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handbook

Pilot’s Handbook of Aeronautical Knowledge

FAA-H-8083-25C Version October 20, 2025

Chapter Index

Index

G

TopicPage
General Aviation Manufacturers Association (GAMA)9-2
Generator7-30
Glider1-15
Global positioning system (GPS)3-13, 16-30
-- RAIM capability16-32
-- Selective availability16-31
-- VFR use of GPS16-32
Graphical METARs13-21
Ground adjustable tabs6-11
Ground lighting illusions17-10
Ground power unit (GPU)7-30
Groundspeed (GS)8-9, 16-10, 16-17
Gyroscopic action5-31, 5-32, 8-15
-- Precession8-15
-- Rigidity in space8-15
Gyroscopic attitude indicators6-12
Gyroscopic flight instruments8-15
Gyroscopic principles8-15

H

TopicPage
Hazard2-4
Hazardous attitudes2-5
Hazardous in-flight weather advisory (HIWAS)13-4
Haze17-10
Heading16-10
Heading indicator8-13, 8-19
Heatstroke17-14
High speed flight5-44
-- Hypersonic5-45
-- Subsonic flow5-44, 5-45
-- Supersonic flow5-44
-- Transonic5-45
High speed flight controls5-49
High speed stalls5-36
Horizontal situation indicator16-24
Human behavior2-11
Humidity4-5, 12-13
-- Relative humidity12-13
TopicPage
Hydraulic systems7-31
Hydromechanical6-2
Hyperventilation17-4
Hypoxia17-3
-- Histotoxic hypoxia17-4
-- Hypemic hypoxia17-3
-- Hypoxic hypoxia17-3
-- Stagnant hypoxia17-3

I

TopicPage
Ice5-26
Icing12-24
Ignition7-1
Ignition system7-15
Illusions17-6
Impact pressure chamber and lines8-2
Inches of mercury12-4
Inclinometer8-18
Indicated airspeed (IAS)8-8, 11-18
Induction7-1
Induction system7-7
In-flight weather advisories13-11
-- AIRMET13-11
-- SIGMET13-12
In-runway lighting14-18
Instrument landing system (ILS)3-13
Intelligent flight control systems (IFCS)6-2
International Civil Aviation Organization (ICAO)4-3, 14-22
International Standard Atmosphere (ISA)4-3, 11-2, 12-5
Inversion12-13
Isobars12-12

J

TopicPage
Jet-fueled piston engine7-4

K

TopicPage
Knowledge examination1-21

L

TopicPage
Lags8-27
Land and hold short lights14-18
Landing14-34
Landing charts11-26
Landing gear3-3, 3-7, 7-1, 7-33
Landing gear extended speed (VLE )8-10
Landing gear operating speed (VLO )8-10
Landing performance11-16
Landing strip indicators14-20
TopicPage
Lattitude16-3
Lazy eights5-36
Leading edge device6-9
-- Leading edge cuffs6-10
-- Leading edge flaps6-10
Leads8-27
Licensed empty weight10-5
Lift5-1
Lift/drag ratio5-5
Lighter-than-air aircraft1-15
Lightning12-25
Lightning strike protection3-11
Likelihood of an event2-6
-- Improbable2-6
-- Occasional2-6
-- Probable2-6
-- Remote2-6
Load distribution5-43
Loadmeter7-31
Local airport advisory15-6
Longitude16-3
Lost procedures16-34
Lubrication7-1

M

TopicPage
Mach buffet5-49
Mach number5-45
Magnetic compass8-23
-- Induced errors8-24
-- -- Acceleration error8-26
-- -- Deviation8-24
-- -- Dip errors8-25
-- -- Northerly turning errors8-26
-- -- Oscillation error8-27
-- -- Southerly turning errors8-26
-- -- Variation8-24
Magnetic compasses6-12
Magnetic heading16-16
Magnus effect4-6
Maintenance entries9-10
Managing aircraft automation2-29
Maneuverability5-15
Manifold absolute pressure (MAP)7-6
Maximum landing weight10-5
Maximum ramp weight10-5
Maximum takeoff weight10-5
Maximum weight10-5
Maximum zero fuel weight10-5
Mean aerodynamic chord (MAC)5-13, 10-5
Measurement of direction16-5
Medical certificate17-2
TopicPage
Medical certification requirements1-20
Meridians16-3
Mesopic vision17-21
Mesosphere12-3
Meteorologists13-1
Microjets7-20
Middle ear17-5
Military operation areas (MOAs)15-4
Military training routes (MTRs)15-6
Minimum control speed (VMC)8-10
Minimum equipment lists (MEL)9-9
Mixture control7-9
Moisture12-13
Moment10-5
Moment arm10-4, 5-13
Moment index10-5
Monocoque3-3, 3-8
Motion sickness17-12
Multi-function display (MFD)3-12, 13-18

N

TopicPage
N1 indicator7-23
N2 indicator7-23
National Aeronautics and Space Administration (NASA)6-2, 3-13
National airspace system15-7
National Oceanic and Atmospheric Administration (NOAA)4-5
National security areas (NSAs)15-7
National weather service (NWS)13-1
Navigation instruments3-13
Negative arm10-10
Negative dynamic stability5-15
Negative static stability5-14
Net thrust7-24
Neutral dynamic stability5-15
Neutral static stability5-14
Newton’s Basic Laws of Motion4-5
Newton’s First Law4-5
Newton’s First Law of Motion5-22
Newton’s Second Law4-5
Newton’s Third Law4-6
Newton’s Third Law of Physics5-31
Next generation weather radar system (NEXRAD)13-18
-- Abnormalities13-21
-- Limitations13-21
Night blind spot17-22
Night landing illusions17-27
Night vision17-22
Night vision illusions17-26
TopicPage
Night vision protection17-23
Nondirectional beacon (NDB)3-13
Notices to Airmen (NOTAM)13-5
-- FDC NOTAMs1-12
-- NOTAM composition1-13
-- NOTAM (D) information1-12