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  #1 (permalink)  
Old 02-March-2006, 09:29 PM
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Default New concept aircraft - sub-launched

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The Cormorant, a stealthy, jet-powered, autonomous aircraft that could be outfitted with either short-range weapons or surveillance equipment, is designed to launch out of the Trident missile tubes in some of the U.S. Navy's gigantic Cold War--era Ohio-class submarines.
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Old 02-March-2006, 09:36 PM
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Quote:
Originally Posted by Swift
And to continue on...
funding tests of some of the Cormorant's unique systems...after which DARPA will decide whether it will fund a flying prototype.

In other words, proof of concept. Not an actual project (yet). Another PopSci dream?
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Old 02-March-2006, 11:32 PM
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I'll predict, right now; if this thing is actually made, and actually flies a mission -- the first time it "lands" in the water to be retrieved, some enemy will claim with much cheering and shooting of small arms into the air, that they shot down the aircraft over water, and sank it.
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Old 03-March-2006, 09:16 AM
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This isn't really a new concept... the Japanese had subs that could launch planes in WWII. I believe they were called sentoku, and at the time were the largest subs ever built (bigger than many surface ships, in fact). I'm not sure if there was any mechanism for getting the planes back into the subs directly, though. I think they had to land nearby, then be moved back in.

Anyway, they had sub-based bombing attacks on the Panama Canal and San Francisco planned, but never went through with them.
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Old 03-March-2006, 12:51 PM
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Quote:
Originally Posted by snarkophilus
This isn't really a new concept... the Japanese had subs that could launch planes in WWII. ..snip.. I think they had to land nearby, then be moved back in.
It looks like other countries had them too and looks like you are correct on the name of at least one of them. Yes; seaplanes. (see planes run, run plane run)

The difference here...the plane can be launched from underwater.
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Old 03-March-2006, 03:58 PM
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Quote:
Originally Posted by NEOWatcher
And to continue on...
funding tests of some of the Cormorant's unique systems...after which DARPA will decide whether it will fund a flying prototype.

In other words, proof of concept. Not an actual project (yet). Another PopSci dream?
This will happen. Militaries all over the world are switching reconnaissance and light strike aircraft to UAV/UCAV types, wherever possible. Lighter, longer-ranged, and most importantly- cheap.

As for the sub-launched option, it's not far-fetched at all. A BGM-109 "Tomahawk" is a cruise missile that is essentially the same concept. The military (Navy) wants to stay as large, and have as large a budget as possible, meaning changing over the role of ballistic missile nuclear submarines (SSBN), and aircraft carriers.
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Old 03-March-2006, 04:24 PM
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Quote:
Originally Posted by Huevos Grandes
This will happen. Militaries all over the world are switching reconnaissance and light strike aircraft to UAV/UCAV types, wherever possible. Lighter, longer-ranged, and most importantly- cheap.
I didn't mean to imply that it won't happen. I am just doubtful that it will be any time soon.
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Originally Posted by Huevos Grandes
As for the sub-launched option, it's not far-fetched at all. A BGM-109 "Tomahawk" is a cruise missile that is essentially the same concept.
Not quite the same. The simple fact that we are talking jet vs rocket, ballistic vs aircraft, and strike vs recover makes it a different animal.
Again; not that it won't happen, but let's not debate the feasibility until we test some of the concepts.
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Old 03-March-2006, 04:52 PM
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Quote:
Originally Posted by NEOWatcher
I didn't mean to imply that it won't happen. I am just doubtful that it will be any time soon.
It's a fait accompli, for the reasons I stated.

Quote:
Originally Posted by NEOWatcher
Not quite the same. The simple fact that we are talking jet vs rocket, ballistic vs aircraft, and strike vs recover makes it a different animal.
Again; not that it won't happen, but let's not debate the feasibility until we test some of the concepts.
- Jet-driven UAV/UCAV is a proven concept in several militaries.
- The folding wing is not a big hurdle, and presents a significantly less difficult design constraint, than say- the V-22 Osprey helicopter, which will never see front-line use (or be part of any Presidential evacuation).
- Recovery is not a big hurdle either. Even assuming the footprint of the Cormorant is unable to accomodate wheeled landing gear, a sled is a feasible cheap add-on, as is a parachute.

It's too good of an idea (for the US Navy) to fail. Cheap, no one dies, and best of all- Cold War relics like SSBN's can be kept in commissioned inventory.

