Quoted By:
useless flying Pringles can boondoggle; expensive to fly on, expensive to run, worse emissions than your boomer uncle after a heavy meal, the costs to develop the thing were absorbed and written-off by two countries' governments, put into service just before the 1970s oil crisis, and overall it wasn't even *pleasant*. basically it's no wonder there aren't supersonic jets criss-crossing the skies today.
