Operation Of Flap

Question 1

Mechanical

Answer 1

Simple mechanical lever connected to the flaps via cables and rods
Usually 2 or 3 indents so flaps can be set to one of three positions
Rate of raising and lowering depends on how quickly you operate lever
Too quickly results in rapid flap movement which can cause effects which are difficult to control

Question 2

Electric

Answer 2

Flap indicator or gauge to show current flap position

Take care when using system with no predetermined positions, it’s easy to lower or raise by more than you intended