Do UFO's break the sound barrier?

Originally posted by iori_komei

If you mean there are no craft that don't produce sonic booms, well currently there is research into that, and there are designs for next generation supersonic passenger planes that have produce a sonic boom that is a little less loud than an ordinary jet engine, which is pretty cool since sonic booms are one of the main reasons we don't have
a prevalence of super sonic passenger planes.

Like this one QSST "Quiet Supersonic Transport" www.saiqsst.com...

But why UFO's dont make a sonic boom, it probaby has to do with the zero-gravity field around the craft.

My highly unscientific and untechnical explanation would be that the common UFO is inside a bubble where air slides without friction around it. So there is nothing to create the sound.

There is a similar theory about it underwater, where we could have jet engine powered submarines travelling at like 5000mph if we could somehow create and uphold a bubble.

[edit on 20-5-2007 by merka]

Originally posted by biotic
or perphas they have the ability to manipulate time and space and just *poof* disapear out of our dimension

You are correct.

I remember watching a documentory about UFO's on one of our free to air stations here in australia years ago.

There was some in space footage from some spacecraft/shuttle orbiting earth. I remember it becuase when they were adverting the show the were saying "UFO star wars" becuase they had footage of two ufo's moving through space, and one shot a laser/beam weapon (what looked like, seriously it looked like a laser energy blast you'd see out of star wars or something) and this UFO shot at another but missed like a warning shot.

But they had another segment after it which they were watching a ufo from space. and it would move slow for a little while, But then it just jumped from one spot and reappeared at another. So they slowed it down a bit. What it actually did to get from point A to point D was it would flash out of existance at A then jump in and then jump out at B, then the same at C, then it was at point D. They had to slow it down to actually notice that it made these two extra quick jumps.

Quite fascinating.

There are any number of ways to nullify the air compression shock wave that results in the boom, but like most UFO propulsion problems, they require a lot of energy and the ability to finely manipulate it. Creating some kind of needle point at the front edge of the craft would "poke" through the air and force it to flow past without creating a shock wave. Or you could try reducing the air pressure by heating it up. Pinpoint focused microwave laser, maybe?

Wouldnt heating it up cause a sonic boom? I mean that's what lighting does...

A lot of good ideas have come up in this thread. The two which also came to my mind were the example of the O'hare UFO which left a hole in the cloud deck. The other was the idea about the bubble. But a bubble of what? My take is that it's a bubble in space itself. In star trek lingo they call it "subspace". I know what many of you are thinking right about now that space is nothing so how can you have a hole in nothing? The answer is that space is NOT nothing. This bubble in space could possibly dematerialize the air around the craft thereby removing any possibility for a shock wave to develope. This would also explain how the O'hare UFO left a hole in the cloud deck when it shot off.

[edit on 20-5-2007 by Latitude]

Bob Lazar claims to have worked with ET craft at S4, and the insight he provided is basically that the crafts manipulate time and space. How we perceive them with a camera isn't necessarily an accurate perception of what's really going on.

Already discussed here:
www.abovetopsecret.com...

Originally posted by SuicideVirus
There are any number of ways to nullify the air compression shock wave that results in the boom, but like most UFO propulsion problems, they require a lot of energy and the ability to finely manipulate it. Creating some kind of needle point at the front edge of the craft would "poke" through the air and force it to flow past without creating a shock wave. Or you could try reducing the air pressure by heating it up. Pinpoint focused microwave laser, maybe?

Putting a needle point on the front didn't work for the Bell X-3



They don't get any more 'needle pointed' than that ungainly beast, and it still created sonic booms on the rare occasions that it actually went supersonic.


As for heating the air around the craft, that would lower the air pressure somewhat, if you could heat the air far enough and fast enough...unfortunately, while that might reduce or eliminate the sonic boom from the aircraft / UFO / whatever-the-heck, you'd be replacing it with another shockwave from the air that's displaced by thermal effects (or, to use less technical terms, by a thunderclap).

Playing games with gravity probably won't do much to reduce the 'boom' either, since the sonic boom has almost nothing to do with mass, weight, or even inertia...it's a 'side effect' of a physical object (whether it's the .22 bullet from my rifle, or the Space Shuttle) moving through the atmosphere faster than the air in front of it can move aside.

If UFOs do avoid sonic booms, I'd put my money on doing it with shaping, since that's the easy way to do 90% of the job...it requires no moving parts, and no expended energy (beyond the energy already needed to fly). In short, it's the lazy way to do the job, and never, never, NEVER bet against the laziness of a good engineer, regardless of what planet he/she/it is from!

Shape, great point.
Form (structure) and function cannot be seperated
secret of the multiverse

Originally posted by Nick Nightstalker
Think about it; if you take a craft that has (for instance) a volume of roughly one cubic meter, and displace a cubic meter of air in front of it, and suddenly that air appears behind it, you've got a vacuum in front, sucking the craft in, as well as an abundance of air behind the craft, pushing it forward. I know it's far-fetched, but a propulsion system that somehow did this would explain both how these crafts move so quickly and maneuver in the near-impossible ways they do, as well as the lack of a sonic boom when they appear to move faster than the speed of sound.

