Re: Traveling in a "B" with oxygen
I have never traveled with breathing oxygen bottles but have some limited experience with ship-board compressed gas bottles. First, the bottles should be restrained. Not sure of the size of your bottles but perhaps a small fire extinguisher mounting bracket would work. The primary concern is to protect the valve head at the top of the bottle. If the bottle should fall and snap the valve head off, it can turn into an unguided missile. If the bottles have a protective shipping cap, you should keep it in place when not in use. Second, because this is oxygen which can dramatically accelerate a fire, you want to keep the valve head clear with good air circulation around it so that any leakage gets dissipated. Don't wrap a blanket around to protect it because any leakage can saturate the blanket with oxygen creating a major fire hazard, the slightest spark or static discharge could ignite it.
Hope this helps!