Index

A

Abnormal Vibrations .................................................11-22

Accessory Gearbox ......................................................4-10

Advancing Blade..........................................................2-19

After Landing and Securing ...........................................8-6

Aircraft Servicing...........................................................8-3

Airflow horizontal part.............................................................2-9

vertical part .................................................................2-9

Airflow in Forward Flight............................................2-19

Airfoil.............................................................................2-7

nonsymmetrical airfoil (cambered) ............................2-8

symmetrical Airfoil ....................................................2-8

Airframe .........................................................................4-1

Angle of attack (AOA).......................................... 2-8,2-13

Angle of incidence ................................................ 2-8,2-12

Anti-Icing Systems.......................................................4-19

Antitorque Drive Systems ..............................................4-8

Antitorque Pedals .................................................... 1-6,3-4

Antitorque System .........................................................4-7

Fenestron ....................................................................4-7

NOTAR® ...................................................................4-8

Antitorque System Failure .........................................11-16

Approach and Landing ...................................... 10-11,12-9

Approaches ..................................................................9-18

Astigmatism .................................................................12-2

Atmospheric Illusions ................................................12-10

Autopilot ......................................................................4-18

Autorotation ................................................ 2-25,2-26,11-2

Autorotational Performance ...........................................7-4

Autorotation With Turns ..............................................11-6

B

Bearingless Rotor System ..............................................4-4

Belt Drive Clutch .........................................................4-12

Bernoulli's Principle .......................................................2-3

Blade span ......................................................................2-7

C

Callouts ......................................................................13-18

Carburetor Ice ..............................................................4-14

Center of Gravity ...........................................................6-2

Center of pressure ..........................................................2-8

Centrifugal Clutch........................................................4-12

CG Aft of Aft Limit .......................................................6-3

Chord..............................................................................2-8

Chord line.......................................................................2-8

Clutch ...........................................................................4-12

Coaxial rotors .......................................................... 1-4,4-6

Cockpit Lights..............................................................12-8

Collective pitch control ........................................... 1-5,3-2

Collision Avoidance at Night.......................................12-9

Combustion Chamber ..................................................4-10

Compressor ....................................................................4-9

Coning ..........................................................................2-15

Control Inputs cyclic ..........................................................................1-5

Coriolis Effect (Law of Conservation of Angular

Momentum)..................................................................2-16

Critical Conditions .....................................................11-12

Crosswind Considerations During Takeoffs ................9-13

D d’Amécourt, Gustave de Ponton ....................................1-1

Decision-Making Process ............................................13-4

Density Altitude .............................................................7-2

Determining Empty Weight ...........................................6-2

Dissymmetry of Lift.....................................................2-23

Downwash....................................................................2-11

Drag......................................................................... 2-3,2-6

induced drag ...............................................................2-7

parasite drag ...............................................................2-7

profile drag .................................................................2-6

total drag .....................................................................2-7

Dynamic Rollover ......................................................11-11

• E
• Effective Translational Lift (ETL) ...............................2-22
• Effect of Weight Versus Density Altitude .....................7-3

elastomeric bearings.......................................................4-6

Electrical Systems ........................................................4-16

Emergency Equipment and Survival Gear .................11-27

Engine Fuel Control System ........................................4-14

Engines...........................................................................4-8

reciprocating engine ...................................................4-8

turbine engine .............................................................4-8

Engine Starting and Rotor Engagement................ 8-3,12-8

En Route Procedures ....................................................12-9

Environmental Systems ...............................................4-18

F

Fenestron ........................................................................1-3

Flicker Vertigo .............................................................12-7

Flight Mode Annunciator (FMA) ..............................13-18

Flightpath velocity .........................................................2-8

Four Fundamentals.........................................................9-2

Freewheeling Unit..........................................................4-7

Fuel Supply System .....................................................4-13

Fuselage .........................................................................4-2

G

General Aviation Manufacturers Association (GAMA) 5-1

Go-Around ...................................................................9-20

Governor/Correlator .......................................................3-2

Ground Lighting Illusions ..........................................12-10

Ground Reference Maneuvers .....................................9-13

rectangular course.....................................................9-14

S-turns ......................................................................9-15

turns around a point ..................................................9-16

Ground Resonance .....................................................11-11

Gyroscopic Precession .................................................2-17

H

Heading Control .............................................................3-4

Height/Velocity Diagram ...............................................7-2

helicopter........................................................................1-1

Helicopter Night VFR Operations .............................12-10

High and Low Density Altitude Conditions ..................7-2

Hovering flight .........................................................................2-14

forward flight..............................................................9-9

performance ................................................................7-4

sideward flight ............................................................9-9

taxi ............................................................................9-10

turn .............................................................................9-7

Hub.................................................................................2-9

Humidity ........................................................................7-2

Hydraulics ....................................................................4-16

I

Illusions Leading to Landing Errors ............................12-9

Induced flow ......................................................... 2-8,2-22

downwash .................................................................2-11

In-Ground Effect ..........................................................2-12

Intermeshing rotors ................................................. 1-4,4-6

K

Kaman, Charles H. .........................................................1-2

L

Landing stuck left pedal........................................................11-17

stuck neutral or right pedal .....................................11-17

Leading edge ..................................................................2-8

Lift..................................................................................2-3

Loading Chart Method ...................................................6-4

Low-G Conditions and Mast Bumping ......................11-14

Low Reconnaissance ....................................................10-2

Low Rotor RPM and Rotor Stall ...............................11-15

LTE at Altitude ..........................................................11-21

M

Main Rotor disk interference (285–315°) ..................................11-20

system .........................................................................4-2

transmission ..............................................................4-11

• Maximum Performance Takeoff ..................................10-2
• Medium and High Frequency Vibrations ..................11-23
• Minimum Equipment Lists (MELs) and Operations with

