Page 672 - PPL-engelsk 2025
P. 672
Aircraft general knowledge
8.9.7.2 The principle of the ignition system .................................................... 746
8.9.7.3 Impulse coubling .................................................................................. 747
8.9.7.4 Fouled spark plugs and other faults .................................................... 748
8.9.7.5 Testing the magnetos. ......................................................................... 748
8.9.7.6 Hand propping the aircraft .................................................................. 749
8.9.7.7 Stopping the engine ............................................................................. 750
8.10 Other engine types ...................................................................................... 750
8.10.1 Diesel engine ............................................................................................ 750
8.10.1.1 FADEC-system. ................................................................................... 751
8.10.1.2 Engine cooling .................................................................................... 751
8.10.1.3 Diesel engine fuel............................................................................... 751
8.10.2 Diesel engine vs gasoline engine ............................................................. 752
8.10.3 Turbocharged engine ............................................................................... 752
8.11 Propeller ...................................................................................................... 753
8.11.1 How propeller works ................................................................................ 754
8.11.1.1 Climb propeller and cruise propeller ................................................. 754
8.11.1.2 Pitch / blade angle ............................................................................. 754
8.11.1.3 Reversing ............................................................................................ 755
8.11.2 Propeller efficiency .................................................................................. 755
8.11.2.1 Constant speed propeller .................................................................. 757
8.12 Flight instruments ........................................................................................ 760
8.12.1 Instrument panel...................................................................................... 760
8.12.2 Engine instruments .................................................................................. 761
8.12.2.1 Tachometer and hour meter ............................................................. 761
8.12.2.2 Fuel gauge .......................................................................................... 761
8.12.2.3 Oil pressure and temperature ........................................................... 762
8.12.2.4 Fuel pressure gauge ........................................................................... 762
8.12.2.5 EGT……. ............................................................................................. 762
8.12.2.6 Fuel Flow meter ................................................................................. 763
8.12.2.7 CHT……. ............................................................................................. 763
8.12.3 Other instruments .................................................................................... 764
8.12.3.1 Vacuum gauge ................................................................................... 764
Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 672
