FSX Not responding?

I downloaded some airplanes vintage military airplanes.
Now im clicking on the airplanes to load them and then fsx doesent respond then shuts down.
It's done it like 5 times tried restarting my computer then it did it right when I changed airplanes.
Any help >:(
Now im clicking on the airplanes to load them and then fsx doesent respond then shuts down.
It's done it like 5 times tried restarting my computer then it did it right when I changed airplanes.
Any help >:(