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handbook

Pilot’s Handbook of Aeronautical Knowledge

FAA-H-8083-25C Version October 20, 2025
All Library Documents FAA Source PDF

Chapter Index

Index

O

TopicPage
Obstruction lights14-19
-- Dual lighting14-19
-- High intensity white obstruction lights14-19
-- Red obstruction lights14-19
Obstructions on wind12-8
Oil Systems7-16
Operational incidents (OI)14-31
Optical illusions17-10
Original equipment manufacturer (OEM)7-4
Outside air temperature (OAT) gauge7-11, 8-28
Oxygen masks7-38
Oxygen systems7-37
-- Continuous-flow oxygen system7-38
-- Diluter-demand oxygen systems7-38
-- Electrical pulse-demand oxygen system7-38
-- Pressure-demand oxygen systems7-38

P

TopicPage
Parachute jump aircraft operations15-6
Parachute jumps15-11
Parallels16-3
PAVE checklist2-8
Payload10-5
Pennants12-12
Perceive, Process, Perform (3P)2-15
-- Forming good safety habits2-18
Performance11-5
Performance charts11-19
Performance data11-1
Performance instruments3-12
P factor5-30, 5-32
Photopic vision17-20
Pilotage16-12
Pilot certifications1-16
-- Airline transport pilot1-18
-- Commercial pilot1-18
-- Private pilot1-17
-- Recreational pilot1-17
-- Sport pilot1-16
Pilot deviations14-31
Pilot’s operating handbook (POH)9-1, 16-17
TopicPage
Pitch5-13
Pitching5-15
Pitot-static flight instruments8-1
Placards9-4
Plotter16-12
Positive dynamic stability5-15
Positive static stability5-14
Postural considerations17-8
Powered-lift1-15
Powered parachute1-15
Powerplant3-3, 3-7, 7-1, 9-3
Practical test1-22
Precipitation12-17
Precision approach path indicator (PAPI)14-16
Pre-landing14-34
Pressure4-3
Pressure altimeter8-3
Pressure altitude4-4, 11-3
Pressurized aircraft7-34
Preventive maintenance9-10
Primary flight controls6-2
Primary flight display3-12
Primary locations of the FAA Field offices
-- -- Flight Standards District Office (FSDO)1-9
-- -- Flight Standards Service (AFS)1-8
Primary radar14-24
Procedures, vortex avoidance14-28
Professional Air Traffic Controllers Organization (PATCO) strike1-6
Prohibited areas15-3
Propeller3-7, 7-1, 7-4
-- Adjustable-pitch propeller7-6
-- Fixed-pitch propeller7-5
Propeller anti-ice7-41
Propeller blade5-28
Propeller principles5-28
Published VFR routes15-6
Pulse oximeters7-39

R

TopicPage
Radar observations13-3
Radar traffic advisories14-26
Radio communications14-22
Radio equipment14-22
Radio magnetic indicator (RMI)16-24
Radio navigation16-22
Radius of turn5-39
Range performance11-9
TopicPage
Rapid decompression7-36
Reciprocating engines7-2
-- Four-stroke engines7-3
-- Horizontally-opposed engine7-2
-- In-line engines7-2
-- Radial engines7-2
-- Two-stroke engine7-3
Reference datum10-5
Refueling procedures7-29
Region of reversed command11-11
Repairs and alterations9-12
Respect for onboard systems2-29
Restricted areas15-3
Retractable landing gear7-34
Reversible perspective illusion17-26
Risk2-4, 2-6
-- Mitigating risk2-8
Risk management2-3
Rocket1-15
Roll5-13
Rolling5-17
Rotorcraft1-15
-- Gyroplane1-15
-- Helicopter1-15
Rough air5-37
Rudder3-6, 6-4
Ruddervators6-8
Runway and terrain slopes illusion17-10
Runway approach area holding position signs and markings14-14
Runway centerline lighting system (RCLS)14-18
Runway confusion14-31
Runway end identifier lights (REIL)14-17
Runway holding position marking14-8
Runway holding position sign14-6
Runway incursion avoidance14-30
Runway lighting14-17
Runway surface and gradient11-12
Runway width illusion17-10

