I thought that the Hindenburg was more about the materials the airship skin was made of than the Hydrogen itself. If the skin hadn't caught fire, the hydrogen w

I thought that the Hindenburg was more about the materials the airship skin was made of than the Hydrogen itself. If the skin hadn't caught fire, the hydrogen wouldn't have. Also the fuel tanks caught fire, and they could have been better protected. Normally the hydrogen can only catch fire if it leaks out and there is an ignition source near the leak. Even if this happens, if the skin is flame retardant, the hole probably won't grow very fast. You will lose buoyancy, but you'll probably have time to make an emergency soft-ish landing. Helium wouldn't really make any difference because it can leak out and cause loss of buoyancy just as easily.