This is a mod for the pby-5 and or the 5a varient, it works with both of the american versions but im not sure about the russian version because i dont know how to get the star in front of the name in windows so thats a shame.

As for the installation
Download the rar file(i suggest you get winrar to unpack it as it faster then windows)
Find the directory for the war thunder files(should have other folder with things like redist or compiled shaders in it)
Create a folder called "UserSkins"(must have caps in those places), if you already have a folder called userskins ignore this part
Copy the contents of the rar file into the user skins folder
Then go into war thunder find the plane and click it then click customizaton and then click user skins and click the skin with the wierd name.