Inoperative Equipment ...................................................8-2

Moisture .........................................................................7-2

Multi-Engine Emergency Operations ........................11-23

Myopia .........................................................................12-2

N

Newton’s Third Law of Motion .....................................2-5

Night Flight ..................................................................12-7

Night Myopia ...............................................................12-2

Night Traffic Patterns ..................................................12-8

Night Vision .................................................................12-4

Normal Approach to a Hover .......................................9-19

Normal Approach to the Surface .................................9-20

Normal Descent .............................................................9-5

• Normal Takeoff From a Hover ....................................9-12
• Normal Takeoff From the Surface ...............................9-12
• Normal Takeoffs and Landings .................................11-13

NOTAR® .......................................................................1-3

O

Obstruction Detection ..................................................12-5

Oculogravic illusion ...................................................13-13

Out of Ground Effect ...................................................2-12

P

Passengers ......................................................................8-4

PAVE Checklist ...........................................................13-6

Pendular Action ...........................................................2-15

Performance Charts ........................................................7-2

climb performance......................................................7-6

Pilot at the Flight Controls .............................................8-6

Pinnacle and Ridgeline Operations ............................10-11

Pitch Control ................................................................2-17

Powered Flight .............................................................2-14

Power Failure in a Hover .............................................11-8

Practice Autorotation With A Power Recovery ...........11-7

Preflight................................................................. 8-2,12-7

Presbyopia ....................................................................12-2

• R
• Ramp Attendants and Aircraft Servicing Personnel ......8-4
• Rapid Deceleration or Quick Stop ...............................10-4

Rearward Flight ...........................................................2-24

Reciprocating Engines .................................................4-14

Reconnaissance Procedures .........................................10-2

Recovery From Low Rotor RPM...............................11-16

Recovery Technique ..................................................11-21

Relative-Motion Illusion ..............................................12-6

Relative wind .......................................................... 2-8,2-9

Resultant relative wind ........................................... 2-8,2-9

Retreating Blade...........................................................2-20

Retreating Blade Stall ................................................11-10

Reversible Perspective Illusion ....................................12-6

Rigid Rotor System ........................................................4-3

Rods .............................................................................12-4

Root ................................................................................2-9

Rotational Relative Wind (Tip Path Plane) ...................2-9

Rotorcraft .......................................................................1-1

Rotorcraft Flight Manual (RFM) ...................................5-1

aircraft and systems description .................................5-5

emergency procedures ................................................5-4

general information ....................................................5-2

handling, servicing, and maintenance ........................5-5

normal procedures ......................................................5-5

operating limitations ...................................................5-2

airspeed ...................................................................5-2

altitude ....................................................................5-3

flight ........................................................................5-4

placards ...................................................................5-4

powerplant ..............................................................5-3

rotor.........................................................................5-3

weight and loading distribution ..............................5-4

performance ................................................................5-5

preliminary pages .......................................................5-2

safety and operational tips ..........................................5-6

supplements ................................................................5-6

weight and balance .....................................................5-5

Rotor Safety Considerations ..........................................8-3

Rotor System..................................................................1-3

Running/Rolling Takeoff .............................................10-3

S

Shallow Approach and Running/Roll-On Landing......10-6

Sideward Flight ............................................................2-23

Sikorsky, Igor.................................................................1-2

Single-Engine Failure ................................................11-23

Slips................................................................................9-4

Slope Takeoff ...............................................................10-8

Slope Takeoffs and Landings.....................................11-13

Stability Augmentations Systems ................................4-17

Structural Design .........................................................4-12

Swash Plate Assembly ...................................................4-6

synchropter.....................................................................1-4

System Malfunctions .................................................11-16

T

Takeoff .......................................................................10-10

Tandem rotor........................................................... 1-3,4-6

Taxiing .........................................................................9-10

Taxi Technique ............................................................12-8

The Effect of Weight Versus Density Altitude ..............7-3

The Four Fundamentals .................................................9-2

Throttle...........................................................................1-6

Throttle Control .............................................................3-2

Thrust ...................................................................... 2-3,2-6

Tip ..................................................................................2-9

Traffic Patterns.............................................................9-17

Trailing edge ..................................................................2-8

Translating Tendency or Drift .....................................2-15

Translational Lift .........................................................2-21

Transmission System ...................................................4-10

Transverse Flow Effect ................................................2-23

Turbine .........................................................................4-10

Turbine Age ...................................................................1-2

Turbine Engines ...........................................................4-16

Turning Flight ..............................................................2-24

Turns ..............................................................................9-3

Twist ..............................................................................2-9

• U
• Unanticipated Yaw/Loss of Tail Rotor Effectiveness

(LTE)..........................................................................11-18

Use of Collective........................................................11-13

V

Venturi effect .................................................................2-4

Vertical Flight ..............................................................2-17

Vertical Takeoff to a Hover ...........................................9-6

VFR Flight into IMC .................................................11-24

Vision in Flight ............................................................12-2

Visual Acuity ...............................................................12-3

Visual Deficiencies ......................................................12-2

Vortex Ring State.........................................................11-9

Vuichard Recovery ....................................................11-10

W

Weathercock Stability (120-240°) .............................11-20

Weight .........................................................2-3,2-5,6-2,7-2

Weight and Balance Calculations ..................................6-4

Winds .............................................................................7-2