Last edited by Huevos Grandes; 03-March-2006 at 05:22 PM..
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Old 03-March-2006, 05:14 PM
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The idea of underwater launched aircraft was, as far as I know, first described by Edgar P. Jacobs in his comic masterpiece "The secret of the Swordfish", the first in the series of "Blake and Mortimer", in 1946. Some more info on the aircraft can be found here. Good drawings of it from the comic (except for the cover) aren't available, due t copyright reasons.
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Old 03-March-2006, 05:25 PM
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Quote:
Originally Posted by Huevos Grandes
It's a fait accompli, for the reasons I stated.
Taken individually, you're right, the technology is proven. There are differences in this application, and the whole idea here is that they are going to make some tests to be sure. Even if everything goes smoothly, we still don't have the prototype, or the contract for the prototype, let alone a contract for an actual craft. I'm just being patient until I hear some more details. The article said it was difficult, and explained why. Do you not believe them?
Quote:
Originally Posted by Huevos Grandes
- Jet-driven UAV/UCAV is a proven concept in several militaries.
True, but any that go underwater?
Quote:
Originally Posted by Huevos Grandes
- The folding wing is not a big hurdle, and presents a significantly less difficult design constraint,
Agreed
Quote:
Originally Posted by Huevos Grandes
- Recovery is not a big hurdle either. Even assuming the footprint of the Cormorant is unable to accomodate wheeled landing gear, a sled is a feasible cheap add-on, as is a parachute.
From the article: an airplane that starts and ends its mission 150 feet underwater.
Quote:
Originally Posted by Huevos Grandes
It's too good of an idea (for the US Navt) to fail. Cheap, no one dies, and best of all- Cold War relics like SSBN's can be kept in commissioned inventory.
I agree.

I don't want to sound argumentative because I'm not, but I get the impression that you think this is tried, true and tested. It could be...All I'm trying to convey is that there are a few more steps to go. (Plus, I have a very low opinion on how PopSci presents articles... as in where's my flying car?)
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Old 03-March-2006, 05:51 PM
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Quote:
Originally Posted by NEOWatcher
True, but any that go underwater?

From the article: an airplane that starts and ends its mission 150 feet underwater.
Hmmmm... let's see... Okay- as far back as 1984, G.I.Joe conceived of such a thing(I,II,III,IV). Not quite built-to-scale, but hey- it's more elaborate than PopSci ever got.

Quote:
Originally Posted by NEOWatcher
I don't want to sound argumentative because I'm not, but I get the impression that you think this is tried, true and tested. It could be...All I'm trying to convey is that there are a few more steps to go. (Plus, I have a very low opinion on how PopSci presents articles... as in where's my flying car?)
Yeah, I do agree with you on that one, bawse.
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Old 10-March-2006, 02:53 AM
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UAVs, grrr....

Underwater launch would be something new; however submarine carriers overall aren't a new idea even for the US, back in the 50s the F2Y Sea Dart was considered for submarine basing.
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Old 15-March-2006, 09:27 PM
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Something else to rob NASA budgets for.
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Old 15-March-2006, 09:32 PM
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Something else to rob NASA budgets for.
I don't see the connection. Cormorant is DARPA funded. Since it's military, NASA isn't involved.
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Old 15-March-2006, 09:52 PM
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It all has to come out of the same budget.
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Old 16-March-2006, 12:52 PM
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Quote:
Originally Posted by publiusr
It all has to come out of the same budget.
Are you saying the defense budget and the Nasa budgets are the same? I thought Nasa was a seperate appropriations bill.

Edit to add:
I'll agree to the fact that the entire Federal budget is the same. Given that, you can say any defense initiative, patriot act and Katrina funding has not only cut NASA, but has made a cut across the board.
Educate the people... Many that I talk to say that spaceflight is not necessary. IMO That is the root of the problem, and bubbles up by government reacting to that.

Last edited by NEOWatcher; 16-March-2006 at 01:32 PM..
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Old 16-March-2006, 02:26 PM
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Like what was said before all the technologies pretty much exist today. We can launch nuclear missles from underwater, so I don't think it's that much of a stretch to develop an unmanned aircraft [like the Predator drones] and package it inside a similar envelope. Once in the air, the missle splits apart and the aircraft unfolds...viola!

But retrieving the craft without surfacing the sub seems a tad bit trickier. I doubt they would want to degrade the silence of an Ohio submarine by strapping an airplane to it, or towing it along.

The major hurdle, as I see it, would be getting the program through the Pentagon's procurement process, but I have no doubt it will exist someday provided the will to continue remains.
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Old 16-March-2006, 02:51 PM
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Quote:
Originally Posted by Huevos Grandes
- Recovery is not a big hurdle either. Even assuming the footprint of the Cormorant is unable to accomodate wheeled landing gear, a sled is a feasible cheap add-on, as is a parachute.
Cormorant is supposed to land on water, then get picked up by a surface ship (or a surfaced sub).
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Old 16-March-2006, 04:12 PM
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The M2 submarine did this ages ago.
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Old 16-March-2006, 05:45 PM
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Quote:
Originally Posted by Damburger
The M2 submarine did this ages ago.
I get the feeling this thread has gone full circle and is repeating itself.
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