Flight Instructor for Airplane Category › X. Slow flight, Stalls, and Spins › Task B. Demonstration of Flight Characteristics at Various Configurations and Airspeeds (ASEL and ASES)

AI.X.B.K3

Knowledge

The minimum power required speed and its role in differentiating the region of normal command and the region of reversed command on the power-required curve.

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Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Pilot's Handbook of Aeronautical Knowledge p. 11-11
Chapter 11: Aircraft Performance › Climb Performance Factors › Region of Reversed Command
majority of aircraft flying (climb, cruise, and maneuvers) is conducted in the region of normal command. Flight in the region of reversed command means flight in which a higher airspeed requires a lower power setting and a lower airspeed requires ... higher power setting to hold altitude. It does not imply that a decrease in power produces lower airspeed. The region of reversed command is encountered in the low speed phases of flight. Flight speeds below the speed for maximum endurance…
Airplane Flying Handbook p. 4-5
Chapter 4: Energy Management: Mastering Altitude and Airspeed Control › Role of the Controls to Manage Energy State › Additional Role for the Elevator
With this excess power (B in Figure 4-4) the airplane can now climb at a constant airspeed or turn in level flight while maintaining a constant airspeed at an increased load factor. On the backside of the power required ... curve, where the airplane flies at low speed (3 in Figure 4-4) and high AOA with little or no excess power or excess thrust (C in Figure 4-4), pushing forward on the yoke or stick (elevator down) will…
Airplane Flying Handbook p. G-17
Glossary › Numbers and Symbols
Code of Federal Regulations that govern the procedures for conducting flight under visual conditions. VLE. Landing gear extended speed. The maximum speed at which an airplane can be safely flown with the landing gear extended. VLO. Landing gear operating speed ... maximum speed for extending or retracting the landing gear if using an airplane equipped with retractable landing gear. VLOF. Lift-off speed. The speed at which the aircraft departs the runway during takeoff. VMC. Minimum control airspeed. This…
Pilot's Handbook of Aeronautical Knowledge p. 8-9
Chapter 8: Flight Instruments › Airspeed Indicator Markings
Airspeed Indicator Markings Aircraft weighing 12,500 pounds or less, manufactured after 1945, and certificated by the FAA are required to have ASIs marked in accordance with a standard color-coded marking system. This system of color-coded markings enables ... White arc—commonly referred to as the flap operating range since its lower limit represents the full flap stall speed and its upper limit provides the maximum flap speed. Approaches and landings are usually flown at speeds within the white…
14 CFR Part 61 — Certification: Pilots, Flight Instructors, and Ground Instructors Open
14 CFR § 61.411 What aeronautical experience must I have to apply for a flight instructor certificate with a sport pilot rating?
hours of cross-country time in an airship, and (v) 15 hours of flight time as pilot in command in an airship that is an aircraft meeting the performance limits and design requirements of § 61.316. (e) Lighter-than-air category ... balloon class privileges, | (1) 35 hours of flight time as pilot-in-command, | (i) 20 hours of flight time in a balloon, (ii) 10 flights in a balloon, and (iii) 5 flights as pilot in command in a balloon that…