Comprehensive Private Pilot Ground School Study Notes

Airman Qualifications, Certificates, and Privileges

• Required Documents to Act as Pilot in Command (PIC):

  • Government-issued photo identification (driver's license, passport).
  • Pilot certificate (e.g., Private Pilot Certificate).
  • Current and valid medical certificate (or BasicMed compliance).

• Private Pilot Privileges and Limitations:

  • Privileges: Act as PIC of an aircraft and carry passengers.
  • Limitations:
  • Cannot fly for compensation or hire.
  • Must pay at least the pro-rata (proportional) share of operating expenses (fuel, oil, airport expenditures, or rental fees).

• Flight Review and Recency Requirements:

  • Flight Review: Must complete a flight review every $24 proposal calendar months$ consisting of a minimum of $1 proposal hour$ of flight training and $1 proposal hour$ of ground training, receiving a logbook endorsement from an authorized Certificated Flight Instructor (CFR/CFI).

• Passenger Currency Requirements:

  • Accomplish at least $3 proposal takeoffs and landings$ within the preceding $90 proposal days$ in an aircraft of the same category, class, and type (if a type rating is required).
  • If carrying passengers at night, the $3 proposal landings$ must be made to a full stop and performed during nighttime currency hours in the same category, class, and type.

• Definitions of Nighttime:

  • Night Flying (Logbook / Aircraft Lights): Defined as the period between the end of evening civil twilight and the beginning of morning civil twilight.
  • Night Passenger Currency: Defined as the period from $1 proposal hour$ after sunset to $1 proposal hour$ before sunrise.

• Medical Certification:

  • Validity duration depends on the pilot's age at the time of the examination and the class of medical certificate issued.

• Airmen Certification Definitions:

  • Category: Broad classification of aircraft (e.g., Airplane, Rotorcraft, Glider, Lighter-than-air).
  • Class: Classification within a category having similar operating characteristics (e.g., Single-Engine Land, Single-Engine Sea, Multi-Engine Land, Multi-Engine Sea).
  • Type: Specific make and basic model of aircraft (e.g., Cessna 150, B-737).

• Type Rating Requirements:

  • A type rating is required when acting as PIC of:
  • Large aircraft with a maximum certificated takeoff weight of $12,500 proposal lbs$ or more.
  • Turbojet-powered aircraft.
  • Other aircraft specified by the FAA Administrator.

• Additional Pilot Endorsements:

  • Tailwheel aircraft.
  • High-performance aircraft (engine with more than $200 proposal horsepower$).
  • Complex aircraft / Constant-speed propeller.
  • High-altitude aircraft (service ceiling or maximum operating altitude above $25,000 proposal ft\text{ MSL}$).

• Administrative Reporting Deadlines:

  • Change of Permanent Mailing Address: Must notify the FAA Airmen Certification Branch in writing within $30 proposal days$ to continue exercising certificate privileges.
  • DUI / Motor Vehicle Actions: Must report any motor vehicle action involving drugs or alcohol to the FAA Civil Aviation Security Division within $60 proposal days$.

Aircraft Airworthiness, Documents, and Inspections

• Required Aircraft Onboard Documents (ARROW):

  • A - Airworthiness Certificate: Remains valid as long as the aircraft is maintained in an airworthy condition in accordance with maintenance regulations.
  • R - Registration Certificate: State/federal registration certificate; federal registration expires every $7 proposal years$.
  • R - Radio Station License: Required only for international flights or operations outside the United States.
  • O - Operating Limitations: Found in the approved Pilot's Operating Handbook (POH), Airplane Flight Manual (AFM), placards, and instrument markings.
  • W - Weight and Balance Equipment List: Contains the current, updated weight and balance data along with the basic empty weight and equipment list located in the POH.
  • Note: Must include a GPS operating manual/supplement onboard if a GPS system is installed and utilized.

