This mod makes the old civilian bus have wings and can fly reasonably well.  It is very fun to mess around with.  There is a normal and ludicrous mode.  Ludicrous basically makes it harder to take off but fast as lightning.  Ludicrous can also not gain altitude, and trust me, that's a good thing.  Ludicrous is also very glitchy.

There's an awesome tutorial made by Protato on how to install mods, you can visit it by clicking this link:

Updated Folders & Install Help By Protato

1.0.1 Fixed the mod not working because of me being stupid

1.0.0 Initial Release