Note: As of Sim Update 12, the H-4 has been updated to include a very similar fix to this. As such, this addon isn't really required anymore, and, as of now, I suggest removing it to ensure that any current or future updates to the aircraft work correctly in your game.
This addon simply enables the use of strings in the localization files, allowing the text-to-speech ATC and pilots to refer to the H-4 as a "Hughes Hercules".
As of now, this is all that the addon changes, even though the ICAO type designator it has been given by default is much too long to be a real one.
Extract the "OboeShoes_H4Fix" folder into your community folder to install.