Tutor Platform
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.

Sign in to generate a study note

From the FAA library

  • Chapter 11: Aircraft Performance › Takeoff and Landing Performance › Runway Surface and Gradient

    such as mud, snow, or standing water reduce the airplane’s acceleration down the runway. Although muddy and wet surface conditions can reduce friction between the runway and the tires, they can also act as obstructions and reduce the landing ... braking effectiveness. Ensure that runways are adequate in length for takeoff acceleration and landing deceleration when less than ideal surface conditions are being reported…

  • Glossary › Pilot’s Operating Handbook/Airplane Flight Manual

    strategic weather information presented in an integrated manner in the National Airspace System (NAS). Weather depiction chart. Details surface conditions as derived from METAR and other surface observations. Weight. The force exerted by an aircraft from the pull of gravity…

  • Chapter 13: Aviation Weather Services › Weather Charts › Weather Depiction Chart

    Weather Depiction Chart A weather depiction chart details surface conditions as derived from METAR and other surface observations. The weather depiction chart is prepared and transmitted by computer every 3 hours beginning at 0100Z time and is valid data ... Also plotted are fronts, troughs, and squall lines from the previous hours surface analysis chart. Weather depiction charts show a modified station model that provides sky conditions in the form of total sky cover, ceiling height, weather, and obstructions…

  • Chapter 2: Aeronautical Decision-Making › RISK › Hazard and Risk

    flown into these conditions repeatedly although the icing conditions were previously forecast 2,000 feet above the surface. This time, the conditions were forecast from the surface. Since the pilot was in a hurry and failed to factor…

  • 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 ... drag, either induced (from lifting surfaces) or parasite drag. While parasite drag predominates at high speed, induced drag predominates at low speed. [Figure 11-5] For example, if an aircraft in a steady flight condition at 100 knots is then…

  • Chapter 4: Engine Ignition & Electrical Systems › Spark Plug Inspection & Maintenance › Breaker Point Inspection

    breaker contact surfaces, it is necessary to know what a normal operating set of contacts looks like, what surface condition is considered as permissible wear, and what surface condition is cause for dressing or replacement. The probable cause ... abnormal surface condition can be determined from the contact appearance. The normal contact surface has a dull gray, sandblasted, almost rough appearance over the area where electrical contact is made. [Figure 4-66] This gray, sandblasted appearance indicates that…