• Airworthiness Directives (ADs):

  • Mandatory regulatory orders issued by the FAA to correct known unsafe conditions in an aircraft, engine, propeller, or appliance.
  • Emergency ADs: Require immediate compliance prior to further flight.
  • One-Time ADs: Require compliance once, after which no further action is required for that specific issue.
  • Recurring / Urgent / General ADs: Require repeated compliance at specified time or hour intervals.

• Required Aircraft Inspections (AVIATE / A1ATE):

  • Annual Inspection: Required every $12 proposal calendar months$ for all aircraft.
  • VOR Check: Required every $30 proposal days$ for IFR operations.
  • 100-Hour Inspection: Required for aircraft operated for hire or used to give flight instruction for hire.
  • May be overflown by a maximum of $10 proposal hours$ solely while en route to a location where the inspection can be completed.
  • The excess hours used to reach the maintenance location count toward the next $100 proposal hour$ cycle.
  • An Annual inspection can substitute for a $100 proposal hour$ inspection, but a $100 proposal hour$ inspection cannot substitute for an Annual inspection.
  • Altimeter & Pitot-Static System: Inspected every $24 proposal calendar months$ for IFR flight.
  • Transponder: Inspected every $24 proposal calendar months$.
  • Emergency Locator Transmitter (ELT): Inspected every $12 proposal calendar months$.
  • The ELT battery must be replaced or recharged after $1 proposal hour$ of cumulative misuse or when $50 proposal \text{\%}$ of its useful battery life has expired.

• Required Equipment for Day VFR Flight (FAR 91.205(b) - ATOMATO FLAMES):

  • A - Altimeter
  • T - Tachometer for each engine
  • O - Oil temperature gauge for each engine using liquid cooling
  • M - Manifold pressure gauge for each altitude engine
  • A - Airspeed indicator
  • T - Temperature gauge for each liquid-cooled engine
  • O - Oil pressure gauge for each engine
  • F - Fuel quantity gauge for each tank
  • L - Landing gear position indicator (if retractable gear)
  • A - Anti-collision light system (approved red or white aviation light system)
  • M - Magnetic compass
  • E - Emergency Locator Transmitter (ELT)
  • S - Seatbelts and shoulder harnesses

• Required Equipment for Night VFR Flight (FAR 91.205(c) - FLAPS):

  • All day VFR equipment (ATOMATO FLAMES), plus:
  • F - Fuses (3 of each kind or 1 complete set of spare fuses)
  • L - Landing light (if airplane is operated for hire)
  • A - Anti-collision light system
  • P - Position lights (navigation lights)
  • S - Source of electrical energy (alternator or generator)

• Operation with Inoperative Equipment (FAR 91.213):

  • An aircraft can fly with inoperative equipment if the equipment is not required by FAR 91.205, the aircraft's Type Certificate Data Sheet (TCDS), a Kinds of Operations Equipment List (KOEL), or an Airworthiness Directive (AD).
  • The inoperative equipment must be deactivated (e.g., pulling and collaring a circuit breaker) or removed, and placarded "Inoperative" or "Inop".
  • Minimum Equipment List (MEL): An FAA-approved list specific to an aircraft serial number and registration issued by the Flight Standards District Office (FSDO) allowing operation with specific inoperative items. Non-turbine aircraft typically do not operate under an MEL and instead utilize FAR 91.213 provisions.
  • Kinds of Operations Equipment List (KOEL): A list provided by manufacturers in Section 2 of the POH detailing required equipment for specific flight conditions.

Weather Theory, Reports, and Briefings

• Standard Atmosphere (ISA) at Sea Level:

  • Standard Temperature: $15^\text{o}\text{C}$ ($59^\text{o}\text{F}$).
  • Standard Barometric Pressure: $29.92 proposal \text{inHg}$ ($1013.2 proposal \text{mb}$ / $1013.2 proposal \text{hPa}$).

• Thunderstorm Formation and Stages:

  • Required Ingredients: Unstable atmosphere, sufficient moisture, and a lifting action (thermals, fronts, or terrain).
  • Stages of Development:
  • Cumulus Stage: Building stage characterized by updrafts only.
  • Mature Stage: Marked by the onset of surface precipitation; contains both severe updrafts and downdrafts.
  • Dissipating Stage: Characterized by downdrafts only and the formation of an anvil top.

