'Us army air service' diaporamas de présentation

System Safety Management

System Safety Management. The Basic Need For Safety. Originates as a fundamental human need Dr. Abraham Maslow outlined a hierarchy States that humans are motivated to action by unsatisfied needs Physiological needs are first: Air, Water, Food, etc.

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Chapter 4 Early Flight ( 1914-1919)

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World War 1 Plane The DH-4

World War 1 Plane The DH-4. Designed in 1916 by Geoffrey de Havilland, the D.H.4 was the only British design built by the Americans.

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