Cause of air carrier accidents in the united states

Assignment Help Basic Statistics

Reference no: EM131127945

Low-altitude wind shear is a major cause of air carrier accidents in the United States. Most of these accidents have been caused by either microbursts (small-scale, low-altitude, intense thunderstorm downdrafts that impact the surface and cause strong divergent outflows of wind) or by the gust front at the leading edge of expanding thunderstorm outflows. A microburst encounter is a serious problem for either landing or departing aircraft, because the aircraft is at low altitudes and is traveling at just over 25% above its stall speed [12].

The design of the control of an aircraft encountering wind shear after takeoff may be treated as a problem of stabilizing the climb rate about a desired value of the climb rate. The resulting controller uses only climb rate information.

The standard negative unity feedback system of Figure 8.24 has a loop transfer function

Note the negative gain in G_c(s)G(s). This system represents the control system for the climb rate. Sketch the Bode diagram and determine gain (in dB) when the phase is -180°.

Reference no: EM131127945

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