Instrumentation Overview

• PFD (Primary Flight Display)

  • Instrument not labeled, but commonly used in flight operations.

• Instruments Explained:

  • Attitude Indicator:
  • Indicates the aircraft's orientation relative to the horizon.
  • Altimeter and Vertical Speed Indicator (VSI):
  • Measures altitude and rate of ascent/descent.
  • Heading Indicator:
  • Displays the aircraft's heading.
  • HSI (Horizontal Situation Indicator):
  • Provides heading and navigation information.
  • Speed Indicator:
  • Indicates the aircraft's current speed.
  • Turn Coordinator:
  • Helps in monitoring the rate of turn.

Basic Attitude Instrument Flying (BAI)

• Definition of BAI:

  • Refers to flying by reference to instruments, especially under low visibility conditions (e.g., clouds).

• Importance:

  • Critical for safely navigating when external references are unavailable.

• Three Fundamental Skills of BAI Instrument Flying:

  1. Scan:
  • Systematically checking instruments for information.
  1. Interpret:
  • Understanding what the instruments indicate.
  1. Control:
  • Adjusting aircraft controls based on instrument readings.
    • Mnemonic: SICM (Scan, Interpret, Control).

Inadvertent Flight into IMC (Instrument Meteorological Conditions)

• Response Steps if Entering Clouds:

  1. Aviate:
  • Maintain control of the aircraft.
  1. Navigate:
  • Determine direction of flight if possible.
  1. Communicate:
  • Contact Air Traffic Control (ATC) for assistance if needed.

• Key Points:

  • Trust your instruments for flight control.
  • Attempt to turn around (180-degree turn) when safe.
  • Use available resources to navigate safely during inadvertent IMC.

Control and Performance Method

• Concept:

  • Involves distinguishing between control instruments and performance instruments to achieve desired flight performance.

• Control Instruments:

  • Manifold Pressure:
  • Controls engine power output.
  • Attitude Indicator:
  • Monitors the aircraft's orientation.

• Performance Instruments:

  • Includes airspeed indicator, altimeter, HSI, etc.

• Technique:

  • Pilots make inputs using control instruments to affect performance instruments.
  • Example: To climb at 82 knots, increase power and pull up the yoke to change attitude and climb.

Instrument Scanning Techniques

• Selective Radial Scan (Hub and Spoke):

  • Method of checking instruments by centering attention on the attitude indicator while referencing other instruments.
  • Scan circularly around the hub (attitude indicator) to instruments (altimeter, airspeed, HSI, etc.).

• Racetrack Scan:

  • Moves sequentially through instruments in a circuit rather than a circular pattern.

• Inverted V Scan:

  • Focuses on reading instruments from different systems (e.g., separate pitot and gyro instruments).

• T Scan:

  • Engages horizontally and vertically across the instruments.

Instrument Failure Responses

• Understanding Basic Errors:

  • Essential to recognize how instruments behave under different failures (e.g., pitot/static blockage).

• Pitot Static System Failures:

  • Blocked Pitot Tube, Open Drain Hole:
    • Airspeed indicator will read zero due to lack of pressure change.
  • Both Blocked:
    • Airspeed may not change accurately; behaves like an altimeter.
  • Blocked Static Port:
    • Instrument readings may freeze or behave inaccurately.

• Alternate Static Source:

  • Uses cabin air for static reference.

Advanced Systems Understanding

• ARHS (Attitude Reference Heading System):

  • Comprised of:
  • Magnetometer: Measures magnetic flux; useful for heading.
  • Accelerometer: Determines pitch/roll based on changes in orientation.

• ADC (Air Data Computer):

  • Connects to pitot & static systems to calculate airspeed, altitude, and other performance parameters.

• Engine and Other Instruments:

  • Engine parameters obtained from EIA (Engine/Airframe Interface).
  • Alerts pilots to changes in performance indicators like EGT (Exhaust Gas Temperature) and CHT (Cylinder Head Temperature).

Weather and Navigation

• Key Concepts Covered:

  • Weather theory, including wind, fog, icing, and how to assess weather reports.
  • Preparation for navigation log and cross-country maneuvers.
  • Importance of current sectional charts and understanding their symbols.

• Standard Briefing Preparation:

  • Involves weather briefing, navigation, emergency procedures, and performance planning.

Conclusion

• Further learning and preparation necessary for Stage 2 and Stage 3, including the EOC (End of Course) checkride.
  • Study materials and practical lessons to bolster understanding and readiness for upcoming assessments.