Adjustable Tail Numbers

[gordie3640]

Can someone tell me why some models allow customized tail numbers but others don't?

[dave3cu]

The ability to change the visible tail number has to be built into the model. It is built into all default aircraft. On most add-on aircraft you cannot. Many are built to represent real registered aircraft, but in the end it's up to the author.

If you really want a different tail number, you could change them by editing the appropriate texture. You can of course change the reg. used by ATC, in the Details window when selecting the aircraft.