No. The plane was witnessed by Roosevelt Roberts as it came from around the impact area towards the South Parking Lot. It is funny that you mention the noise, since another possible flyover witness (Roseborough) reports hearing a "lion's roar" above his head and seeing the plane fly away over the south parking lot, corroborating Roberts. We do not know whether anyone inside the Pentagon heard the plane, however, since the plane flew over perhaps only two wedges of the Pentagon in 1-2 seconds, with the sound of the explosion, sirens, and paniced screams any noise from the decoy jet could have gone unnoticed. So, despite your assertion otherwise, you cannot know if anyone heard the jet from inside the Pentagon (not unusual given the circumstances), but witnesses outside most certainly did hear and see the plane.
There is absolutely nothing of substance in this response. Roseborough reports hearing a "lion's roar" BEFORE the impact, not after. He specifically mentions this.
I got out into the parking lot, just walking along, and all of a sudden, I hear what I would describe as a 'lion's roar' above my head. It caught my attention, and as I looked up, I heard another roar and I saw this airplane flying low. I thought, Oh, my God, this thing is really low.I thought it was going to crash onto the highway. Just as I thought that, I saw a fireball come from over the Pentagon.
The doppler effect wasn't even in the "red" when the explosion occured, making it impossible to miss.
We do not know whether anyone inside the Pentagon heard the plane, however, since the plane flew over perhaps only two wedges of the Pentagon in 1-2 seconds, with the sound of the explosion, sirens, and paniced screams any noise from the decoy jet could have gone unnoticed.
No. Again, this violates all laws of psychophysics. The inverse-square law, Weber's law. As the distance descreases, the intensity increases. Witnesses would hear 170+ dB airplane, passing over them as it flew over. There's no way around it.
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