Page 437 - PPL(A) / LAPL(A) / UL - 9 fag 2026

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5.7.2 Stabilitetsgrader ..................................................................................... 483

5.7.3 Længdestabilitet ..................................................................................... 484

5.7.3.1 Design for længdestabilitet ................................................................. 485
5.7.4 Tværstabilitet ......................................................................................... 486

5.7.5 Kursstabilitet – stabilitet omkring højaksen ........................................... 487

5.7.5.1 Lateralcenter (Lc) ................................................................................ 488

5.7.5.2 Styrtspiral ............................................................................................ 489
5.7.6 Rorafbalancering .................................................................................... 490

5.7.6.1 Faste trim-klapper ............................................................................... 490

5.7.6.2 Aerodynamisk afbalancering............................................................... 490
5.7.6.3 Servoklap ............................................................................................. 491

5.7.6.4 Anti servoklap ..................................................................................... 491

5.7.6.5 Justerbar trimklap ............................................................................... 492
5.7.6.6 Statisk afbalancering ........................................................................... 492

5.7.7 Aeroelasticitet ........................................................................................ 493

5.8 Begrænsninger ............................................................................................ 494

5.8.1 Fartmålerens begrænsninger ................................................................. 494

5.8.1.1 Maksimal manøvrehastighed .............................................................. 495
5.8.2 Lastfaktoren ............................................................................................ 496

5.8.2.1 Grænsefaktor og brudlastfaktor ......................................................... 497

5.8.2.2 Sammenhæng lastfaktor og G-kræfter ............................................... 498
5.9 Propellens indflydelse på flyets manøvrering ............................................. 500

5.9.1 Propelslipstrøm ...................................................................................... 500
5.9.2 P-faktor ................................................................................................... 500

5.9.3 Gyroskopvirkning .................................................................................... 501

5.9.4 Torque .................................................................................................... 501

5.10 Flyvningens faser ......................................................................................... 502

5.10.1 Start .................................................................................................................. 503

5.10.1.1 Banens beskaffenhed ........................................................................ 504
5.10.1.2 Vindens betydning for startafløbet ................................................... 506

5.10.1.3 Tæthedshøjde .................................................................................. 506

5.10.1.4 Præstationstabeller .......................................................................... 506

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