[roc-chat] Re: Interested in Sonic Boom Sound
- From: Mike Riss <rockt_dude@xxxxxxxxxxxxx>
- To: roc-chat@xxxxxxxxxxxxx
- Date: Thu, 14 Jun 2012 00:29:33 -0700 (PDT)
Richard,
I think I heard the same thing, and IIRC, I was standing in the safety zone at
the time. Seemed like it was towards the end of the motor burn. It sounded
pretty sharp to me. I was thinking it was that "liner getting expelled" that
usually gets thrown out as an explanation for that type of sound.
Mike
--- On Wed, 6/13/12, Richard Dierking <richard.dierking@xxxxxxxxx> wrote:
From: Richard Dierking <richard.dierking@xxxxxxxxx>
Subject: [roc-chat] Interested in Sonic Boom Sound
To: roc-chat@xxxxxxxxxxxxx
Date: Wednesday, June 13, 2012, 8:20 AM
During ROCstock after I was doing some maintenance on one of the back pads and
was walking away, a rocket was launched. It was about a 4" diameter, and had a
large enough motor to get it going fast. During the flight, I definitely heard
a "pop" but it didn't coincide with any event I saw on the rocket. I thought
that a sonic boom could only be heard if the cone created by the disturbance
passed by you. So, what could this have been? I was thinking perhaps a sound
generated by turbulence at the base of the rocket?
Anyway, this is the first time I've heard this kind of sound and I wonder if
someone has video that includes this "pop." Richard Dierking
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