• Types of Fog:

  • Radiation Fog: Forms on clear nights with light winds over land as the ground cools via radiation cooling, bringing surrounding air down to its dew point. Common in Florida.
  • Advection Fog: Forms when warm, moist air moves horizontally over a cold surface, cooling the air to its dew point. Widespread, long-lasting, and common along Florida coasts.
  • Upslope Fog: Forms as moist air is forced up rising terrain and cools adiabatically to its dew point.
  • Steam Fog: Forms when cold, dry air moves over warm water, causing evaporated moisture to condense into the cold air.
  • Ice Fog: Occurs in extremely cold temperatures when water vapor sublimates directly into ice crystals.

• Types of Aircraft Icing:

  • Induction Icing: Affects air intakes, including carburetor icing in the engine induction system.
  • Instrument Icing: Ice blockage of the pitot tube or static ports.
  • Structural Icing: Ice accumulation on the airframe structure:
  • Rime Ice: Rough, milky ice formed by instantaneous freezing of small supercooled water droplets.
  • Clear Ice: Smooth, clear sheet of ice formed by slow freezing of large supercooled water droplets.
  • Mixed Ice: Combination of clear and rime icing.

• Weather Briefings:

  • Types of Briefings:
  • Standard Briefing: Complete weather picture obtained prior to flight.
  • Abbreviated Briefing: Used to update a previous briefing or request specific items.
  • Outlook Briefing: Requested when departure time is $6 proposal \text{hours}$ or more in the future.
  • Elements of a Standard Briefing: Synopsis, adverse conditions, current weather, en route forecast, destination forecast, winds aloft, NOTAMs, and ATC delays.
  • Briefing Sources: Electronic Flight Bag (EFB), online at 1800wxbrief.com, or telephone / radio via Flight Service Station (FSS).

• Weather Reports and Forecast Parameters:

  • METAR Coverage: Surface weather sensors measure conditions within a $5 proposal \text{statute mile}$ radius of the terminal area.
  • Terminal Aerodrome Forecast (TAF): Forecast covering a $5 proposal \text{statute mile}$ area, valid for $24 proposal \text{hours}$ to $30 proposal \text{hours}$.
  • Convective SIGMET: Valid for $2 proposal \text{hours}$. Issued for:
  • Severe thunderstorms with surface winds \text{\ge} 50 proposal \text{knots}.
  • Hail at the surface \text{\ge} 3/4 proposal \text{inch} in diameter.
  • Tornadoes, embedded thunderstorms, lines of thunderstorms, or thunderstorms producing heavy precipitation affecting \text{\ge} 40 proposal \text{\%} of an area of at least $3,000 proposal \text{sq mi}$.
  • SIGMET (Non-Convective): Valid for $4 proposal \text{hours}$. Issued for severe icing not associated with thunderstorms, severe or extreme turbulence or Clear Air Turbulence (CAT) not associated with thunderstorms, widespread dust storms or sandstorms lowering visibility below $3 proposal \text{statute miles}$, and volcanic ash.
  • AIRMET: Valid for $6 proposal \text{hours}$.
  • AIRMET Sierra: IFR conditions (ceilings below $1,000 proposal \text{ft}$ or visibility below $3 proposal \text{statute miles}$) and widespread mountain obscurations.
  • AIRMET Tango: Moderate turbulence, non-convective low-level wind shear potential below $2,000 proposal \text{ft AGL}$, and sustained surface winds \text{\ge} 30 proposal \text{knots}.
  • AIRMET Zulu: Moderate icing and freezing level heights.

• Frontal Systems (CAL - Cold, Occluded, Warm, Stationary):

  • Cold Front: Fast-moving; produces severe thunderstorms, heavy rain, gusty winds, and rapid weather changes.
  • Warm Front: Slow-moving; produces steady rain, low ceilings, poor visibility, and smooth transitions.
  • Occluded Front: Cold front catches up to a warm front; produces widespread cloudiness and continuous precipitation.
  • Stationary Front: Boundary between air masses remains stationary; produces prolonged marginal weather.

