Hello,

1.x and 2.x was totally clear, but 3.x is a bit confusing for me.
First i cant read all 3 book, after 3.1 try to read 3.2 and its said i have to do the pratical work first.
Second i dont know witch parts, the pictures shown main and tail rotors from choppers, but the help button reads for 3.1 rearside and mainrotor of aircrafts, for 3.2 engine and tailrotor of aircrafts and for 3.3 engine from choppers.

Can you help me?

Find what the image shows for 3.1.

Ok, thank you

Yes, you need main and rear rotors for 3.1 for choppers. 3.2 is avionics and plane engines, and 3.3 is heli engines

Thats an anwser, thanks Thomas.

No problem, feel free to ask any questions and Ill do my best to answer.