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Human Factors and Flight Physiology © 2011 Project Lead The Way, Inc.Aerospace Engineering
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Human Factors Advances in technology have reduced demand for human input Human input and decision making is often crucial at some level
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Flight Physiology Pilots and the supporting flight crew provide the human dynamic for flight The body and mind strengths and limitations impact the design and operation of aircraft
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Incidents and Accidents More than 70% of aviation accidents and incidents are related to human factors Most accidents occur as result of a series of incidents The NTSB contains a wealth of factual information about aviation accidents.
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Interrelationship between human factors and the aviation environment SHEL –S = Software –H = Hardware –E = Environment –L = Liveware SHEL Model
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Liveware Failure: Incapacitation Not able to perform at normal levels –Sudden –Subtle –Total –Partial –Distraction –Recognized –Unrecognized
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Human Body System A human body has multiple systems which impact aircraft and spacecraft design Understanding these systems help Aerospace Engineers design safer vehicles
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Cardiovascular System Maintains an uninterrupted blood movement including oxygen, carbon dioxide, nutrients, and waste The heart pumps blood into arteries, capillaries, and then tissue and cells
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Central Nervous System Collects, transfers and processes information with the brain and spinal cord
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Musculoskeletal System Support bones Allows for movement
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Respiratory System Exchange oxygen and carbon dioxide into and out of the blood stream through lungs
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Metabolic System Allows all body systems to work together Converts resources into substances, chemicals, and energy to support brain and body activity
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Crucial for –Balance –Sense of spatial orientation Impact on aviation –Helps to maintain orientation –Can give confused messages Vestibular System
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References International Civil Aviation Organization (2009). Safety Management Manual (SMM). Retrieved from http://legacy.icao.int/anb/safetymanagement/DOC_9859 _FULL_EN.pdf
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