Message posted by greatguess on February 15, 2017 at 17:25:24 PST:
my wife and i just discussed the noise and we both agree that from years of experience the sound was a "new" one. it wasn't a B1 or B2 - we know those sounds from experience. it was as loud as a B2 run but at a lower frequency - it was obviously a multi-engine beast as you can tell that from the harmonics they generate. we could always detect single engine runs on the B1 and B2 based on inside info.
In Reply to: Re: MAJOR Moonless night engine run at Plant 42 posted by greatguess on February 15, 2017 at 17:19:35 PST: