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#4561301 - 11/01/17 02:36 PM Hunt for Red October
MolaKule Offline


Registered: 06/05/02
Posts: 19042
Loc: Iowegia - USA
Some Interesting fact about Red October.

Quote:

The so-called “caterpillar drive” worked with no moving
parts, allowing a nuclear missile-armed Soviet submarine to
approach the U.S. coast undetected. As the submarine captain
(played by Connery) said, “Once the world trembled at the
sound of our rockets … now they will tremble again—at the
sound of our silence."

MHD propulsion is not fictional: real-life prototypes include
the EMS-1, a 3.0-m submarine that achieved speeds of
0.4 m/s during tests in California in 1966,2 and the ST-500,
a 3.6-m boat that reached 0.6 m/s in Japan in 1979.3 The
world’s first and so far only full-sized MHD-propelled craft,
Yamato-1, carried 10 people at speeds of up to 15 km/h during
successful sea trials in Kobe, Japan, in 1992.

In Clancy’s novel, Red October’s propulsion system was not
magnetohydrodynamic but based on a more conventional
(but also unusually quiet) “pump-jet” system
employed in the
massive Typhoon-class Soviet submarines of the 1980s. Nevertheless,
there was intense real-world suspicion during this
period that the Soviets were developing MHD-driven attack
submarines. As late as 1990, military analysts were convinced
that strange “pods” mounted on the tails of new Soviet Victor
III-class submarines were MHD thrusters [“Evidence grows
the ‘pod’ is a superconductive drive,” Navy News and Undersea
Technol. 7 (11), 1–2 (March 19, 1990)]. Attempts to photograph
these pods caused a collision with a U.S. Navy ship, the U.S.S.
Drum, in 1981 [W. C. Reed, Red November: Inside the Secret
U.S.-Soviet Submarine War (William Morrow, 2010)].


Excerpts from:

The Hunt for Red October II:
A magnetohydrodynamic boat demonstration for
introductory physics

THE PHYSICS TEACHER, Vol. 55, PP. 460-466, November 2017


Edited by MolaKule (11/01/17 02:42 PM)

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#4561309 - 11/01/17 02:46 PM Re: Hunt for Red October [Re: MolaKule]
OneEyeJack Offline


Registered: 09/14/10
Posts: 7471
Loc: S California
If they're kind of heavy and slow could they be maid stationary and used to drive a train capsule in a tube?

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#4561321 - 11/01/17 03:05 PM Re: Hunt for Red October [Re: MolaKule]
28oz Offline


Registered: 04/20/17
Posts: 334
Loc: Utah, USA
Oh man, the memories. I actually did a report in the 8th grade (nerd alert!) on this magnetohydrodynamic propulsion system. However, since I referenced it's inclusion in Tom Clancy's book, my teacher marked the report down drastically because it was "fiction" and the report wasn't supposed to be. I even included other science-y journals as references, but it wasn't enough to convince her otherwise.
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#4561323 - 11/01/17 03:08 PM Re: Hunt for Red October [Re: MolaKule]
LoneRanger Offline


Registered: 07/02/07
Posts: 4044
Loc: Midwest USA
"Con, Sonar: Cavitating !!"
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#4561358 - 11/01/17 04:03 PM Re: Hunt for Red October [Re: MolaKule]
gman2304 Offline


Registered: 08/11/11
Posts: 3047
Loc: n.c.
Way over my head, but I can’t suppress the visual of Sean Connery saying.......”sound of our silence”! Sorry.

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#4561366 - 11/01/17 04:14 PM Re: Hunt for Red October [Re: MolaKule]
OneEyeJack Offline


Registered: 09/14/10
Posts: 7471
Loc: S California
A part that I really liked, working out a problem in real time when you're in the middle of it.


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#4561369 - 11/01/17 04:21 PM Re: Hunt for Red October [Re: MolaKule]
Recalculating Offline


Registered: 08/04/12
Posts: 448
Loc: New York
"one ping only"
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#4561409 - 11/01/17 05:19 PM Re: Hunt for Red October [Re: MolaKule]
DoubleWasp Online   content


Registered: 05/21/12
Posts: 5236
Loc: Fort Lauderdale, FL
Only problem is, MHD is neither silent, nor undetectable.
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#4561455 - 11/01/17 06:02 PM Re: Hunt for Red October [Re: MolaKule]
benjy Offline


Registered: 08/23/10
Posts: 865
Loc: pa
a great movie + one of many from the best 007 EVER!!

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#4561472 - 11/01/17 06:25 PM Re: Hunt for Red October [Re: MolaKule]
fdcg27 Offline


Registered: 09/25/09
Posts: 15682
Loc: OH
The Hunt for Red October was a really good novel and certainly the best written by its author.
Remember reading it in the eighties.
The movie sucked.
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#4561523 - 11/01/17 07:25 PM Re: Hunt for Red October [Re: OneEyeJack]
FlyNavyP3 Offline


Registered: 07/04/16
Posts: 1407
Loc: Jacksonville, FL
Originally Posted By: OneEyeJack
A part that I really liked, working out a problem in real time when you're in the middle of it.



I recently had the opportunity to track the USS Dallas during a mutual training evolution, I was the mission commander of the P-8 tracking the Dallas. It was impossible to resist the urge to say "Way to go Dallas" I also may have instructed my acoustic operator to give me "one ping and one ping only" on one of our active buoys. I always thought it would be fun to hunt that boat, glad I had the chance to before she is decommissioned.
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P-3C and P-8A Maritime Weapons and Tactics Instructor, Instructor Tactical Coordinator and Mission Commander

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#4561629 - 11/01/17 09:32 PM Re: Hunt for Red October [Re: MolaKule]
Ducked Offline


Registered: 10/25/12
Posts: 4325
Loc: Taiwan
Seen that boat in Kobe. Magneto hydro drive catamaran. Static shore exhibit now only unfortunately. Looks like a Star ship Enterprise shuttle, except its real, and a bit rustier.





Edited by Ducked (11/01/17 09:35 PM)

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#4561634 - 11/01/17 09:35 PM Re: Hunt for Red October [Re: MolaKule]
jaj Offline


Registered: 08/21/03
Posts: 1060
Loc: Vancouver, Canada
Then there was the European diesel-electric submarine and crew that a prominent navy rented for exercises in the early 2000's. They searched for the entire exercise period and they never found it.

I have it on good authority that nothing scares a surface mariner more than a report of a D-E submarine in the area.

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#4561698 - 11/01/17 11:29 PM Re: Hunt for Red October [Re: jaj]
Ducked Offline


Registered: 10/25/12
Posts: 4325
Loc: Taiwan
Originally Posted By: jaj
Then there was the European diesel-electric submarine and crew that a prominent navy rented for exercises in the early 2000's. They searched for the entire exercise period and they never found it.

I have it on good authority that nothing scares a surface mariner more than a report of a D-E submarine in the area.




Believe some of those are now (retro?) fitted with fuel cells which are quiet and give them much longer (weeks?) underwater endurance, though not of course as long as a nuke boat.

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#4561795 - 11/02/17 05:11 AM Re: Hunt for Red October [Re: MolaKule]
Shannow Online   content


Registered: 12/12/02
Posts: 39821
Loc: 'Stralia
Would love to see a commercial scale MHD coal combustor

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