Pilot's Handbook of Aeronautical Knowledge
Preface
Acknowledgements
Table of Contents
Chapter 1, Introduction To Flying
Chapter 2, Aircraft Structure
Chapter 3, Principles of Flight
Chapter 4, Aerodynamics of Flight
Chapter 5,
Flight Controls
Chapter 6,
Aircraft Systems
Chapter 7,
Flight Instruments
Chapter 8, Flight Manuals and Other Documents
Chapter 9,
Weight and Balance
Chapter 10, Aircraft Performance
Chapter 11, Weather Theory
Chapter 12,
Aviation Weather Services
Chapter 13,
Airport Operation
Chapter 14,
Airspace
Chapter 15, Navigation
Chapter 16, Aeromedical Factors
Chapter 17, Aeronautical Decision Making
Appendix
Glossary
Index |
Figure 11-8. Station pressure is converted to and reported in sea level pressure. |
Altitude and Flight
Altitude affects every aspect of flight from aircraft
performance to human performance. At higher altitudes,
with a decreased atmospheric pressure, takeoff and landing
distances are increased, as are climb rates. |
When an aircraft takes off, lift must be developed by the
flow of air around the wings. If the air is thin, more speed
is required to obtain enough lift for takeoff; therefore, the
ground run is longer. An aircraft that requires 745 feet of
ground run at sea level requires more than double that at a
pressure altitude of 8,000 feet. [Figure 11-9]. It is also true
that at higher altitudes, due to the decreased density of the
air, aircraft engines and propellers are less efficient. This
leads to reduced rates of climb and a greater ground run for
obstacle clearance. |
Figure 11-9. Takeoff distances increase with increased altitude. |
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