Chinese electromagnetic catapult revealed

badguy2000

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the electromagnetic catapult is a key tech for Chinese nuke super AC....
it is reported that the tech was successfully finished 2 years ago and the leader of the R&D team, Prof. Ma won Chinese National top award for it last year.

now, some picture about Chinese electromagnetic catapult are revealed...

the lab



an interview of the leader of one sub-system R&D team .

 

Impluseblade

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Nice achievement! I like the way how this carrier project is well planned and executed.
 

W.G.Ewald

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Aircraft catapult - Wikipedia, the free encyclopedia

The size and manpower requirements of steam catapults place limits on their capabilities. A newer approach is the Electromagnetic Aircraft Launch System (EMALS). Electromagnetic catapults place less stress on the aircraft and offer more control during the launch by allowing gradual and continual acceleration. Electromagnetic catapults are also anticipated to require significantly less maintenance through the use of solid state components.[7]
Linear induction motors have been experimented with before, such as Westinghouse's Electropult system in 1945.[8] However at the beginning of the 21st century, navies again started experimenting with catapults powered by linear induction motors and electromagnets. EMALs would be more energy efficient on nuclear powered aircraft carriers and would alleviate some of the dangers posed by using pressurized steam. On gas-turbine powered ships, an electromagnetic catapult would eliminate the need for a separate steam boiler for generating catapult steam. The U.S. Navy's upcoming Gerald R. Ford class carrier includes electromagnetic catapults in its design.[9]
Electromagnetic Aircraft Launch System - Wikipedia, the free encyclopedia

The Electromagnetic Aircraft Launch System (commonly, EMALS) is a system under development by the United States Navy to launch carrier-based aircraft from catapults using a linear motor drive instead of conventional steam pistons. This technology reduces stress on airframes because they can be accelerated more gradually to takeoff speed than with steam-powered catapults.

Other advantages includes lower system weight, cost, and maintenance; the ability to launch both heavier and lighter aircraft than conventional systems; and lower requirements for fresh water, reducing the need for energy-intensive desalination.
 

W.G.Ewald

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Is it an electromag catapult or a cannon? from the report it is unclear.
The concepts and designs for an electromagnetic catapult and for a rail gun must be very similar.
 

jalsa

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How is it better than steam catapult?
 

W.G.Ewald

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How is it better than steam catapult?
One reason:

The Electromagnetic Aircraft Launch System (commonly, EMALS) is a system ... to launch carrier-based aircraft from catapults using a linear motor drive instead of conventional steam pistons. This technology reduces stress on airframes because they can be accelerated more gradually to takeoff speed than with steam-powered catapults.
 

Thai

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It's too premature to show off this "success" unless with propaganda aim !!! Even the most experiences in this area (The Big Red One USA) until now is not yet finish the study stage to put in application . Between the lab and practice there are a large distance ! Electromagnetic catapult without touching one time to understand before with steam catapult is an unbelievable thing . ........Don't compel the baby to chew before teething !!!!
 

badguy2000

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It's too premature to show off this "success" unless with propaganda aim !!! Even the most experiences in this area (The Big Red One USA) until now is not yet finish the study stage to put in application . Between the lab and practice there are a large distance ! Electromagnetic catapult without touching one time to understand before with steam catapult is an unbelievable thing . ........Don't compel the baby to chew before teething !!!!
don't make such a premature declaration now!

3 years ago, I would think so like you ..

but after sooo many surprise achievements such as J20,J31,Beidou,Liaoning.....etc, that came much fater than most people thought,I find it hard to deny it as easily and quickly as you do now....


Let's just wait and see.
 

Dinesh_Kumar

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No, our Navy Carriers also will come with catapults for follow on class of 65,000 ton displacement.

Presently, we do not require it on Vikramaditya, as twin turbine power of Mig-29 + 12 degree ski ramp is sufficient for launch.

Having said that, catapult launch gives certain advantages in launch speed and payload. This was more critical in the 1980s, with single turbine Sea Harrier, no buddy re-fueling and A2A refuellers were available at the time.The Commander at sea had limited options at hand.

Today, with Mig-29 twin turbine power, buddy re-fuelling and refuellers available, even our Naval commanders have mix and match mission capability.

In future, our catapults will probably be steam powered initially (tried and tested reliable stuff, many companies like Wilcox, ABB, BHEL having boiler technology). EMALs also under consideration, but new tech always has problems.

I can assure our Chinese friends no problem launching an Aircraft from a carrier deck, which is the main issue here.

(Thought 1:We should make a desi steam catapult first, and publicize it like the Chinese have done for EMAL.Release pics on the Internet , Spec Sheets, TV interviews with Team Leader, the works. It will add interest in desi defence solutions / jugaad/maverick kind of stuff. Separate EMAL team can be built later.)

(Thought 2 :Damn hell, having a cold war type arms race with the Dragon can be expensive.Inspite of coming from a democratic country, I feel like a Soviet !. We need low cost methods for our Arms Race )
 
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rockdog

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Empty vessels make most sound !!!!
Possibility 1: You are talking about Arjun or LCA?

Possibility 2: Things like J20, J31, Liaoning, Beidou, Y-20, WZ-10, Shenzhou Rocket, Tiangong Space Station... are invisible to you, and you only heard sound about them.
 

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