Thankyou Nick for putting this to words. When you watch vids where
UFO's accelerate suddenly, it does indeed appear that they're being
pulled, instead of pushed. Almost as if the pilot thinks about where he
wants to be and an invisible conduit opens in front of the craft and it's
sucked away, just like a piece of dirt on the floor when the vacuum gets
close enough.

This is an amazing theory that would explain a whole lot in regards to
not only the lack of atmospheric disturbance, but the ability to travel
faster than light, if thought is somehow melded to technology that is
beyond our current understanding. Wow. Thanks Nick! -cwm

Originally posted by nidhogge
Bob Lazar claims to have worked with ET craft at S4, and the insight he provided is basically that the crafts manipulate time and space. How we perceive them with a camera isn't necessarily an accurate perception of what's really going on.

Of course, there is always that. They move through the air the way they do without a sonic boom because they're not really moving through the air at all. What we see or photograph is only a kind of "ghost" of a thing that doesn't exactly exist in our frame of reality to begin with. They could even be moving backwards or "sideways" through our spacetime in an unfamiliar dimension. How would a time-reversed shock wave act, when there the air is "uncompressed" to its normal, ambient state? A low rumble that reverse builds into a climax of -- silence?

As someone has already mentioned, "some" ufo's do indeed create a sonic boom.
However some clearly do not.

My guess is that they are not actually traveling "through" the atmosphere as we know it but, rather..they are displacing the atmosphere around themselves.
The apparent right angle & reverse turns of such craft would also be an indication of this.

Either way...the evidence shows that we humans still have a lot to learn about physics & light.

Interesting topic none-the-less.
I look forward to viewing more readers thought's on the subject.

Cheers all.

In the book " unconventional flying objects" by Paul Hill, who was a NASA rockets expert, says he thought that alien space craft use an antigravity field projected ahead of the craft to make the flow of air laminar and smooth to nullify the effect of turbulence and a shock which would also have the effect of eliminating any sonic boom. He actually makes some calculations, one for a cylindrical type and one for a spherical type. For the spherical one it must utilse the field more because its shape would cause a large turbulant wake. He also noted that in many ufo sightings there is a point of light in front of the craft, where the air is being ionised by the field. This is where the energy is being used the most to slow down the air in front of the craft.

Maybe they don't use the air for either propulsion or lift. They may have some way of travelling without disturbing the air around them and the technology the do use is silent. That way they could slide through our atmosphere without creating any sound waves.

Originally posted by Dr X
In the book " unconventional flying objects" by Paul Hill, who was a NASA rockets expert, says he thought that alien space craft use an antigravity field projected ahead of the craft to make the flow of air laminar and smooth to nullify the effect of turbulence and a shock which would also have the effect of eliminating any sonic boom. He actually makes some calculations, one for a cylindrical type and one for a spherical type. For the spherical one it must utilse the field more because its shape would cause a large turbulant wake. He also noted that in many ufo sightings there is a point of light in front of the craft, where the air is being ionised by the field. This is where the energy is being used the most to slow down the air in front of the craft.

Does anybody have a theoretical idea as to what it would take to "use an antigravity field projected ahead of the craft" or is this beyond human understanding at this time? If this is somewhat correct I wonder if the entire UFO can project this "antigravity field" or if there is a definite "front" of the ship that the field is generated through. The reason I wonder is because of the way some UFO's appear to change direction in the blink of an eye at high speed and I wondered how quickly the "field" could be pointed in a different direction. This may be a waste of brainpower because if there are actually crafts that can produce this "field" then I am sure they can easily solve this issue. Either way, thanks for the outstanding replies to this thread.

The answer is, beyond human understanding at this time. At least that's the public policy. Who knows what the reversed engineered black ops people really know. Like somebody already mentioned, Bob Lazar says they already have gravity drive, if you believe Bob Lazar.

@moserius

Currect scientific knowledge says that gravity is only an attractive force. So an antigravity effect is beyond what we "officially" know.
Its weird but antimatter has positive mass. In the book I was talking about earlier, the author thought that maybe antimatter could give a repulsive force to normal matter. But we now know that antimatter has positive mass and is attractive too. So it is still a mystery.

There may be other ways to control the air flow, prehaps with electric fields?

Just something I thought of.


Perhaps the craft itself is not going hyper/supersonic or actually pulling off the extreme
maneuvers that are described, but rather it is 'normal' in the sense that it does'nt use
some incredibly exotic propulsion system, but utilizes highly advanced optics systems.

That way the craft could be traveling at say .8 Mach and than activate it's optics systems,
which would simultaneously make the craft all but completely invisible while projecting
a holographic picture far ahead, that way it would make it seem like the craft was
capable of more than it really is.


As to why such a system would exist, well it's an incredibly great idea for stealth,
and stealth is generally a good thing to have.

My highly unscientific opinion is that they don't and it has to do with the physics by which they move.

It has been reported that underwater, ETs do not create current disturbances either, and this seems to substantiate this idea.