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orion capsule handling qualities for atmospheric entryTwo piloted simulations were conducted at NASA's Johnson Space Center using the Cooper-Harper scale to study the handling qualities of the Orion Command Module capsule during atmospheric entry flight. The simulations were conducted using high fidelity 6-DOF simulators for Lunar Return Skip Entry and International Space Station Return Direct Entry flight using bank angle steering commands generated by either the Primary (PredGuid) or Backup (PLM) guidance algorithms. For both evaluations, manual control of bank angle began after descending through Entry Interface into the atmosphere until drogue chutes deployment. Pilots were able to use defined bank management and reversal criteria to accurately track the bank angle commands, and stay within flight performance metrics of landing accuracy, g-loads, and propellant consumption, suggesting that the pilotability of Orion under manual control is both achievable and provides adequate trajectory performance with acceptable levels of pilot effort. Another significant result of these analyses is the applicability of flying a complex entry task under high speed entry flight conditions relevant to the next generation Multi Purpose Crew Vehicle return from Mars and Near Earth Objects.
Document ID
20110013203
Document Type
Conference Paper
Authors
Tigges, Michael A.
(NASA Johnson Space Center Houston, TX, United States)
Bihari, Brian D.
(Hamilton Sundstrand Corp. Houston, TX, United States)
Stephens, John-Paul
(Lockheed Martin Engineering and Science Services Houston, TX, United States)
Vos, Gordon A.
(Wyle Integrated Science and Engineering Group Houston, TX, United States)
Bilimoria, Karl D.
(NASA Ames Research Center Moffett Field, CA, United States)
Mueller, Eric R.
(NASA Ames Research Center Moffett Field, CA, United States)
Law, Howard G.
(NASA Johnson Space Center Houston, TX, United States)
Johnson, Wyatt
(NASA Johnson Space Center Houston, TX, United States)
Bailey, Randall E.
(NASA Langley Research Center Hampton, VA, United States)
Jackson, Bruce
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 25, 2013
Publication Date
January 1, 2011
Subject Category
Spacecraft Design, Testing and Performance
Report/Patent Number
JSC-CN-24034
Meeting Information
AIAA GNC/AFM/MST 2011 Joint Conference - (AFM) - AIAA 2nd Atmospheric Flight Mechanics(Portland, OR)
Distribution Limits
Public
Copyright
Public Use Permitted.

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