Interpret Aircraft Attitude - Air Force Officer Qualifying Test AFOQT
- Identify the attitude if the attitude indicator shows a constant bank but the heading indicator shows no heading change.
- Heading indicator failure or incorrect interpretation; a bank should change heading. Sustained bank in coordinated flight induces turning, so unchanged heading signals instrument malfunction or misreading.
- Which compass error causes the compass to lag or lead during acceleration or deceleration on east or west headings?
- Acceleration/deceleration error. Changes in speed on east-west headings cause the compass to deviate due to inertial forces on the magnetic element.
- What does the horizon bar (sky/ground background) represent on the attitude indicator?
- The earth's horizon reference (pitch and bank reference). It provides a visual simulation of the actual horizon, adjusting to reflect changes in the aircraft's pitch and roll orientation.
- Identify the attitude when the bank index points to left and the horizon bar is below the miniature airplane.
- Left bank with nose-up pitch. Combining left roll with upward pitch supports climbing left turns, as shown by the bank scale and horizon position.
- What is the most common pilot error when interpreting the attitude indicator during bank changes?
- Fixating on pitch lines instead of using the bank index and horizon tilt. Pilots often misinterpret roll by focusing on pitch markers, overlooking integrated bank and horizon cues.
- Which instrument is most reliable for short-term heading during turns: magnetic compass or heading indicator?
- Heading indicator (directional gyro). The gyro remains stable during maneuvers, unlike the compass which suffers from turning and acceleration errors.
- What is the correct instrument to use to hold a bank angle precisely in a turn?
- Attitude indicator bank scale (with supporting turn coordinator if available). The scale provides precise roll measurement, augmented by turn coordinator for rate confirmation in coordinated flight.
- What does the magnetic compass display in flight?
- Magnetic heading relative to Earth's magnetic field. It senses the planet's magnetic field to indicate direction, though subject to errors like variation and deviation.
- What does a slipping or skidding turn most directly affect on the magnetic compass indication?
- It worsens compass turning errors and causes unreliable heading cues. Uncoordinated flight amplifies magnetic dip effects, leading to greater inaccuracies in heading during turns.
- Which instrument is the primary reference for pitch and bank in instrument flight?
- Attitude indicator (artificial horizon). It offers immediate, reliable visual cues for aircraft orientation, essential for maintaining control in low visibility.
- Which attitude indicator cue shows a left bank versus a right bank?
- Horizon tilts opposite the bank; bank shown on the bank scale. The horizon's tilt opposes the direction of bank, with the scale quantifying the roll angle for precise attitude assessment.
- What is the standard procedure for setting the heading indicator using the magnetic compass?
- Synchronize the heading indicator to the compass in straight-and-level. Alignment during stable flight minimizes errors from compass dip and acceleration, ensuring reliable gyro setting.
- Identify the expected compass behavior when rolling out to a steady heading after a turn.
- Compass may lag/lead briefly; stabilize on new heading after rollout. Post-turn, inertial and dip effects cause temporary deviation before the compass settles on the accurate magnetic heading.
- What attitude is indicated when the miniature airplane is on the horizon line with wings level?
- Straight-and-level flight (zero pitch, zero bank). This alignment indicates the aircraft is neither pitching nor rolling, maintaining equilibrium relative to the horizon.
- What does the miniature airplane represent on the attitude indicator?
- The aircraft symbol fixed to the instrument case. It serves as a stationary reference depicting the aircraft's position relative to the simulated horizon for accurate attitude interpretation.
- What is the primary purpose of the bank index and bank angle scale on an attitude indicator?
- To read bank angle (roll) in degrees. These features allow pilots to quantify the aircraft's roll angle accurately against calibrated degree markings for controlled maneuvers.
- Identify the attitude when the bank index points to right and pitch is level on the horizon line.
- Right bank , level pitch. The bank index at right with level pitch reflects a standard right turn initiation without altitude change.
- Identify the attitude if the attitude indicator shows wings level but the compass is oscillating after turbulence.
- Maintain wings level; trust attitude indicator over compass oscillation. Turbulence can induce temporary compass instability, but the attitude indicator provides trustworthy pitch and roll data.
- Which heading reference should be used to verify the heading indicator has not drifted over time?
- Magnetic compass (in straight-and-level, unaccelerated flight). The compass provides a drift-free magnetic reference during stable conditions to recalibrate the precessing gyro.
- Identify the attitude when the horizon bar is above the miniature airplane and the bank index is centered.
- Nose-down pitch with wings level. The horizon bar above the aircraft symbol denotes a descent attitude, with centered index ensuring level wings.
- Identify the attitude when the horizon bar is below the miniature airplane and the bank index is centered.
- Nose-up pitch with wings level. The horizon bar below the aircraft symbol signifies a climb attitude, with centered index confirming no roll.
- What does the heading indicator (directional gyro) display relative to the aircraft?
- Aircraft heading referenced to a gyro, aligned to the compass. The gyro-stabilized instrument provides stable directional reference, periodically calibrated to magnetic north for accuracy.
- Which compass error causes incorrect compass indications during turns, especially near north or south headings?
- Turning error (magnetic dip-related). Magnetic dip induces northerly turning errors, leading to overshoot or undershoot on north-south headings during banks.
- Which attitude indicator cue shows pitch up versus pitch down?
- Horizon bar moves down for pitch up; up for pitch down. The horizon bar's movement relative to the fixed aircraft symbol directly indicates nose-up or nose-down attitudes based on gyroscopic sensing.