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Flyveprincipper
5.7.2 Stabilitetsgrader ..................................................................................... 52
5.7.3 Længdestabilitet ..................................................................................... 53
5.7.3.1 Design for længdestabilitet ................................................................. 54
5.7.4 Tværstabilitet ......................................................................................... 55
5.7.5 Kursstabilitet – stabilitet omkring højaksen ........................................... 56
5.7.5.1 Lateralcenter (Lc) ................................................................................ 57
5.7.5.2 Styrtspiral ............................................................................................ 58
5.7.6 Rorafbalancering .................................................................................... 59
5.7.6.1 Faste trim-klapper ............................................................................... 59
5.7.6.2 Aerodynamisk afbalancering............................................................... 59
5.7.6.3 Servoklap ............................................................................................. 60
5.7.6.4 Anti servoklap ..................................................................................... 60
5.7.6.5 Justerbar trimklap ............................................................................... 61
5.7.6.6 Statisk afbalancering ........................................................................... 61
5.7.7 Aeroelasticitet ........................................................................................ 62
5.8 Begrænsninger ............................................................................................ 63
5.8.1 Fartmålerens begrænsninger ................................................................. 63
5.8.1.1 Maksimal manøvrehastighed .............................................................. 64
5.8.2 Lastfaktoren ............................................................................................ 65
5.8.2.1 Grænsefaktor og brudlastfaktor ......................................................... 66
5.8.2.2 Sammenhæng lastfaktor og G-kræfter ............................................... 67
5.9 Propellens indflydelse på flyets manøvrering ............................................. 69
5.9.1 Propelslipstrøm ...................................................................................... 69
5.9.2 P-faktor ................................................................................................... 69
5.9.3 Gyroskopvirkning .................................................................................... 70
5.9.4 Torque .................................................................................................... 70
5.10 Flyvningens faser ......................................................................................... 71
5.10.1 Start .................................................................................................................. 72
5.10.1.1 Banens beskaffenhed ........................................................................ 73
5.10.1.2 Vindens betydning for startafløbet ................................................... 75
5.10.1.3 Tæthedshøjde .................................................................................. 75
5.10.1.4 Præstationstabeller .......................................................................... 75
Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 6
