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AFH Chapter 4

CHAPTER TITLE: Energy Management: Mastering Altitude and Airspeed Control


Below is a list of the figures (diagrams, charts, and pictures) from the AFH Chapter 4. They are listed in the order they are found in the Airplane Flying Handbook.


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FIGURE 4-1 A-F

Examples of typical energy transactions.


FIGURE 4-2

The energy balance equation.


FIGURE 4-3

The reservoir analogy illustrating the primary role of the throttle and elevator to manage the airplane’s energy state.


FIGURE 4-4

The front side and backside of the power required curve, the power available curve, and the relative excess power available (power available - power required) at different speeds.


FIGURE 4-5

The effect of increased load factor on total drag and power required at different airspeeds.


FIGURE 4-6

The altitude-speed “map” showing lines of constant energy height.


FIGURE 4-7

Energy map depicting specific excess power (PS) contours (shown in feet per minute) and energy trajectories for a hypothetical airplane.


FIGURE 4-8

The energy-control map helping to visualize the basic energy control rules.


FIGURE 4-9

Descending below the desired glideslope.


FIGURE 4-10

Departing from Runway 33, Aspen/Pitkin County Airport (KASE), elevation 7,820 feet.


FIGURE 4-11

An energy state matrix that translates the main altitude-speed deviations into energy errors relative to the desired energy state (5).


FIGURE 4-12

The control skills needed to correct total energy and energy distribution errors identified in Figure 4-11 with an additional column giving caution to the “very slow” condition where careful AOA management is needed in addition to energy management.


FIGURE 4-13

Energy error management.


FIGURE 4-14

The energy depletion scenario viewed in the power required and available curve. Compared with the power available curve depicted in Figure 4-4, note the lower power available curve at this high elevation (7,820 feet at the departure airport) and higher density altitude than standard during a hot afternoon.


FIGURE 4-15

The energy depletion scenario viewed in the energy map. Specific excess power (PS) contours are labeled in units of feet per minute.


FIGURE 4-16

The energy loss scenario recovery viewed in the energy map. Specific excess power (PS) contours are labeled in units of feet per minute.


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