• Pressure Systems and Stability:

  • High-Pressure System: Air flows clockwise, outward, and downward. Associated with clear skies, good visibility, and stable air.
  • Low-Pressure System: Air flows counterclockwise, inward, and upward. Associated with clouds, precipitation, and turbulent air.
  • Atmospheric Stability: Resistance of air to vertical movement. If the environmental lapse rate is less than the adiabatic lapse rate, air is stable; if greater, air is unstable.
  • Stable Air: Characterized by smooth air, poor surface visibility, stratiform clouds, and steady precipitation (IFR concerns).
  • Unstable Air: Characterized by turbulence, good visibility between showers, cumulus or cumulonimbus clouds, and shower precipitation (VFR concerns).

Navigation, Cross-Country Flight Planning, and Regulations

• Required Preflight Action (FAR 91.103 - RAW FAT):

  • R - Runway lengths at airports of intended use.
  • A - Alternates available if the flight cannot be completed.
  • W - Weather reports and forecasts.
  • F - Fuel requirements.
  • A - ATC known traffic delays.
  • T - Takeoff and landing distance performance data.

• VFR Fuel Requirements (FAR 91.151):

  • Day VFR: Must carry enough fuel to fly to the first point of intended landing and, assuming normal cruising speed, for at least $30 proposal \text{minutes}$ beyond that point.
  • Night VFR: Must carry enough fuel to fly to the intended destination and, assuming normal cruising speed, for at least $45 proposal \text{minutes}$ beyond that point.

• Right-of-Way Rules (FAR 91.113):

  • 1. Aircraft in distress or an emergency situation.
  • 2. Balloons.
  • 3. Gliders.
  • 4. Airships / Aircraft refueling in flight.
  • 5. Powered parachutes, rotorcraft, and powered airplanes.

• Minimum Safe Altitudes (FAR 91.119):

  • Congested Areas: An altitude of $1,000 proposal \text{ft}$ above the highest obstacle within a horizontal radius of $2,000 proposal \text{ft}$ of the aircraft.
  • Other Than Congested Areas: An altitude of $500 proposal \text{ft}$ above the surface, except over open water or sparsely populated areas (must remain at least $500 proposal \text{ft}$ away from any person, vessel, vehicle, or structure).
  • Anywhere: An altitude allowing, if a power unit fails, an emergency landing without undue hazard to persons or property on the surface.

• Wake Turbulence Generation and Avoidance:

  • Cause: Generated by wingtip vortices whenever an aircraft is producing lift.
  • Worst Case: Heavy, Clean, and Slow aircraft (high weight, flaps/gear retracted, low airspeed yielding high angle of attack).
  • Behavior: Vortices drift outward and sink downward at approximately $400 proposal \text{fpm}$ to $500 proposal \text{fpm}$. Light crosswinds can carry vortices onto parallel runways; light tailwinds can push vortices forward into touchdown zones. Persistence can last $2 proposal \text{--} 3 proposal \text{minutes}$ or longer in calm air.
  • Takeoff Avoidance: Rotate prior to the preceding large aircraft's rotation point, climb above its flight path, and turn upwind.
  • Landing Avoidance: Stay at or above the preceding aircraft's flight path and touch down past its touchdown point.
  • Helicopters: Avoid hovering or low-speed flight paths; allow extra separation.
  • ATC Separation: ATC spacing is a regulatory minimum; the PIC is ultimate authority and should request additional separation when necessary.

• VFR Flight Plans:

  • Activation and Closing: Activated post-departure via FSS radio, phone, or EFB app. Closed by contacting FSS directly upon landing.
  • Timeouts: If not activated, flight plans remain in FSS systems for $1 proposal \text{hour}$ past scheduled departure. Once active, search and rescue (SAR) operations begin if not closed within $30 proposal \text{minutes}$ past Estimated Time En Route (ETE).
  • Flight Following: Flight Service manages VFR flight plans (SAR protection). ATC manages Flight Following (radar advisories); Flight Following does not open, close, or automatically manage SAR flight plans.

