Vectors, air traffic control game

Hello friends.

I’m going out off my depth again,…

Basically I’m trying to rip off an air traffic control game (couple on the net), where you can change the aircrafts heading, speed, altitude etc.

At the moment I have no issues changing those values listed and seeing the results on the screen. However I would like to start getting into the aircraft landing, now for this I would like the aircraft to follow a standard ils approach (basically an imaginary line that shoots out from the start of a runway)

SO really what I want to work out is how to get a movieclip to head towards a line at a maximum 45 degree angle, and upon reaching the line, turn and go along it.

I tried following tonyPa’s tutorials on vectors, but possibly due to the slight language barrier and becasue its written in AS2 I couldn’t get my head around it.

Any help is much appreciated.