O P R S T Obstruction Detection ..................................................12-5 Oculogravic illusion...................................................13-13 Out of Ground Effect ...................................................2-12 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 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 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 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 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 I-3