Posted on 04/17/2023 7:11:18 PM PDT by BenLurkin
When Apollo astronauts blasted off ...they did so with more than 3.2 miles (5.1km) separating them from... onlooking crowds.
Nasa's measurements at the time captured the launch noise at 204 decibels... Even 1.5 miles (2.4km) away, the noise from a Saturn V launch was recorded as being 120 decibels – as loud as a rock concert, or a car horn at very close quarters.
Was Saturn V the loudest rocket ever launched? Probably not, if you use thrust as your guide. The 35MN (meganewtons) of force produced by Saturn V at launch is less than that produced by the Soviet Union's ill-fated N1 rocket (45MN)... Rockets as powerful as Saturn V were capable of causing damage to themselves just from the soundwaves generated from the noise of their own launch.
One solution: the fire trenches in the launch pad are filled with water which helps muffle some of the intense noise created when the rocket lifts off.
SLS is the new rocket used in the Artemis programme – the one planned to take humanity further into the Solar System than ever before. It became one of the most powerful rockets ever launched with 15% more thrust than Saturn V.
Brigham Young University and Rollins College in Florida studied recordings from the SLS during the Artemis 1 launch in November 2022 found... at 0.9 miles (1.5km) from the launchpad, the maximum noise level reached 136 decibels while at 3.2 miles (5.2km) it was 129 decibels.
SpaceX's Starship vehicle – intended for a proposed mission to Mars – will lift off on top of the company's Super Heavy booster. Super Heavy will, according to SpaceX, generate nearly 76MN of thrust, more than twice that of Saturn V. If you're planning on watching it take off, earplugs sound like a very good idea.
(Excerpt) Read more at bbc.com ...
Sorry your most honorable Lurkin, in the grand scheme of life, this is not important....
:^) Wow. They were big ‘uns. I’ve seen two of the three remaining Saturn V boosters — Huntsville and Canaveral — and would like to see the one at Houston sometime. What struck me was, WTH, the size of this thing, *on its side* (the one in Houston is upright I believe), and this actually left the ground, carrying the rest of the contraptions aloft.
That was fun.
Do you have a link to that old ‘80s game Thermo-Nuclear War? I’d like to give that a shot.
I once read that the crackle is because your brain can’t process the noise quickly enough.
I watched a shuttle launch from Cocoa Beach. Even miles away the crackle was strong.
On the morning of August 27, 1883, a volcanic eruption began. The sound of the eruption, as the lave split the Earth and shot out of the volcano, is estimated to have reached 310 decibels (dB). The eruption took place on the Indonesian island of Krakatoa, and it caused half the island to collapse.
Luke really, really loud 📢
It’s cool when space did a static fire the engine honk when shut off was 😎
No link
Yeah, it's hard to imagine something that large moving faster than a rifle bullet.
Darn! Guess I’ll have to settle for watching TV again tonight.
Wow…SpaceX’s Super Heavy will generate nearly 76MN of thrust, more than twice that of Saturn V. I had no idea! I figured nobody was exceeding the Saturn V.
We do not know how loud or experience the thrill of hearing a rocket blast off as the announcers like Walter Cronkite keep giving us their opinions on how great it is and talk over the sound as they think we are thrilled with their voice!
Shut up during launch!!
Ba Muy Ba??
How much global warming comes from a rocket launch?
Can someone do the volcano to rocket launch conversion?
If we could stop all the volcanos could we justify any more rocket launches?
Crackle because of mini sonic booms due to supersonic rocket exhaust wave fronts.
Whazzat? HAAAH???
I’ve never seen a launch in-person. Saw plenty, live on TV, as a kid. I’ve since wondered if the “crackle” (which I enjoyed, too) was an artifact of the audio-visual equipment usec to record and broadcast the events.
Yes....🤔🤨
“33” engines will buy a lot of thrust!
“As anyone who has seen a launch in person can attest, rocket engines create a “crackling” sound due to the shock waves created by the intense sound pressure levels, or SPLs.”
So basically small secondary sonic booms created by the sound pressure of the engines.
https://www.space.com/artemis-1-sls-moon-launch-sound-levels
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