"HammerheadFistpunch" (hammerheadfistpunch)
08/26/2015 at 23:33 • Filed to: None
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"HammerheadFistpunch" (hammerheadfistpunch)
08/26/2015 at 23:33 • Filed to: None | 4
| 16 |
Doing a little wikipedia...ing and I discovered that the newest diesel electric from Russia, the Kilo Class, had a pump jet variant. The B-871; Basically a giant underwater jet ski. I wonder why they only did the one, or how well it worked...or what it was supposed to do better than a shrouded prop.
Amoore100
> HammerheadFistpunch
08/26/2015 at 23:39 |
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Almost as awesome as the Ekranoplan story but less elaborate...
I get a boner just looking at this thing...
Bman76 (no it doesn't need a WS6 hood) M. Arch
> HammerheadFistpunch
08/26/2015 at 23:45 |
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According to wikipedia she’s not alone:
Royal Navy Trafalgar class and Astute class
US Navy Seawolf class and Virginia class
French Navy Triomphant class and Barracuda class
Russian Navy Borei class.
Spaceball-Two
> HammerheadFistpunch
08/26/2015 at 23:49 |
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I’m guessing it was loud. Cavitation and maybe like a jet ski it had a rooster tail.
“One ping only Visili”
If only EssExTee could be so grossly incandescent
> Spaceball-Two
08/26/2015 at 23:59 |
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Torpedo in the water!
Birddog
> HammerheadFistpunch
08/27/2015 at 00:27 |
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I’m with Spaceball-Two. I bet it sounded like a Cuisinart under power.
Being a Russophile I find it interesting none the less.
norskracer98-ExploringTheOutback
> HammerheadFistpunch
08/27/2015 at 00:31 |
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Red October?
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HammerheadFistpunch
> Bman76 (no it doesn't need a WS6 hood) M. Arch
08/27/2015 at 00:33 |
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Well those (at least sea wolf and Virginia I know) are ducted props and not pump jets. Edit: looks like there is a lot of overlap between the two.
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Bman76 (no it doesn't need a WS6 hood) M. Arch
> HammerheadFistpunch
08/27/2015 at 00:37 |
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That’s kinda what I thought.
facw
> HammerheadFistpunch
08/27/2015 at 00:37 |
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On the topic of Russian subs, I stumbled upon this pic today:
No idea where they’re going (though India did lease three Akulas).
You can tell a Finn but you can't tell him much
> facw
08/27/2015 at 12:04 |
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Judging by the anchor out, they aren’t going anywhere. Now that I’ve got my reflexive snarky reply out of the way...
Any boat ship that can carry two submarines is impressive. If you GIS Dockwise you come up with some amazing photos. I had seen some where they are transporting oil rigs, but this is new to me. An aircraft carrier, more pics available in the Flickr feed .
Oct. 17, 2012; HMAS CANBERRA [III] arrives Port Phillip on BLUE MARLIN - LSIS Paul McCallum, RAN.
RallyWrench
> HammerheadFistpunch
08/27/2015 at 14:18 |
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“Quiet” and “Jet Drive” seem mutually incompatible, what the hell?
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HammerheadFistpunch
> RallyWrench
08/27/2015 at 14:21 |
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I can’t tell if it’s a centrifugal pump or an axial pump or what...hard to say
RamblinRover Luxury-Yacht
> RallyWrench
08/28/2015 at 12:15 |
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You never read Hunt For Red October? A ducted drive (or “caterpillar”) is the main innovation of the Red October over other Typhoons, other than a few extra missile tubes thrown in because it was going to be longer and what the hey. Putting the prop or prop equivalent somewhere where cavitation and prop tip noises get quashed had the effect of making it somewhat quieter, though in the book there were still unavoidable
thrum.... thrum...
pressure wave noises. Given Clancy’s manic level of research at that point, it was likely based on real tech.
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RallyWrench
> RamblinRover Luxury-Yacht
08/28/2015 at 12:39 |
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It’s one of my all time favorite books and movies, I just didn’t really associate it with a jet drive since they specifically call it a magneto-hydrodynamic drive with no moving parts. And it wouldn’t at all surprise me if it was based on real research. As I recall, the book jacket says he was debriefed by the White House after it came out, ie “How the fuck did you know this?”
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RamblinRover Luxury-Yacht
> RallyWrench
08/28/2015 at 12:42 |
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Ah, now I’m the one who’s misremembering. I didn’t recall the no-moving-parts thing at all. I had pictured something more like a brushless impeller.
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RallyWrench
> RamblinRover Luxury-Yacht
08/28/2015 at 12:47 |
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I watch the movie at least once a month, it’s a failing of mine.