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US Navy Readying Electro-Magnetic Launch for New Carriers
Next Big Future ^
| January 13, 2009
| Brian Wang
Posted on 01/14/2009 4:36:29 PM PST by jmcenanly
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To: NoControllingLegalAuthority
?? You seem to be arguing that because something works, there can be nothing better.
The world is full of improvements to existing tech. It just may be that there may be a better way to catapult aircraft than steam.
Clearly, you're not an expert on the subject, so your emotional response in favor of steam catapults is puzzling.
To: El Sordo
Nope he’s still sticking with the horse and buggy, it works he’s sticking with it.
To: jmcenanly
Seems to this civilian, without all the heavy mechanical hydraulic machinery the current launch systems need, you could actually convert one or more submarines into an aircraft launch platform - the landings would probably need to be back onto a traditional carrier.
Imagine being able to pop up out of nowhere - and suddenly there are 10 F-35’s in the air.
43
posted on
01/15/2009 3:33:35 AM PST
by
Cringing Negativism Network
(During any "d" administration: USA's msm, become indistinguishable from the ussr's pravda.)
To: Cringing Negativism Network
"I think you're getting into the realms of fantasy here "
44
posted on
01/15/2009 4:14:32 AM PST
by
Oztrich Boy
(This world is a comedy to those that think, a tragedy to those that feel - Horace Walpole)
To: Oztrich Boy
Imperial Japanese Navy Sen Toku I400 Submarine Aircraft Carrier, WWII:
45
posted on
01/15/2009 4:26:24 AM PST
by
Cringing Negativism Network
(During any "d" administration: USA's msm, become indistinguishable from the ussr's pravda.)
To: Cringing Negativism Network
Wasn’t one of these featured in a Dirk Pitt novel?
46
posted on
01/15/2009 4:38:23 AM PST
by
aruanan
To: aruanan
47
posted on
01/15/2009 4:49:59 AM PST
by
Cringing Negativism Network
(During any "d" administration: USA's msm, become indistinguishable from the ussr's pravda.)
To: Cringing Negativism Network
Abd it took 45 minutes to get all three aircraft launched. That was risky surface exposure time even in WWII. Today it would be terminal.
Plus do you really want to cut a 1500 sqft rectangular hole in the pressure hull? Think any sailors would be willing to crew it? I predict an operational lifetime of one dive sequence.
48
posted on
01/15/2009 5:06:16 AM PST
by
Oztrich Boy
(This world is a comedy to those that think, a tragedy to those that feel - Horace Walpole)
To: jmcenanly
This may be sometime into the future. Nope, will be used on CVN-21.
To: loungitude
Steam is quiet and they have plenty of it. Its free on a nuke ship.Not so, they have dedicate two reactors to generate steam for launch operations.
To: exit82
USS Spadefish alumni? Yep. I was on her in 75. Thanks for the link it brought back memories.
51
posted on
01/15/2009 5:54:23 PM PST
by
Nuc1
(NUC1 Sub pusher SSN 668 (Liberals Aren't Patriots))
To: Jimmy Valentine's brother
Hi JVB
Of course it’s not free. And, I am not an expert. But, stop me when I go astray. The reactors are always running. They run for years between refueling. Always making steam. The incremental increase in reactor output to generate the steam for a launch is so small compared to running the ship’s stationary systems, or propulsion systems, that it can be considered ‘free’. These are all assumptions of mine, and I would welcome you or anyone to tell me if my assumptions are in error.
52
posted on
01/16/2009 6:28:13 PM PST
by
loungitude
(The truth hurts.)
To: AFreeBird
Yes, systems can be hardened against EMP. I think the other poster was talking about signals radiated from the electromagnetic launcher, not the launcher’s suceptibility to EMP. It makes sense that a giant linear electric motor like this would send out an electromagnetic signature that could be detected from a long, long distance.
53
posted on
01/16/2009 6:42:39 PM PST
by
loungitude
(The truth hurts.)
To: loungitude
I see your point. Um, how about a big giant Faraday cage?
To: loungitude
In this case your assumptions are incorrect. The reasons for going with electromagnetic launch are:
The number of reactor plants can be reduced because your not making steam for the catapults.
High pressure piping can be confined to the engine room spaces.
It's easier to run cable than to layout and weld high pressure piping.
You avoid safety issues in dealing with high pressure piping.
You don't have to worry about high pressure valves which are not cheap and are always a problem.
The airborne noise from the catapult drops off so maybe the crew can get some rest when they are in their berth during launch operations.
As for the electromagnetic catapult, check out the new rides at your local amusement part next time you go. Most use an electromagnetic launch so the technology has been is in use and proven.
To: Jimmy Valentine's brother
Thanks for the info. I’d have never thought that the steam demand would be close to even one reactor output.
Linear motors are used to propel passenger trains, also. So linear motors on very large scale are already developed. Thanks again for the knowledge.
56
posted on
01/17/2009 7:28:35 AM PST
by
loungitude
(The truth hurts.)
To: AFreeBird
Since the whole system is contained below deck, it is effectively in a Faraday cage already. Only the slot where the hook sticks out might need shielding. But the magnetism is another story. The ship structure might shunt it quite a bit, might not.
57
posted on
01/17/2009 7:32:47 AM PST
by
loungitude
(The truth hurts.)
To: jmcenanly
the pilots who will be launched on these systems are probably playing on swings in grade school about now Then we should design electromagnetic swing launchers.
58
posted on
01/17/2009 7:34:08 AM PST
by
Larry Lucido
(I was predestined to be an Arminian but am considering choosing Calvinism.)
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