EMALS & JPALS for the JSF

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steve2267

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Unread post13 Oct 2017, 16:09

Are the sparks "normal" for arresting gear, or is that a characteristic peculiar to the electro-magnetic braking system the Ford uses?
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Unread post13 Oct 2017, 16:59

Depends on 'which sparks'. Big sparks from the hook. Towards the end we see small sparks from the arresting wire. During daylight operations these sparks not usually seen - they are brief - in night conditions with night film they are ARRESTING!

This is HEAVY METAL on HEAVY METAL stuff - screenshot shows coupling of cross deck pendant to the rest of wire sparking.
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CrossDeckPendantCouplingSparks.jpg
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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steve2267

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Unread post13 Oct 2017, 17:10

Spaz -- yeah, the screenshot you posted is to what I was referring -- not the tailhook.

So I take it that any arresting gear is going to spark like that, especially visible at night, because of the "heavy metal" on "heavy metal" contact at high speeds etc etc?
Take an F-16, stir in a little A-7, bake, then sprinkle on a generous helping of F-117. What do you get? An F-35.
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Unread post13 Oct 2017, 20:54

Seems those sparks are generated when fast a moving cable contacting the deck, or other cable(s).
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steve2267

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Unread post13 Oct 2017, 21:02

I was thinking they might have been spars of the 'lectrical variety... my bad.
Take an F-16, stir in a little A-7, bake, then sprinkle on a generous helping of F-117. What do you get? An F-35.
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Unread post13 Oct 2017, 21:48

Difficult to remember all the different names USN call their equipment. The 'terminal' (round thingy) connects the CDP with the PC (runs through sheave then under flight deck) which strikes the deck after 1st hitting the pad - cause of sparks.
“Impact pads are made up of several sections of polyurethane pads laid side by side and secured within an outer steel frame. The frame is both welded and bolted to the flight deck inboard of each of the deck sheaves at an approximate 45 degrees forward facing angle. The bolted section of the frame is removable in order to replace worn impact pads as needed. Upon initial arrestment by an aircraft the terminal will impact on the pads instead of the steel deck, minimizing damage to the fittings, purchase cable, and crossdeck pendants.” http://www.globalsecurity.org/military/ ... 10_ch3.pdf


http://www.navy.mil/management/photodb/ ... 24-057.JPG

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RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post14 Oct 2017, 00:29

Aircraft Launch and Recovery Systems in Sync
13 Oct 2017 PEO(T) Public Affairs

"Aboard the U.S. Navy's newest and most technologically advanced aircraft carrier, the USS Gerald R. Ford (CVN 78), it takes an entire suite of systems to enable safe and effective operations on the flight deck. This infographic shows the aircraft launch and recovery equipment (ALRE) aboard the ship, which returned from Independent Steaming Exercise Two (ISE-2) the second week of October. During ISE-2, Ford Sailors conducted 83 launches and traps, which included nighttime flight operations."



Source: http://www.navair.navy.mil/index.cfm?fu ... ry&id=6659
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ALREsystemsSYNC.gif
ALREsystemsSYNCzoomAFTford.gif
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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steve2267

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Unread post14 Oct 2017, 04:50

The Advanced Arresting Gear and ElectroMagnetic Aircraft Launching System had drawn the ire of Gilmore and received a lot of negative press. Haven't heard much about it as of late. Have they got the bugs worked out, and is it starting to live up to its promise?
Take an F-16, stir in a little A-7, bake, then sprinkle on a generous helping of F-117. What do you get? An F-35.
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Unread post14 Oct 2017, 05:50

I don't know if ALL the bugs are worked out of these systems however it is obvious they are both in use aboard USS Ford.

Remember GILMORE is always publishing old information without usually regard for current information. This thread has several articles about what was then current which contradicts the OLD Gilmore info. Sure there is more testing to be carried out at Lakehurst (testing is ongoing with all kinds of Cats/Traps gear & aircraft) however these systems are in use.

