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Shuttle Endeavour’s sonic boom heard across O.C.
OCregister - ScienceDude ^ | November 30th, 2008 | Gary Robbins

Posted on 11/30/2008 10:45:31 PM PST by JohnJeykis

More than 150 readers have contacted us to say they heard the twin sonic boom produced by the space shuttle Endeavour moments before it made a perfect landing at Edwards Air Force Base in the Mojave Desert. We’re hearing from people everywhere from Rancho Santa Margarita to Irvine to Fullerton to Chino to Panorama City, Palmdale, Burbank and Ventura.

(Excerpt) Read more at sciencedude.freedomblogging.com ...


TOPICS: Local News
KEYWORDS: boom; edwardsafb; nasa; shuttle; shuttleendeavour; sonic; space; spaceshuttle

1 posted on 11/30/2008 10:45:32 PM PST by JohnJeykis
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To: JohnJeykis

I didn’t hear it.


2 posted on 11/30/2008 10:52:07 PM PST by Chubby
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To: JohnJeykis
It was a mighty fine house-shaking double-boom here in Camarillo. We were expecting it while watching fuzzy televised real-time images of the Shuttle approach. We wished we could have made the trip to Edwards to see the landing but there wasn't enough advance notice.

It was a skyward double-header today with the lovely conjunction of Venus, Jupiter and the crescent moon just after sunset. What a gorgeous display, with no clouds to mar it here!

3 posted on 11/30/2008 10:55:25 PM PST by Bernard Marx
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To: Bernard Marx

I sure wish we could have made the trip to Palmdale as well. We’re just 40 mins away, and mid afternoon landing, was the perfect time if only we gotten more advance warning.
It was a loud boom, at first I thought, earthquake, no, explosion, perhaps, it scared the heck out of me since I had no idea the shuttle would be landing out here.


4 posted on 11/30/2008 11:02:48 PM PST by psjones (u)
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To: Bernard Marx

That double boom is a very unique sound. I was in Florida a couple of years back at one of the theme parks when the shuttle announced her return. Most of the people didn’t know what it was but the few of who did gave a little round of applause for her safe return.


5 posted on 11/30/2008 11:06:03 PM PST by repubpub
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To: Bernard Marx

We were up near Santa Barbara for the weekend and the windows got to rattling.

And yeah, it was a lovely, glowing sunset, with the three celestial bodies shining so clear and brite in the dusky sky. Made us all feel Christmas-y.


6 posted on 11/30/2008 11:14:59 PM PST by justkate
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To: JohnJeykis

I wondered what that was...


7 posted on 11/30/2008 11:20:13 PM PST by karnage
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To: JohnJeykis
Shuttle Endeavour's sonic boom heard across O.C.

Don't call it that. :)

8 posted on 11/30/2008 11:20:33 PM PST by xjcsa (And these three remain: change, hope and government. But the greatest of these is government.)
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To: JohnJeykis

I watched the Shuttle land at Edwards in November 1985, the next launch was the ill fated Challenger. The double booms were impressive as was the landing.


9 posted on 11/30/2008 11:33:13 PM PST by HerrBlucher (We will "Barry" you -- Nikita Kruschev)
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To: HerrBlucher

Edjucate the dummies on this... Why two sonic booms??


10 posted on 11/30/2008 11:36:22 PM PST by sit-rep
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To: sit-rep
One from the front of the vehicle and another one from the ending wing structure. Sonic booms often go: "Bang bang".

It is a sign or your age, because as a kid in the SFV, we had them all the time, Bang bang.

The landing was "picture perfect" and welcomed.

Here's a little bit of the science.


11 posted on 12/01/2008 12:54:55 AM PST by jws3sticks (Hillary can take a very long walk on a very short pier, anytim Pute, and the sooner the better!)
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To: karnage

The muffler probably fell off.


12 posted on 12/01/2008 3:32:51 AM PST by Carl LaFong (I'm Sarah Palin)
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To: JohnJeykis

Bam-bam.... Los Feliz


13 posted on 12/01/2008 5:41:15 AM PST by onedoug
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To: JohnJeykis

Boom-boom in Glendale, it caused the dogs in the kennel next door to go nuts.

I was in Tarzana last time the Shuttle landed at Edwards, and the booms set off car alarms in the neighborhood.


14 posted on 12/01/2008 12:49:10 PM PST by Tony in Hawaii (NUTS!)
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To: jws3sticks

Thanks for the reply... I grew up near an ANG base before the population in the area complained enough to get them to stop breaking the sound barrier over the lake... All I can remember is K-Boom... I slight preliminary K-... Do not recall two distinct Booms as discussed here.

Could it be the jets were so close it combined them?


15 posted on 12/01/2008 3:57:12 PM PST by sit-rep
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To: sit-rep
Thanks for the kind message.

I think the science is there. I think the diagram is what happens. It might change with wind, actual air speed and a bunch of other factors.

I always remember the double bang in the San Fernando Valley as a kid in the 50's and 60's.

Once the plane is faster than the "speed of sound", 1,100 feet per second, as I recall, you get the sonic booms.

Maybe someone has more science to add to this posting. I hope so.

16 posted on 12/02/2008 4:34:16 AM PST by jws3sticks (Hillary can take a very long walk on a very short pier, anytim Pute, and the sooner the better!)
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