Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
Member Login

Site Notices
1/22/2020 12:12:56 PM
Posted: 11/22/2012 12:05:42 PM EST
[Last Edit: 11/22/2012 12:11:28 PM EST by Raclette]






In place of a propeller or paddle wheel, [the Yamato 1] uses jets of water produced by a magnetohydrodynamic (MHD) propulsion system.… Inside each thruster, the seawater flows into six identical tubes, arranged in a circle like a cluster of rocket engines. The ten inch diameter tubes are individually wrapped in saddle shaped superconducting magnetic coils made of niobium titanium alloy filaments packed into wires with copper cores and shells. Liquid helium cools the coils to –452.13°F, just a few degrees above absolute zero, keeping them in a superconducting state in which they have almost no resistance to electricity. Electricity flowing through the coils generates powerful magnetic fields within the thruster tubes. When an electric current is passed between a pair of electrodes inside each tube, seawater is forcefully ejected from the tubes, jetting the [craft] forward.



http://www.skewsme.com/mhd.html#axzz2CzVL2fnf
http://en.wikipedia.org/wiki/Yamato_1
http://www.7tune.com/mitsubishi-heavy-industries-yamato-1/


Coolest thing I have seen in a while...
Link Posted: 11/22/2012 12:09:04 PM EST
caterpiller drive
Link Posted: 11/22/2012 12:09:09 PM EST
Caterpillar!
Link Posted: 11/22/2012 12:09:11 PM EST
Caterpillar drive




Link Posted: 11/22/2012 12:09:50 PM EST
Magnets FTW
Link Posted: 11/22/2012 12:10:22 PM EST
dammit, beat by 7 & 2 seconds.
Link Posted: 11/22/2012 12:12:48 PM EST


Well, fuck.
Link Posted: 11/22/2012 12:14:52 PM EST
This thing could park a couple of hundred warheads off Washington and New York and no one would know anything about it till it was all over.
Link Posted: 11/22/2012 12:17:18 PM EST
Does not look evil enough.
Link Posted: 11/22/2012 12:20:15 PM EST
Japan does weird a lot but they do awesome quite a bit too
Link Posted: 11/22/2012 12:21:37 PM EST
Link Posted: 11/22/2012 12:23:26 PM EST
Link Posted: 11/22/2012 12:25:53 PM EST
There's only one Yamato I am interested in:

Link Posted: 11/22/2012 12:26:32 PM EST
Originally Posted By Ragin_Cajun:
Japan does weird a lot but they do awesome quite a bit too


This.

That thing is from 1990. I wonder what they have these days (assuming they continued with research)...

Originally Posted By Merrell:
http://www.youtube.com/watch?v=Emdzsz_XvfA


Link Posted: 11/22/2012 12:26:57 PM EST
Huh, magnets is actually the right answer for once!
Link Posted: 11/22/2012 12:40:35 PM EST
Looks like it ought to go a lot faster than 8 knots.
Link Posted: 11/22/2012 12:43:47 PM EST
The japs are indeed crafty folk, Give 'em six months, they'll figure out a way to have sex with the liquid helium magnets, AND make a coin operated version.
Link Posted: 11/22/2012 12:44:43 PM EST
You know, just the other day it seemed like I heard magma displacements.

Go figure.

Link Posted: 11/22/2012 1:01:14 PM EST
[Last Edit: 11/22/2012 1:01:38 PM EST by LowBeta]
Last time I heard that thing we do about 2 and a half Kts with a propulsion plant power about 3.5 megawatts. The big problem with these things, I seem to recall, is that very quickly the electric current applied to the sea water begins to cause hydrolysis and very quickly the energy that should go into moving the ship goes into making gas bubbles.

call me Debbie Downer.

Posted Via AR15.Com Mobile
Link Posted: 11/22/2012 1:04:28 PM EST
Originally Posted By LowBeta:
Last time I heard that thing we do about 2 and a half Kts with a propulsion plant power about 3.5 megawatts. The big problem with these things, I seem to recall, is that very quickly the electric current applied to the sea water begins to cause hydrolysis and very quickly the energy that should go into moving the ship goes into making gas bubbles.

call me Debbie Downer.

Posted Via AR15.Com Mobile


So you are saying we could just add syrup and turn this contraption into some sort of floating soda machine?


Link Posted: 11/22/2012 1:08:49 PM EST

Originally Posted By scrum:
There's only one Yamato I am interested in:

http://www.otal.umd.edu/~mgk/blog/yamato.jpg

Wave Motion Engine and Gun

It would be fun.
Link Posted: 11/22/2012 1:11:31 PM EST

Originally Posted By Merrell:
Caterpillar drive


http://i.ytimg.com/vi/iGfk_IU3Wlo/0.jpg


Exactly what I thought.
Link Posted: 11/22/2012 1:16:11 PM EST
They will lay off our largest city, and listen to our "rock and roll"...
Top Top