Page 793 - PPL(A) / LAPL(A) / UL - 9 fag 2026

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9.1 Indledning………… ....................................................................................... 799

9.2 Jordens form og gradnet ........................................................................... 801

9.2.1 Længde- og breddegrader .................................................................... 801
9.2.1.1 Gradnettet ........................................................................................802

9.2.1.2 Breddeparalleller og breddegrader ..................................................802

9.2.1.3 Meridianer og længdegrader ............................................................802
9.2.1.4 Positionsangivelse .............................................................................803

9.2.1.5 Afstandsberegning ved hjælp af koordinater ...................................804
9.3 Tid……………………………. .............................................................................. 806

9.3.1 Central Europæisk tid (CET) .................................................................. 807

9.3.2 Datolinjen .............................................................................................. 807
9.3.2.1 Den internationale datolinje .............................................................807

9.3.2.2 Tidszone ............................................................................................808

9.3.3 UCT-tid /zulu-tid og lokal tid ................................................................. 808
9.3.4 Tid, hvor der må udføres VFR-flyvning ................................................. 809

9.3.4.1 Tusmørke og nat ................................................................................810

9.4 Flyvekort…………………… .............................................................................. 812

9.4.1 Korttegning ........................................................................................... 812

9.4.1.1 Krav til kort .......................................................................................813
9.4.1.2 Kort - projektionsmetoder ................................................................814

9.4.1.3 Lamberts konforme koniske projektion ...........................................814

9.4.1.4 Mercatorprojektionen ......................................................................815
9.4.1.5 Gnomonisk projektion ......................................................................816

9.4.2 Storcirkler og kompaslinjer ................................................................... 817

9.4.2.1 Storcirkler .........................................................................................817
9.4.2.2 Lillecirkler ..........................................................................................818

9.4.2.3 Kompaslinjer .....................................................................................818

9.4.3 ICAO-kortet ........................................................................................... 818

9.4.3.1 Meridianer og breddeparalleller ......................................................820

Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2026 793