Page 669 - PPL-engelsk 2025
P. 669
Aircraft general knowledge
8.3.5.3 Hydraulic brakes .................................................................................. 690
8.3.6 The aircraft’s axes and primary control surfaces………. ........................... 690
8.3.6.1 Longitudinal axis and ailerons.............................................................. 691
8.3.6.2 Normal axis and rudder ....................................................................... 691
8.3.6.3 Lateral axis and elevator ...................................................................... 691
8.3.6.4 Aircraft control. .................................................................................... 691
8.3.7 Control and stabilization………. ................................................................ 693
8.3.7.1 Trim tabs ............................................................................................. 693
8.3.7.2 Static and dynamic balancing .............................................................. 694
8.3.7.3 Flaps……… ............................................................................................. 694
8.3.7.4 Slots………. ............................................................................................ 695
8.3.7.5 Slats……….............................................................................................. 696
8.4 Fuselage loading (stress) ............................................................................. 697
8.4.1 POH and aircraft’s limitations .................................................................. 697
8.4.1.1 G-impact .............................................................................................. 698
8.4.1.2 Max takeoff weight and max operating speeds .................................. 698
8.4.1.3 Limit load factor and breaking load factor .......................................... 699
8.4.1.4 Air speed indicator (ASI) / speedometers ............................................ 699
8.4.1.5 Load on parked aircraft ........................................................................ 700
8.5 Aviation fuel ................................................................................................. 701
8.5.1 Aviation gasoline ...................................................................................... 701
8.5.1.1 Types of gasoline ................................................................................. 701
8.5.1.2 Aviation gasoline vs. auto gasoline ...................................................... 702
8.5.1.3 Non-usable vs. non-drainable fuel ....................................................... 702
8.5.2 Fuel tanks ................................................................................................. 703
8.5.2.1 Gravity fed system ............................................................................... 704
8.5.2.2 Integral tank ......................................................................................... 704
8.5.2.3 Drains and condensation ..................................................................... 704
8.5.2.4 Sign… ….. ............................................................................................. 705
8.5.2.5 Tank gauges ......................................................................................... 705
8.5.2.6 Fuel tank cabs and vents ...................................................................... 705
8.5.3 Fuel systems ............................................................................................. 706
Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 669
