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P. 673
Aircraft general knowledge
8.9.7.2 The principle of the ignition system .................................................. 748
8.9.7.3 Impulse coubling .............................................................................. 749
8.9.7.4 Fouled spark plugs and other faults .................................................. 750
8.9.7.5 Testing the magnetos. ...................................................................... 750
8.9.7.6 Hand propping the aircraft ............................................................... 751
8.9.7.7 Stopping the engine ......................................................................... 752
8.10 Other engine types ................................................................................. 752
8.10.1 Diesel engine ......................................................................................... 752
8.10.1.1 FADEC-system. ............................................................................... 753
8.10.1.2 Engine cooling ................................................................................ 753
8.10.1.3 Diesel engine fuel ........................................................................... 753
8.10.2 Diesel engine vs gasoline engine............................................................ 754
8.10.3 Turbocharged engine ............................................................................ 754
8.11 Propeller .................................................................................................. 755
8.11.1 How propeller works ............................................................................. 756
8.11.1.1 Climb propeller and cruise propeller ............................................... 756
8.11.1.2 Pitch / blade angle .......................................................................... 756
8.11.1.3 Reversing ....................................................................................... 757
8.11.2 Propeller efficiency ................................................................................ 757
8.11.2.1 Constant speed propeller ............................................................... 759
8.12 Flight instruments ................................................................................... 762
8.12.1 Instrument panel ................................................................................... 762
8.12.2 Engine instruments ............................................................................... 763
8.12.2.1 Tachometer and hour meter .......................................................... 763
8.12.2.2 Fuel gauge ...................................................................................... 763
8.12.2.3 Oil pressure and temperature......................................................... 764
8.12.2.4 Fuel pressure gauge ....................................................................... 764
8.12.2.5 EGT……. ......................................................................................... 764
8.12.2.6 Fuel Flow meter ............................................................................. 765
8.12.2.7 CHT……. ......................................................................................... 765
8.12.3 Other instruments ................................................................................. 766
8.12.3.1 Vacuum gauge ................................................................................ 766
Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© marts 2026 673
