Sounds a little odd. I'm not really an expert on this area or anything, but it sounds plausible that if they are able to cool the incoming air stream to that te

Sounds a little odd. I'm not really an expert on this area or anything, but it sounds plausible that if they are able to cool the incoming air stream to that temperature, then they might be able to make the speeds they're claiming. But I have to wonder, not only how they made a heat exchanger capable of cooling the incoming air that fast, but what are they doing with those megawatts of heat that they're taking out of the air? They claimed air temperatures coming out of the heat exchanger of -150, so where are they getting a cooling fluid colder than that to do exchange with?