OK i've done all you said but i can't build it.

1.what is with the:

; ******* Building Type List *******
This lists all the buildings types in the game. Each of these types will have a specific section in this file that gives the particulars about that building type.

Do I need to make an entrie here for NAAIRC? If yes, where???

2. What does this line means UIName= ???
What is the function of it.

3.What's with the icon? NAAIRC should use my new icon (heli2icon)instead of normel heliicon Like GAAIRC use.
I've add this icon in cameomd.mix. Does the system understand the new icon? Or do i have to replace another icon for example the unused yconicon?