An example of what I would have thought was done & dusted but no....
http://www.navair.navy.mil/index.cfm?fuseaction=home.PhotoGalleryDetail&key=59D89215-1194-4C93-8B42-C27FEDCDDBA6 “Night flight during developmental testing of the new Low-FOD drogue at Naval Air Station Patuxent River. The new drogue will improve readiness, availability and significantly reduce the fleet burden of spending high-maintenance man-hours required to repair legacy drogues. (U.S. Navy photo)” http://www.navair.navy.mil/img/uploads/ ... 0Photo.jpg

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RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post16 Oct 2017, 06:40

Some night traps aboard the USS Gearld R. Ford.

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lamoey

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Unread post16 Oct 2017, 18:03

steve2267 wrote:The Advanced Arresting Gear and ElectroMagnetic Aircraft Launching System had drawn the ire of Gilmore and received a lot of negative press. Haven't heard much about it as of late. Have they got the bugs worked out, and is it starting to live up to its promise?


Certainly not a bugfree system as it keeps catching bugs :D
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Unread post16 Oct 2017, 21:37

'lamoey' :roll: Oh Dear. :doh: Weez wuz trapped into that one. :mrgreen: Note that the bolter is very hook bouncy flashy in video. :shock:
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post21 Oct 2017, 02:28

INDIA has a habit of buying FAULTY equipment so maybe this indicates that the EMALS is NOT good to go? <sarcasm off>
Reports: U.S. Offers EMALS for Indian Carrier Development Program
20 Oct 2017 Sam LaGrone

"India could be the first export customer for the aircraft launching system that is key to the new Gerald R. Ford-class carriers, according to reports in the Indian press this week. Citing sources in the Trump administration, the Press Trust of India reported this week that the U.S. has approved the Indian military use of General Atomics’ Electromagnetic Aircraft Launch System (EMALS) for its carrier development program.

The timing of the technology transfer is set to occur ahead of Secretary of State Rex Tillerson’s anticipated visit to India in the next several months....

...Naval Sea Systems Command has shared information on carrier development, and India has reached out to U.K. firm BAE Systems, DCNS in France, Lockheed Martin and Russia’s Rosoboronexport for more information on carrier design.

EMALS is key to the Ford-class and its new reactor. Without having to generate the steam needed for older catapults designs, the Navy was able to develop smaller and more efficient [I DID NOT KNOW THAT - I read that 3 times previous electricity power needs to be created now for FORD class AFAIK] reactors....

Source: https://news.usni.org/2017/10/20/report ... nt-program
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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neptune

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Unread post21 Oct 2017, 05:32

[quote="spazsinbad"]INDIA has a habit of buying FAULTY equipment so maybe this indicates that the EMALS is NOT good to go? <sarcasm off>
[quote]Reports: U.S. Offers EMALS for Indian Carrier Development Program
20 Oct 2017 Sam LaGrone

"India could be the first export customer for the aircraft launching system that is key to the new Gerald R. Ford-class carriers, according to reports in the Indian press this week. Citing sources in the Trump administration, the Press Trust of India reported this week that the U.S. has approved the Indian military use of General Atomics’ Electromagnetic Aircraft Launch System (EMALS) for its carrier development program.

The timing of the technology transfer is set to occur ahead of Secretary of State Rex Tillerson’s anticipated visit to India in the next several months....

...Naval Sea Systems Command has shared information on carrier development, and India has reached out to U.K. firm BAE Systems, DCNS in France, Lockheed Martin and Russia’s Rosoboronexport for more information on carrier design.

EMALS is key to the Ford-class and its new reactor. Without having to generate the steam needed for older catapults designs, the Navy was able to develop smaller and more efficient [I DID NOT KNOW THAT - I read that 3 times previous electricity power needs to be created now for FORD class AFAIK] reactors....

....they'll need a nuke to run it and that is not their strong suit!
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rheonomic

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Unread post21 Oct 2017, 05:46

neptune wrote:EMALS is key to the Ford-class and its new reactor. Without having to generate the steam needed for older catapults designs, the Navy was able to develop smaller and more efficient [I DID NOT KNOW THAT - I read that 3 times previous electricity power needs to be created now for FORD class AFAIK] reactors....


I'm not really a ship person, but as I understand it the reactors are smaller and more efficient, but they want the ship to generate a lot of power for future expansion for things like DEW, various electronic systems, etc.

After all, the Navy anticipates operating the Ford class into the 22nd century...
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