• Navigation Terms and Calculations:

  • Magnetic Deviation: Compass error caused by internal aircraft magnetic fields (avionics, electrical systems, airframe metal). Displayed on the compass deviation card.
  • True Course (TC) to Compass Heading (CH):
  • Apply Wind Correction Angle (WCA) to True Course (TC) to get True Heading (TH).
  • Apply Magnetic Variation (VAR) to True Heading (TH) to get Magnetic Heading (MH).
  • Apply Magnetic Deviation (DEV) to Magnetic Heading (MH) to get Compass Heading (CH).
  • True Airspeed (TAS) vs. Groundspeed (GS): TAS is actual speed through the air mass; GS is speed over the ground (TAS corrected for headwind/tailwind).

• Lost Procedures (5 Cs):

  • Climb: Climb for better radio reception and visual landmarks.
  • Communicate: Contact FSS, ATC, or call on $121.5 proposal \text{MHz}$.
  • Confess: Explain position uncertainty to air traffic controllers.
  • Comply: Follow radar vectors or instructions provided.
  • Conserve: Reduce power to extend fuel endurance.

National Airspace System (NAS)

• Airspace Classifications: Controlled (Class A, B, C, D, E), Uncontrolled (Class G), Special Use Airspace, and Other Airspace.

• Controlled Airspace Operating Requirements and VFR Minimums:

  • Class A: From $18,000 proposal \text{ft MSL}$ (FL180) to $60,000 proposal \text{ft MSL}$ (FL600). IFR flight plan and clearance required; Mode C transponder and ADS-B Out required.
  • Class B: Surface to $10,000 proposal \text{ft MSL}$ (individually tailored upside-down wedding cake). Explicit ATC clearance required ("cleared into Class B airspace"). Mode C and ADS-B Out required within $30 proposal \text{NM}$ Mode C Veil. VFR Visibility: $3 proposal \text{statute miles}$. Cloud Clearance: Clear of Clouds.
  • Class C: Surface to $4,000 proposal \text{ft AGL}$ ($5 proposal \text{NM}$ core, $10 proposal \text{NM}$ outer shelf from $1,200 proposal \text{ft}$ to $4,000 proposal \text{ft AGL}$). Two-way radio communication must be established (controller says callsign); Mode C transponder and ADS-B Out required. VFR Weather Minimums: $3 proposal \text{statute miles}$ visibility, $500 proposal \text{ft}$ below, $1,000 proposal \text{ft}$ above, $2,000 proposal \text{ft}$ horizontal ($3\text{-}152$).
  • Class D: Surface to $2,500 proposal \text{ft AGL}$ ($4 proposal \text{NM}$ radius). Two-way radio communication required prior to entry. VFR Weather Minimums: $3\text{-}152$ ($3 proposal \text{statute miles}$ visibility, $500 proposal \text{ft}$ below, $1,000 proposal \text{ft}$ above, $2,000 proposal \text{ft}$ horizontal).
  • Class E: Controlled airspace not A, B, C, or D.
  • Below $10,000 proposal \text{ft MSL}$: $3\text{-}152$ ($3 proposal \text{statute miles}$ visibility, $500 proposal \text{ft}$ below, $1,000 proposal \text{ft}$ above, $2,000 proposal \text{ft}$ horizontal).
  • At or Above $10,000 proposal \text{ft MSL}$: $5\text{-}111$ ($5 proposal \text{statute miles}$ visibility, $1,000 proposal \text{ft}$ below, $1,000 proposal \text{ft}$ above, $1 proposal \text{statute mile}$ horizontal).
  • Class G: Uncontrolled airspace.

