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Pilot's Handbook of Aeronautical Knowledge
Aircraft Performance
Climb Requirements

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Pilot's Handbook of Aeronautical Knowledge



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




Climb Requirements

After the aircraft has reached the 35 foot height with one engine
inoperative, there is a requirement that it be able to climb
at a specified climb gradient. This is known as the takeoff
flightpath requirement. The aircraft's performance must be
considered based upon a one-engine inoperative climb up to
1,500 feet above the ground. The takeoff flightpath profile
with required gradients of climb for the various segments
and configurations is shown in Figure 10-36.

NOTE: Climb gradient can best be described as being a
specific gain of vertical height for a given distance covered
horizontally. For instance, a 2.4 percent gradient means that
24 feet of altitude would be gained for each 1,000 feet of
distance covered horizontally across the ground.
The following brief explanation of the one-engine inoperative
climb profile may be helpful in understanding the chart in
Figure 10-36.

One engine inoperative takeoff.
Figure 10-36. One engine inoperative takeoff.