, 9781624100895
DOIs
StatePublished - 2003
EventAIAA Atmospheric Flight Mechanics Conference and Exhibit 2003 - Austin, TX, United States
Duration: 11 Aug 200314 Aug 2003

Publication series

NameAIAA Atmospheric Flight Mechanics Conference and Exhibit

Conference

ConferenceAIAA Atmospheric Flight Mechanics Conference and Exhibit 2003
Country/TerritoryUnited States
CityAustin, TX
Period11/08/0314/08/03

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