Page 791 - PPL-2025-9fag

P. 791

Navigation

9.4.3.2 Information på ICAO-kortet ..............................................................818

9.4.3.3 Målestoksforhold og skalaangivelse .................................................820

9.4.3.4 Højdeangivelse på kortet ..................................................................821
9.5 Retningsbeskrivelse .............................................................................. 824

9.5.1 Referenceretning .................................................................................. 824

9.5.1.1 Referencelinjen .................................................................................824

9.5.2 Geografisk nord/sand nord og magnetisk nord .................................... 825

9.5.2.1 Geografisk nord / sand nord (TN) .....................................................825
9.5.2.2 Magnetisk nord .................................................................................825

9.5.3 Jordens magnetfelt ............................................................................... 826

9.5.3.1 Inklination .........................................................................................826
9.5.4 Variation / misvisning / deklination ...................................................... 828

9.5.4.1 Isogoner ............................................................................................830

9.5.4.2 Variation på ICAO-kort ......................................................................830
9.5.4.3 Agonic-line ........................................................................................831

9.6 Magnetismens indflydelse på flyet ........................................................... 831

9.6.1 Deviation og kompasnord ..................................................................... 831

9.6.1.1 Kompasnord (CN) ..............................................................................832

9.6.1.2 Deviation ...........................................................................................832
9.6.1.3 Deviationstabel .................................................................................832

9.6.1.4 Fejlvisning på magnetkompasset ......................................................833

9.6.1.5 Brug af magnetkompas og kursgyro i praksis ...................................833
9.6.2 Overblik – det hele samlet .................................................................... 834

9.6.3 Måling af ruter på kortet ...................................................................... 834

9.6.3.1 True Track (TT) ..................................................................................834

9.6.3.2 Distance ............................................................................................835
9.6.3.3 Samlet overblik - tabel ......................................................................837

9.6.3.4 ”Kan Døde Mus Virke Triste” ............................................................837
9.6.3.5 Heading og track ...............................................................................839

9.6.3.6 Hastighed Knob (kt) ..........................................................................840

9.7 Flyvning i vind…………... .............................................................................. 840

9.7.1 Vindtrekanten ....................................................................................... 840

9.7.1.1 Heading .............................................................................................842

786 787 788 789 790 791 792 793 794 795 796