144th fighter wing at ANG in cen-cal, just had an uncharacteristically LOUD fighter take off to the S/E in a hurry. Often it's just F15's doing touch n go practice. This did not sound like an F15 at all. Have heard and seen them for years out this way. Couldn't identify silhouette as it was hauling ass directly away from my vantage point. This was at 8:50 Pacific time, any PLANEFAGS on to elaborate on this? Haven't seen odd activity here since just after the 911days back when.