I am in central Bucks county and earlier this afternoon I had about 5 (F-15's?) fly over one by one going North to South. They were so loud!

From my front porch I typically see planes coming out of Philly over the same flight path all the time- every few minutes or so. I just went outside for a cig after seeing this thread and didnt see anything coming north at all- dont hear any jets, nor do I see anything that would normally be departing from Philly...