Monday, May 19, 2014
Damn, that was loud!
Several minutes ago a military-looking plane passed overhead, very close to sonic speed. Not quite a sharp boom, but an amazingly loud and long thunder. Could hear it for 10 minutes as it flew presumably toward Fairchild. Conveniently, a normal airliner flew in another direction for comparison. I'd say the fighter jet was 100 dB for the first few minutes, and the normal airliner was 40 dB.
Bit later: Well, no, it couldn't have been in the air 10 minutes if it was heading for Fairchild. Fairchild is 10 miles from here, so 10 minutes of flight to reach Fairchild would be 60 mph. Car speed, not sonic speed. Even if I overestimated the 10 minutes... if I was only hearing it for 3 minutes ... any sort of jet aircraft would go well beyond Fairchild in 3 minutes.
¶ 5:10 PM 
