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  • Chapter 9: Techniques of Flight Instruction › Positive Exchange of Flight Controls › Procedure

    controls.” If an instructor allows a learner to remain on the controls, the instructor may not have full and effective control of the aircraft. Anxious learners can be incredibly strong and usually exhibit reactions inappropriate to the situation ... controls and having to fight for control of the aircraft. Learners should never be allowed to exceed the flight instructor’s limits. Flight instructors should not exceed their own ability to perceive a problem, decide upon a course of action…

  • Chapter 10: Teaching Practical Risk Management during Flight Instruction › Poor Risk Management and Accident Causality › Mitigating Risk

    Mitigating Risk As explained in Chapter 1, risk mitigation is the “payoff” for the risk management process. Effective risk mitigation may allow for a proposed flight to begin or an ongoing flight to continue. However, this is not always ... eliminate the risk by cancelling the flight. Other examples of risk elimination include not flying if the crosswind exceeds a limit or not practicing stalls if the ceiling is below a set value. Whenever a flight is contemplated, the process…

  • Chapter 15: Transition to Turbopropeller-Powered Airplanes › Operational Considerations

    engine rpm represents the majority of the engine thrust. Below that setting, the application of power has very little effect. A second consideration for transitioning pilots concerns turbine engine heat sensitivity. A turbine engine cannot tolerate an over temperature condition ... into the normal operating range. During this time, the pilot should watch for any tendency of the temperatures to exceed limitations and be prepared to cut off fuel to the engine. An engine tendency to exceed maximum starting temperature limits…

  • Glossary › Numbers and Symbols

    turbine engines, a start which occurs with normal engine rotation, but exhaust temperature exceeds prescribed limits. This is usually caused by an excessively rich mixture in the combustor. The fuel to the engine must be terminated immediately to prevent engine ... much like a water ski. When the tires are hydroplaning, directional control and braking action are virtually impossible. An effective anti-skid system can minimize the effects of hydroplaning. Hypoxia. A lack of sufficient oxygen reaching the body tissues…

  • Glossary › Domestic Reduced Vertical Separation Minimum

    performance aircraft. An aircraft with an engine of more than 200 horsepower. Histotoxic hypoxia. The inability of cells to effectively use oxygen. Plenty of oxygen is being transported to the cells that need it, but they are unable ... minute. Hot start. In gas turbine engines, a start which occurs with normal engine rotation, but exhaust temperature exceeds prescribed limits. This is usually caused by an excessively rich mixture in the combustor. The fuel to the engine must…

  • Chapter 5: Aerodynamics of Flight › High Speed Flight › Speed Ranges

    aircraft in which airflow over any part of the aircraft or structure under consideration first reaches (but does not exceed) Mach 1.0 is termed “critical Mach number” or “Mach Crit.” Thus, critical Mach number is the boundary between subsonic ... percent above the critical Mach number, compressibility effects begin. Drag begins to rise sharply. Associated with the “drag rise” are buffet, trim, and stability changes and a decrease in control surface effectiveness. This is the point of “drag divergence.” [Figure…