• Special Use Airspace (MCPRAW):

  • M - Military Operations Area (MOA): VFR flight permitted; extreme caution advised due to military activity.
  • C - Controlled Firing Area (CFA): Firing activities suspended immediately when non-participating aircraft approach.
  • P - Prohibited Area: Aircraft flight prohibited for national security or welfare reasons.
  • R - Restricted Area: Contains invisible hazards; entry requires authorization from the controlling agency.
  • A - Alert Area: High volume of pilot training or unusual aerial activity.
  • W - Warning Area: Extends $3 proposal \text{NM}$ outward from US coast; contains hazards to non-participating aircraft.
  • National Security Area (NSA): Requested voluntary avoidance for security of ground facilities.

• Transponder / ADS-B Out Mandatory Airspace:

  • Class A, Class B, and Class C airspace.
  • Within $30 proposal \text{NM}$ of Class B primary airports from surface to $10,000 proposal \text{ft MSL}$ (Mode C Veil).
  • Above the ceiling and within lateral limits of Class C airspace.
  • Above $10,000 proposal \text{ft MSL}$ in the contiguous US, excluding airspace at or below $2,500 proposal \text{ft AGL}$.

• Special VFR (SVFR) Limitations:

  • Requires minimum $1 proposal \text{statute mile}$ flight visibility and ability to remain clear of clouds.
  • Prohibited at specific major Class B primary airports (e.g., Tampa International Airport / KTPA) per FAR 91.157.

• Speed Limits:

  • Below $10,000 proposal \text{ft MSL}$: $250 proposal \text{knots}$ IAS max.
  • At or below $2,500 proposal \text{ft AGL}$ within $4 proposal \text{NM}$ of Class C or Class D primary airport: $200 proposal \text{knots}$ IAS max.
  • Airspace underlying Class B or VFR corridor through Class B: $200 proposal \text{knots}$ IAS max.

Aerodynamics, Flight Controls, Performance, and Systems

• Four Forces of Flight: Lift, Weight, Thrust, and Drag.

• Primary Flight Controls and Axes of Movement:

  • Ailerons: Control Roll around the Longitudinal Axis (Provides lateral stability).
  • Elevator / Stabilator: Controls Pitch around the Lateral Axis (Provides longitudinal stability).
  • Rudder: Controls Yaw around the Vertical Axis (Provides directional stability).

• Principles of Lift:

  • Bernoulli's Principle: High-velocity airflow over the curved upper surface of the wing creates an area of lower static pressure, while slower air underneath creates higher pressure, resulting in an upward lifting force.
  • Newton's Third Law: Air deflected downward off the lower wing surface creates an equal and opposite upward reactive force.

• Types of Drag:

  • Parasite Drag: Increases with airspeed. Composed of:
  • Form Drag: Drag caused by the shape of the airframe interrupting airflow.
  • Skin Friction Drag: Drag caused by air molecules slowing down across the rough surface of the aircraft.
  • Interference Drag: Drag created by intersecting airflows from different airframe structures (e.g., wing and fuselage junction).
  • Induced Drag: Decreases with airspeed. Induced drag is the backward-tilted vector component of total lift created as a byproduct of wingtip vortices and downwash.
  • Maximum Lift-to-Drag Ratio ($L/D_{\max}$): The airspeed where parasite drag and induced drag are equal, producing maximum gliding distance ($V_g$).

• Wing Terminology and CG Effects:

  • Camber: The curvature of the wing airfoil; modified by extending flaps.
  • Angle of Incidence: Fixed angle between the wing chord line and the longitudinal axis of the fuselage (cannot be changed in flight).
  • Center of Gravity (CG): Point where total weight is concentrated.
  • Forward CG: Results in higher elevator control forces, lower cruise speed, higher stall speed, increased stability, favorable stall recovery, and nose-heavy landing behavior.
  • Aft CG: Results in lighter control forces, higher cruise speed, lower stall speed, decreased stability, and adverse/difficult stall recovery due to shorter moment arm to the elevator.

