Page 5 - PPL-H 2021_Neat
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5.6   Hover  ........................................................................    40

                       5.6.1   Hover ved specielle omstændigheder  ................................    40

                  5.7   Forlæns flyvning  ........................................................    42

                  5.8   Grundlæggende aspekter af vandret flyvning  .............                    43


                       5.8.1   Cyclic tilt af rotordisc  .........................................................    43

                       5.8.2   Rotorblade tiltet fremad  ....................................................    43

                       5.8.3   Usymmetrisk lift  ................................................................    44

                       5.8.4   Blow-Back ..........................................................................    47

                       5.8.5   Translational lift  ................................................................    48

                       5.8.6   Traverse Flow Effekt (inflow roll)  .......................................    49

                              5.8.6.1   Height-Velocity Diagram (dødmandskurve)  ..............................    49
                       5.8.7   Drej  ...................................................................................    51

                       5.8.8   Vindens effekt på IAS og Translational lift  .........................    53

                       5.8.9   Landingsflare (udfladning)  .................................................    55

                  5.9    Stabilitet og manøvrering ..........................................        56


                       5.9.1   Statisk stabilitet  .................................................................    56

                       5.9.2   Dynamisk stabilitet  ............................................................    56

                       5.9.3   Helikopterens akser og bevægelser  ...................................    57
                       5.9.4   Manøvrering  ......................................................................    58


                       5.9.5   Stabiliserende metoder ......................................................    58

                  5.10   Farlige flyvetilstande  ...............................................     61

                       5.10.1   Retreating Blade Stall  ......................................................    61

                       5.10.2   Settling with Power (Vortex Ring State)  ...........................    62

                       5.10.3    Dynamic / static rollover  .................................................    64

                       5.10.4    Ground Resonance  ..........................................................    64

                       5.10.5    Mast Bumping  ................................................................    66

                       5.10.6    Blade Stall  .......................................................................    67

                       5.10.7    Tail Striking  .....................................................................    68

                       5.10.8   Autorotation  ....................................................................    68

                              5.10.8.1   Autorotation trin for trin  ........................................................    72



             Henning Andersen, Midtjysk Flyveskole 2021, h.b.sunds@gmail.com                                                                        S. 5
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