For the rest of you, I'm fully aware that the photo is of the space shuttle, and yes, rockets are fueled with an oxidiser and a propellant. It's the suggestion that the engines may be used in a passenger craft that inspired my post. If you are happy paying for a trip on a flying bomb put together by the lowest bidder though, fill ya boots!
Oddly enough the passenger aircraft engine design (SCIMITAR) doesn't need to carry any oxidiser as it remains within the atmosphere and below mach 5 so it can scoop up what it needs. The same precooling system is used to ensure that that incoming air doesn't melt the engine and is in a usable state for combustion.
https://spiral.imperial.ac.uk:8443/b...ar_5_08_03.pdf