• Stalls and Spin Recovery:

  • Stall: Occurs when the critical angle of attack ($AOA_{\text{crit}}$) is exceeded.
  • Wing Twist: Wings are designed with higher angle of incidence at the root than the tip, causing the wing root to stall first and preserving aileron authority during early stall entry.
  • Spin Recovery Procedure (PARE):
  • P - Power Idle
  • A - Ailerons Neutral
  • R - Rudder Full Opposite to direction of spin
  • E - Elevator Forward to break the stall

• Performance Airspeeds ($V\text{-speeds}$):

  • $V_{SO}$: Stalling speed in landing configuration ($48 proposal \text{KIAS}$).
  • $V_{S1}$: Stalling speed in specified configuration ($55 proposal \text{KIAS}$).
  • $V_R$: Rotation speed ($55 proposal \text{KIAS}$).
  • $V_X$: Best angle of climb ($70 proposal \text{KIAS}$); maximum altitude in shortest horizontal distance.
  • $V_Y$: Best rate of climb ($75 proposal \text{KIAS}$); maximum altitude in shortest time.
  • $V_G$: Best glide speed ($74 proposal \text{KIAS}$); decreases at lower operating weights.
  • $V_A$: Maneuvering speed; maximum speed at which full control deflection can be made without structural damage. Decreases with lighter aircraft weight.
  • Formula: V_{A,\text{actual}} = V_{A,\text{max}} \times \root \frac{\text{Current Weight}}{\text{Max Gross Weight}}

• Altitudes and Density Altitude:

  • Pressure Altitude (PA): Altitude above Standard Datum Plane ($29.92 proposal \text{inHg}$).
  • Formula: $PA = \text{Field Elevation} + (29.92 - \text{Current Altimeter Setting}) \times 1,000$
  • Density Altitude (DA): Pressure altitude corrected for non-standard temperature.
  • Formula: $DA = PA + [120 \times (\text{OAT} - \text{ISA}_{\text{temp}})]$
  • High density altitude is caused by High Heat, High Altitude, and High Humidity ("3 Highs"), reducing engine thrust and aerodynamic lift.

• Left-Turning Tendencies:

  • Torque: Clockwise engine rotation creates equal leftward rolling motion.
  • Gyroscopic Precession: Force applied to propeller disc is felt $90^\text{o}$ later in direction of rotation (causes left yaw as tail raises in tailwheel aircraft).
  • P-Factor (Asymmetric Loading): Down-going prop blade on right side has higher AOA and thrust than up-going blade at high AOAs.
  • Spiraling Slipstream: High-velocity propeller wash spirals around fuselage and strikes left side of vertical stabilizer.

• Pitot-Static and Gyroscopic Instruments:

  • Airspeed Indicator (ASI): Uses dynamic (pitot) ram pressure and static pressure.
  • Altimeter: Measures static pressure relative to standard pressure trapped inside an aneroid wafer.
  • Vertical Speed Indicator (VSI): Measures rate of static pressure change using a calibrated leak mechanism (yields lag during abrupt maneuvers).
  • Gyroscopic Instruments:
  • Attitude Indicator: Vacuum-driven, operates on rigidity in space in horizontal plane.
  • Heading Indicator: Vacuum-driven, operates on rigidity in space in vertical plane (precesses, reset every $15 proposal \text{minutes}$).
  • Turn Coordinator: Electrically-driven, uses precession to show rate of turn and rate of roll. Uses inclinometer ball (Skid = too much rudder; Slip = too little rudder).

Aircraft Engine, Systems, and Aeromedical Factors

• Aircraft Engine Specifications (Lycoming O-320-E2D):