S

TopicPage
Safety program airmen notification system (SPANS)1-14
Satellite13-4
Scanning techniques17-23
Scotopic vision17-21
Sectional charts16-2
Segmented circle visual indicator system14-20
Self-Imposed stress17-25
Semimonocoque3-3, 3-8
Servicing of oxygen systems7-39
TopicPage
Severity of an event2-6
-- Catastrophic2-6
-- Critical2-6
-- Marginal2-6
-- Negligible2-6
Shock waves5-46
Significant Meteorological Information (SIGMET)13-12
Single-engine best rate-of-climb (VYSE )8-10
Single-pilot resource management2-4
Sinus problems17-5
Situational awareness2-24
-- Obstacles to maintaining situational awareness2-24
Size-distance illusion17-27
Skidding turn5-23
Slipping turn5-23
Slip/skid indicator8-13
Slotted flap6-8
Spatial disorientation17-6
Special airworthiness certificate9-8
Special flight permits9-12
Special use airspace15-3
Spins5-36
Spiral instability5-20
Spoilers6-10
Squall line12-23
SRM and the 5P check2-13
-- Passengers2-14
-- Pilot2-14
-- Plan2-14
-- Plane2-14
-- Programming2-15
Stabilator6-7
Stability5-14, 5-42, 10-2, 10-3
-- Dynamic stability5-14
-- Lateral stability5-17
-- -- Dihedral5-18
-- -- Sweepback and wing location5-18
-- -- Keel effect and weight distribution5-18
-- Longitudinal stability5-15
-- Static stability5-14
-- Vertical stability5-19
Stalls5-25, 5-36
Stall speed performance charts11-27
Standard airworthiness certificate9-7
Standard datum plane (SDP)11-3
Standard empty weight10-5
Standard temperature lapse rate11-2
Standard weights10-5
Starting system7-18
Static pressure chamber and lines8-2
Station10-5
TopicPage
Straight and Level11-5, 14-28
Stratosphere12-3
Stress17-12
Stress management2-21
Student pilot1-20
Student pilot solo requirements1-21
Subcomponents of an airplane3-8
-- Airframe3-8
-- Brakes3-8
-- Electrical system3-8
-- Flight controls3-8
Sublimation12-15
Sumps7-27
Superchargers7-12
Surface aviation weather observations (METARs)13-2
Sweepback5-48
Synopsis13-5
Synthetic vision system17-28

T

TopicPage
Tachometer8-13
Tailwheel landing gear airplanes7-33
Takeoff charts11-20
Takeoff performance11-14
Taxiway centerline lead-on lights14-18
Taxiways, marking and lighting of permanently closed runways14-14
Temperature12-13, 13-13
Temporary flight restrictions (TFR)15-6
Terminal doppler weather radar (TDWR)13-4
Terminal radar service area (TRSA)14-26, 15-7
Tetrahedron14-20
Thermosphere12-3
Thielert, Frank7-4
Three-color visual approach path14-17
Thrust5-1, 5-2
Thrust horsepower (THP)7-6, 7-24
Thunderstorms12-22
Time and distance check from a station16-26
Time Zones16-3
-- Central standard time16-5
-- Eastern standard time16-5
-- Mountain standard time16-5
-- Pacific standard time16-5
Tornadoes12-23
Torque5-30
Torquemeter7-22
Total distance16-17
Touchdown zone lights (TDZL)14-18
Track16-10
Transcontinental air mail route1-4
TopicPage
Transcribed weather broadcast (TWEB) (Alaska only)13-4
Transponder14-25
Trend vectors8-14
Tricycle landing gear airplanes7-33
Trim systems6-10
Trim tabs3-6, 6-10
Tropopause12-3
Troposphere12-2
True airspeed (TAS)8-9, 11-18
True course16-16
True heading16-16
Truss structure3-8
T-tail configuration6-6
Turbine engines7-20
-- Turbofan7-21
-- Turbojet7-20
-- Turboprop7-21
-- Turboshaft7-21
Turbosuperchargers7-12, 7-13
Turbulence12-24
Turn indicators8-13, 8-16
-- Turn-and-slip indicator8-16
Turn rate indicator8-13

U

TopicPage
Ultralight vehicle1-14
Uncontrolled airspace15-3
-- Class G airspace15-3
Universal coordinated time (UTC)16-5
Unmanned free balloons15-11
Upper air observations13-2
Useful load10-5

V

TopicPage
VA11-18
Variable inlet guide vane (VIGV)7-24
Variation16-6, 16-16
Vector analysis16-13
Vehicle (driver) deviations14-31
Vertical card magnetic compass8-27
Vertical speed indicator (VSI)8-7, 8-13
Very high frequency (VHF)16-22
Very high frequency (VHF) omni-directional radio range (VOR)3-13, 16-22
Very light jets (VLJs)7-20
Vestibular illusions
-- Coriolis illusion17-7
-- Elevator illusion17-8
-- Graveyard spiral17-7
TopicPage
-- Somatogravic illusion17-7
-- The leans17-7
vestibular system17-6
VFE11-18
VFR terminal area charts16-2
VFR waypoints16-33
Vg diagram5-37
Viscosity4-2
Visibility12-17
Vision in flight17-19
Visual approach slope indicator (VASI)14-16
visual flight rules (VFR)16-1
Visual glide slope indicators14-16
Visual illusions17-8
-- Autokinesis17-8
-- False horizon17-8
VLE11-18
VLO11-18
VNE11-19
VNO11-19
VOR/DME RNAV16-28
Vortex avoidance procedures14-28
Vortex behavior14-27
Vortex generation14-26
Vortex strength14-27
VS011-18
VS111-18
V-Tail6-8
VX11-18
VY11-18