Navy Uses Railgun To Launch Fighter Jet

Void Main
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Edited Date/Time 1/26/2012 1:43pm
http://tech.slashdot.org/story/10/12/23/0014259/Navy-Uses-Railgun-To-La…

"In 2015 the aircraft carrier USS Gerald R. Ford will take to the seas and the plan is to use a railgun to launch planes, instead of steam powered catapults. From the article: 'The Navy developed its Electromagnetic Aircraft Launch System as a replacement for the steam catapults currently used on aircraft carriers. The EMALS is a linear induction motor that's capable of accelerating a 100,000 pound aircraft to 240 miles per hour in the space of 300 feet. Compared to a steam catapult, the railgun catapult is much smaller, more efficient, simpler to maintain, gentler on airframes, and can deliver up to 30% more power. It's also capable of being cranked down a whole bunch, meaning that it can also launch smaller (and more fragile) unmanned drones.'"

http://dvice.com/archives/2010/12/electromagnetic-1.php

Electromagnetic railgun launches fighter jet for the first time



For the first time ever, the US Navy has used a railgun to launch a fighter jet into the air. It may not be ready to launch spacecraft into orbit quite yet, but it's the first real step towards making that happen.

The Navy developed its Electromagnetic Aircraft Launch System as a replacement for the steam catapults currently used on aircraft carriers. The EMALS is a linear induction motor that's capable of accelerating a 100,000 pound aircraft to 240 miles per hour in the space of 300 feet. Compared to a steam catapult, the railgun catapult is much smaller, more efficient, simpler to maintain, gentler on airframes, and can deliver up to 30% more power. It's also capable of being cranked down a whole bunch, meaning that it can also launch smaller (and more fragile) unmanned drones.

This first EMALS test took place on dry land, but now that the Navy knows it works, it'll be integrated into the next generation of aircraft carriers, the first of which is scheduled to launch in 2015. Check out the video of the first launch, just below.



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SteveS
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12/22/2010 10:02pm
So they're emailing F18's now...
TerryK
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12/23/2010 8:32am
I always wanted to be one of those dudes in the yellow vests! lol Duck your head as an aircraft is catapulted over it. What a job!
fcr
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12/23/2010 9:08am
TerryK wrote:
I always wanted to be one of those dudes in the yellow vests! lol Duck your head as an aircraft is catapulted over it. What a...
I always wanted to be one of those dudes in the yellow vests! lol Duck your head as an aircraft is catapulted over it. What a job!
You ever see when things go bad on a deck, killed my desire when I saw the catch cable snap on one of those military shows. I don't have the vertical leap I once had.

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SteveS
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12/23/2010 11:04am
Hmm...what about electromagnetic drive systems?
Void Main wrote:
Someone thought "Railgun" sounded cooler. Smile
Yeah. Though the Navy does have a real railgun in the works, this is really just a regular linear induction motor. Like a roller coaster launch. I'm sure EMAL means something like ElectroMagnetic Aircraft Launch.
Void Main
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12/23/2010 11:08am
Yeah, the slashdot guys were railing the editor for the use of the word "Railgun". There was an article (and video) a week or two ago about the railgun though. From the video I saw it doesn't seem to be too practical at this point.
TeamGreen
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12/23/2010 11:12am
NAVAIR-COM has the cleanest damn insignia...

txmxer
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12/23/2010 11:51am
but would it take off on a treadmill?
CR250Rider
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12/23/2010 12:09pm
think of the things you could launch with a giant railrun.

Void Main
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12/23/2010 12:30pm Edited Date/Time 12/23/2010 12:30pm
CR250Rider wrote:
think of the things you could launch with a giant railrun.

A lot of stuff but if you want to be able to get that stuff to a very high speed in a very short distance the stuff will have to be able to withstand massive G forces/acceleration.
zjbell
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12/23/2010 1:36pm
How does it not tear the nosegear out of those jets? Crazy forces at work there.

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