  • Engine Acronym: ELHAN (Engine, Lycoming, Horizontally opposed, Air-cooled, Normally aspirated).
  • Specifications: $150 proposal \text{horsepower}$, 4-cylinder, air-cooled, horizontally opposed, normally aspirated (no turbocharger/supercharger).
  • Four-Stroke Cycle: Intake (piston pulls air-fuel mix), Compression (piston compresses mix), Power (spark plugs ignite mix forcing piston down), Exhaust (piston pushes burned gases out).
  • Oil System: Capacity of $6 proposal \text{quarts}$. Lubricates, cools, seals, and cleans engine. SAE 40 above $40^\text{o}\text{F}$, SAE 30 below $40^\text{o}\text{F}$, or multi-viscosity oil.
  • Propeller: Fixed-pitch Hartzell $76 proposal \text{inch}$ diameter propeller.
  • Fuel System: Gravity-fed system with two wing tanks ($20 proposal \text{gallons}$ per wing; total $40 proposal \text{gallons}$, $38 proposal \text{gallons}$ usable, $2 proposal \text{gallons}$ unusable). Avgas weight is $6 proposal \text{lbs/gal}$.
  • Grades/Colors: 100LL (Blue), 100 (Green), 80 (Red), Jet A (Clear/Straw).
  • Electrical System: Engine supplies $14 proposal \text{V}$ DC power using engine-driven alternator and $12 proposal \text{V}$ battery mounted on firewall forward left side. Split bus bar. Dual magnetos provide self-powered ignition to two spark plugs per cylinder (engine continues running during complete electrical failure). Negative ammeter reading indicates electrical load exceeds alternator output (battery discharging).

• Aeromedical Physiology and Illusions:

  • Body Orientation Systems: Vestibular (inner ear), Somatosensory (nerves/muscles), and Visual (eyes).
  • Types of Hypoxia (SHH):
  • Hypoxic Hypoxia: Insufficient oxygen available to lungs at high altitude.
  • Hypemic Hypoxia: Inability of blood/hemoglobin to transport oxygen (carbon monoxide poisoning).
  • Stagnant Hypoxia: Oxygen-rich blood flow impaired due to poor circulation or high G-loads.
  • Histotoxic Hypoxia: Inability of tissue cells to utilize oxygen (alcohol, drugs, toxins).
  • In-Flight Illusions (ICEFLEX): Inversion, Coriolis, Elevator, False Horizon, Leans, Autokinesis, Graveyard Spiral, Somatogravic.
  • Hyperventilation: Rapid or deep breathing reducing carbon dioxide levels in blood. Symptoms: tingling in hands/lips, dizziness. Treatment: slow breathing, talk aloud.
  • Scuba Diving Rules: Wait $12 proposal \text{hours}$ before flying up to $8,000 proposal \text{ft}$ following non-decompression dives; wait $24 proposal \text{hours}$ for decompression dives or flying above $8,000 proposal \text{ft}$.
  • FAR 91.17 Alcohol/Drug Limits: Minimum $8 proposal \text{hours}$ bottle-to-throttle, blood alcohol concentration (BAC) below $0.04 proposal \text{\%}$, or while using any drug affecting safety.
  • Supplemental Oxygen (FAR 91.211):
  • $12,500 proposal \text{ft MSL}$ to $14,000 proposal \text{ft MSL}$: Crew must use oxygen if at altitude over $30 proposal \text{minutes}$.
  • Above $14,000 proposal \text{ft MSL}$: Flight crew must use oxygen continuously.
  • Above $15,000 proposal \text{ft MSL}$: Passengers must be provided supplemental oxygen.
  • Recommended above $5,000 proposal \text{ft}$ at night to preserve night vision.

Aeronautical Decision Making (ADM) and Risk Management

• Hazardous Attitudes and Antidotes:

  • Anti-Authority: "Don't tell me." \text{\rightarrow} Follow the rules, they are usually right.
  • Impulsivity: "Do it quickly." \text{\rightarrow} Not so fast, think first.
  • Invulnerability: "It won't happen to me." \text{\rightarrow} It could happen to me.
  • Macho: "I can do it." \text{\rightarrow} Taking chances is foolish.
  • Resignation: "What's the use?" \text{\rightarrow} I am not helpless, I can make a difference.

• Risk Management Models:

  • FRAT (Flight Risk Assessment Tool): Evaluates risk variables (Pilot, Aircraft, Environment, Mission). Written FRATs force deep qualitative risk evaluation over basic numerical scoring.
  • TEAM Model: Transfer risk, Eliminate risk, Accept risk, Mitigate risk.
  • PAVE Checklist: Pilot, Aircraft, enVironment, External Pressures.
  • DECIDE Model: Detect change, Estimate need to react, Choose desirable outcome, Identify action, Do necessary action, Evaluate effect.