Lol, I thought it was a mod for swimming underwater.
That would be oxygen mod...
Yeah, you can't even control the hang glider. It's just outta gas. Normally it has no forward power, maybe that's part of the problem?
This mod doesn't measure forward power, it measures the distanced moved every 500 milliseconds. That wouldn't be the problem.
Found the problem.
Because of the way Skis and HangGliders are mounted to the player, it by default has no gas. There is a simple fix to this.