I have tried searching and researching all across the net and user manual, I'm getting nothing.
I can't get the O2 to turn on in my P-47. Before flight, I put on the mask, flip the switch to full O2 for the preflight check, and the blinker doesn't move, I have zero pressure in my tanks. I thought it might be a gauge issue so I took her up to FL200 and passed out, so now I know I'm not getting O2. Anyone know how to fill the tanks?