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Radar, it stands for Radio Detection and Ranging. That
will be ineffective in location of submarines.
Sonar,
it stands for Sound Navigation Ranging, an acoustic pulse in the water and
measures distances in terms of the time for the echo of the pulse to
return. That would be consider an active ping.
Passive is when instead of send out a pulse you turn on the second half
and receive other pulse form other vessels.
SOUND. Regardless of what coating is on it, will vibrate
through the water. Which will pulse through the water and can be detected
by any type of sonar. (a good example is a sound powered
phone)
I
apologize for the disagreement, but however, though I may not have very much
technical knowledge on the construction of a submarine, I do have military
knowledge, and though I have found it humorous to sit and listen to others about
such matters, I cannot help but point out their mistakes.
-Christopher
Even in WW2 the germans were experimenting with a
rubber coated submarine to defeat detection by radar.
Seems to me that we should not put all our trust
in sonar. All that has to be done is to bend that sonar wave around an object
and it will not bounce off it to return to the sonar man on board.
Hence....invisiblility.
We used similar technology in our stealth fighter
aircraft. Who would have thought years ago that a plane could defeat radar?
Kindest Regards,
Bill Akins.
----- Original Message -----
Sent: Monday, February 28, 2005 2:30
AM
Subject: RE: [PSUBS-MAILIST] Seahorse
news
Seems there is allot of dislike of the U.S. Navy.
However speaking off the record, it is very doubtful that any kind
of sub
surface vessel could be used effectively against a US Carrier, due
to
several reasons...most of which should be common sense...and some
which will
not be spoken.
Regardless of no prop to move the
vessel, if moving, it will be detected by
sonar, regardless of means or
propulsion, just like any other object in the
ocean.
-----Original Message-----
From: caribsub@coqui.net
[mailto:caribsub@coqui.net]
Sent: Monday, February 28, 2005 4:41
PM
To: personal_submersibles@psubs.org
Subject:
Re: [PSUBS-MAILIST] Seahorse news
Dubai is one of the safest
place in the world to live.
Just not forget that the vehicle mostly used
by terrorist is a car, toyota
or
mitsubishi. The last concern of
designers (car, plane , boat) and now
submarines is to the least criminal
use of their designs.
Criminals have endless possibilities from toaster
to people to plant bombs
so i
am not going refrain myself against
innovation because of criminals.
What is criminal is to not let ourself
prepared against such attacks, i
designed
a submarine specially to
prevent underwater attacks which has not received
any
interest from
the all powerfull US Navy. so i did my duty and i am not going
to
open
a bakery instead of selling subs because somebody, someday might use
a
sub
to blow up something.
however Al quaida reportedly already
has acquired mini subs, which i know
are
not from me.
My scubajet
is a breakthrough in scuba diving, it is a low profile
light
diver
propulsion vehicle in a ergonomic backpack including a BC
with no hoses or
consoles sticking out (HUB), you control propulsion with
a bite switch in
your
mouth piece which
makes it hands free.
optional is a small LCD mask screen to display info,
depth, speed, air
capacity.
There is no props, it is true that if used with a rebreather it
is difficult
to
detect, remember that most diver detectors are
passive, listening to noises
under the water, but rather ineffective
anyways in a port because of heavy
activity generating noises, active
sonars to detect divers are also rather
ineffective is such shallow
water.
Best regards
Herve
Mensaje citado por Akins <lakins1@tampabay.rr.com>:
>
Hmmm. I wonder how long it will take before some terrorist figures
out
that
> they could use one of these non propeller, non moving
parts rocket
propelled
> subs to counter the overwhelming
superiority of the U.S. navy.
>
> With no prop and stealthy, the
U.S. sub detectors might have a hard time
> picking them up. Being
built in Dubai it is pretty close to middle east
> hotspots.
Remember...the italians used similiar tactics with their two man
>
submarines in WW2 against the overwhelming
>
> superiority of
the British navy with modest sucesses. Think about it. One
of
>
these subs with a high explosive charge could sink a U.S.
aircraft
carrier.
> If U.S. intelligence is smart (and they
frequently are not) they would
> monitor who buys these subs in that
part of the
>
> troubled world..
>
> I guess time
will tell.
>
> Kindest Regards,
> Bill
Akins.
> ----- Original Message -----
>
From: caribsub@coqui.net
>
To: personal_submersibles@psubs.org
>
Sent: Saturday, February 26, 2005 4:22 AM
> Subject:
[PSUBS-MAILIST] Seahorse news
>
>
>
>
Hello everyone
> links of news releases on the Seahorse
Submarines moving to Dubai, UAE.
>
> http://www.gulfnews.com/Articles/BusinessNF.asp?ArticleID=152124
>
>
http://www.ameinfo.com/news/Detailed/53898.html
>
>
http://82.195.132.90/news/?ID=258
>
>
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