IL.XIV.F.S5

From the FAA library

• Pilot's Handbook of Aeronautical Knowledgep. 5-3
  Chapter 5: Aerodynamics of Flight › Thrust

  vectors during a stabilized climb. Likewise, if the engine power is increased, thrust becomes greater than drag and the airspeed increases. As long as the thrust continues to be greater than the drag, the aircraft continues to accelerate. When drag ... equals thrust, the aircraft flies at a constant airspeed. Straight-and-level flight may be sustained at a wide range of speeds. The pilot coordinates AOA and thrust in all speed regimes if the aircraft is to be held…

• Pilot's Handbook of Aeronautical Knowledgep. 11-5
  Chapter 11: Aircraft Performance › Performance › Straight-and-Level Flight

  Straight-and-Level Flight All of the principal components of flight performance involve steady-state flight conditions and equilibrium of the aircraft. For the aircraft to remain in steady, level flight, equilibrium must be obtained by a lift equal ... weight and a powerplant thrust equal to the aircraft drag. Thus, the aircraft drag defines the thrust required to maintain steady, level flight. As presented in Chapter 4, Aerodynamics of Flight, all parts of an aircraft contribute to the drag…

• Pilot's Handbook of Aeronautical Knowledgep. 5-24
  Chapter 5: Aerodynamics of Flight › Aerodynamic Forces in Flight Maneuvers › Forces in Climbs

  Figure 5-35. Normal, slipping, and skidding turns at a constant altitude. If the climb is entered with no change in power setting, the airspeed gradually diminishes because the thrust required to maintain a given airspeed in level flight ... insufficient to maintain the same airspeed in a climb. When the flight path is inclined upward, a component of the aircraft’s weight acts in the same direction as, and parallel to, the total drag of the aircraft, thereby increasing…

• Pilot's Handbook of Aeronautical Knowledgep. 8-9
  Chapter 8: Flight Instruments › Instrument Check › Airspeed Indicator (ASI)

  This error is generally greatest at low airspeeds. In the cruising and higher airspeed ranges, IAS and CAS are approximately the same. Refer to the airspeed calibration chart to correct for possible airspeed errors. • True airspeed (TAS)—CAS corrected ... altitude and nonstandard temperature. Because air density decreases with an increase in altitude, an aircraft has to be flown faster at higher altitudes to cause the same pressure difference between pitot impact pressure and static pressure. Therefore, for a given…

• Pilot's Handbook of Aeronautical Knowledgep. 5-4
  Chapter 5: Aerodynamics of Flight › Lift

  Conversely, as the aircraft is slowed, the decreasing velocity requires increasing the AOA to maintain lift sufficient to maintain flight. There is, of course, a limit to how far the AOA can be increased, if a stall ... avoided. All other factors being constant, for every AOA there is a corresponding airspeed required to maintain altitude in steady, unaccelerated flight (true only if maintaining level flight). Since an airfoil always stalls at the same AOA, if increasing weight…

• 14 CFR Part 91 — General Operating and Flight RulesOpen
  14 CFR § 91.179 IFR cruising altitude or flight level.

  cruising altitude or flight level. Unless otherwise authorized by ATC, the following rules apply— (a) In controlled airspace. Each person operating an aircraft under IFR in level cruising flight in controlled airspace shall maintain the altitude or flight level assigned ... that aircraft by ATC. However, if the ATC clearance assigns “VFR conditions on-top,” that person shall maintain an altitude or flight level as prescribed by § 91.159. (b) In uncontrolled airspace. Except while in a holding pattern of 2 minutes…