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PI.VI.F.K1

Knowledge

Elements related to attitude instrument flying during timed turns to magnetic compass headings, including operating characteristics and errors of the magnetic compass.

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From the FAA library

  • Chapter 5: Flight Instruments › Dynamic Pressure Type Instruments › Magnetic Compass Errors

    fly a true course of 180° there, the pilot would have to subtract the variation and fly a magnetic course of 166°. The variation error does not change with the heading of the aircraft; it is the same anywhere along ... isogonic line. Deviation The magnets in a compass align with any magnetic field. Local magnetic fields in an aircraft caused by electrical current flowing in the structure, in nearby wiring or any magnetized part of the structure, conflict with…

  • Chapter 7, Section I: Airplane Basic Flight Maneuvers › Turns › Compass Turns

    Compass Turns In most small airplanes, the magnetic compass is the only direction-indicating instrument independent of other airplane instruments and power sources. Because of its operating characteristics, called compass errors, pilots are prone to use it only ... reference for setting the heading indicator, but knowledge of magnetic compass characteristics permits full use of the instrument to turn the airplane to correct and maintain headings. Remember the following points when making turns to magnetic compass headings or when…

  • Chapter 8: Helicopter Attitude Instrument Flying › Turns › Timed Turns

    Timed Turns A timed turn is a turn in which the clock and turn-and-slip indicator are used to change heading a definite number of degrees in a given time. For example, using a standard rate turn, a helicopter ... turns 45° in 15 seconds. Using a half-standard rate turn, the helicopter turns 45° in 30 seconds. Timed turns can be used if the heading indicator becomes inoperative. Figure 8-14. Flight instrument indications in a standard-rate turn…

  • Chapter 8: Flight Instruments › Compass Systems › Magnetic Compass Induced Errors

    There is minimal magnetic interference at the compass rose. The pilot or the AMT, if authorized, can taxi the aircraft to the compass rose and maneuver the aircraft to the headings prescribed by the AMT. As the aircraft is “swung ... aligned to each compass rose heading, the AMT adjusts the compensator assembly located on the top or bottom of the compass. The compensator assembly has two shafts whose ends have screwdriver slots accessible from the front of the compass. Each…

  • Chapter 6, Section I: Airplane Attitude Instrument Flying › Learning Methods › Attitude Indicator

    Overcontrolling; • Improperly using power; and • Failing to adequately cross-check the pitch attitude instruments and take corrective action when pitch attitude change is needed. Bank Control Bank control is controlling the angle made by the wing and the horizon. After ... interpreting the bank attitude from the appropriate instruments, exert the necessary pressures to move the ailerons and roll the aircraft about the longitudinal axis. As illustrated in Figure 6-11, these instruments include: Figure 6-11. Bank instruments. • Attitude indicator…