Design of a flight envelope protection system for NASA's transport class model

Nikolas Tekles, June Chongvisal, Enric Xargay, Ronald Choe, Donald A. Talleur, Naira Hovakimyan, Christine M. Belcastro

Research output: Contribution to journalArticlepeer-review


This paper presents a flight envelope protection system for NASA's Transport Class Model. The developed protection scheme is based on a command-limiting architecture that accounts for aircraft adverse aerodynamics, unusual attitude, and structural integrity and is designed to augment a standard gain-scheduled flight control law. The scheme also includes an energy protection system, which relies on an automatic throttle control loop that implements a total energy control law. In the setup adopted, the limits of the protected envelopes are actively adjusted to ensure, on the one hand, that the aircraft always stays in a safe flight condition and, on the other hand, that the pilot has enough control authority to perform aggressive maneuvers, if needed. Batch simulations demonstrate the efficacy of the protection system in maintaining the aircraft within desired safe conditions.

Original languageEnglish (US)
Pages (from-to)863-877
Number of pages15
JournalJournal of Guidance, Control, and Dynamics
Issue number4
StatePublished - 2017

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Aerospace Engineering
  • Space and Planetary Science
  • Electrical and Electronic Engineering
  • Applied Mathematics


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