Flight Controls

Question 1

what are the da42 flight controls

Answer 1

conventional ailerons

elevator

rudder systems

Question 2

how are primary flight controls operated

Answer 2

w. 2 control sticks and 2 ridder assemblies

push rods operate ailerons and elevator

flaps are a 3 position electric system

Question 3

Ailerons

Answer 3

4 hinges secured by roll pin

operated by control rods

lock nut needs to be checked so that it’s secured

Question 4

Flaps

Answer 4

2 section construction:
Outer:
- 6 hinges connects to wing 
inner:
- 4 hinges connects to inner wing 

failsafe

Question 5

flap settings

Answer 5

up, approach, down

0, 20, 42 degrees

Question 6

Elevator

Answer 6

steel push rods, trim tab at trailing edge

variable elevator stop

amber stick limit indication light

Question 7

how does the elevator trim work

Answer 7

two actuating levers:

left - long flexible cable thats adjustable

right - friction damper and prevents fluttering if trim cable fails

Question 8

rudder features

Answer 8

operated thru cables from rudder pedal assembly

mass balance weight bonded into leading edge near the top

Question 9

Rudder trim features

Answer 9

controlled with black trim wheel in center console

flexible cable - connects hand wheel to trim assy

2 operating rods - connect actuator assy to trim control horn