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ASSAIL

The Bunker Group
Verified Defense Pro
The USNI has a link to the unclassified 1978 three-volume history, Sea-Based Airborne Antisubmarine Warfare 1940-1977 that was declassified in 1990.
Thanks for this, I have some reading to do.
 

John Fedup

The Bunker Group
LM has announced some future plant closings involving the Freedom class, heavy torpedo production and the Mk41 VLS. From a foreign navy perspective, the looming end of the Mk41 is significant as the reason suggested is due to the larger size of future hypersonic missiles which won’t be compatible with the Mk41. Hopefully a future VLS for hypersonic missiles will somehow be compatible later builds of the T26 by the UK, Canada, and Australia.
 

ngatimozart

Super Moderator
Staff member
Verified Defense Pro
That's certainly going to put the cat amongst the pigeons for the newbuilds coming up. What do they go with? What do they do?
 

Redlands18

Well-Known Member
That's certainly going to put the cat amongst the pigeons for the newbuilds coming up. What do they go with? What do they do?
Yes it seems to be a bit strange, the USN, RAN, RN, RCN and Spain between them have somewhere in the vicinity of 70-80 ships to be fitted.
 

alexsa

Super Moderator
Staff member
Verified Defense Pro
Yes it seems to be a bit strange, the USN, RAN, RN, RCN and Spain between them have somewhere in the vicinity of 70-80 ships to be fitted.
I am with you on this one. It appears to be case of reducing sites rather than dropping production and the author is drawing some very long bows in his assumptions.

The assumptions made that the 21" Mk48 would be made obsolete by the 12" LWT ignores the fact that all submarines in build (include the new Virginia) only have tubes for 21". And to be honest in submarine to submarine combat ... firing a LWT (with it reduced range) would be a gift to the other side because you have to be quite close to take the shot.

Same with Mk41 noting the SM6 and SM3 later blocks are just getting rolled out. I can see the point in shutting plants that can only do one thing .... but this does not necessarily mean production is about to stop.

However, on the LCS ... well the author may have a point there.
 

ngatimozart

Super Moderator
Staff member
Verified Defense Pro
I am with you on this one. It appears to be case of reducing sites rather than dropping production and the author is drawing some very long bows in his assumptions.

The assumptions made that the 21" Mk48 would be made obsolete by the 12" LWT ignores the fact that all submarines in build (include the new Virginia) only have tubes for 21". And to be honest in submarine to submarine combat ... firing a LWT (with it reduced range) would be a gift to the other side because you have to be quite close to take the shot.

Same with Mk41 noting the SM6 and SM3 later blocks are just getting rolled out. I can see the point in shutting plants that can only do one thing .... but this does not necessarily mean production is about to stop.

However, on the LCS ... well the author may have a point there.
The other thing that I have trouble getting my head around is how could a 12 in LWT sink a FFG, DDG or a CCG. In fact I don't think that a 21 in LWT could although it probably cause reasonable damage to the hull. But neither of them have the punch of a Mk-48 or its equivalent in other navies.
 

StingrayOZ

Super Moderator
Staff member
Interesting commentary, and useful to highlight the closures.

However, while I am sure there are a lot of new build 12" LWT, the 21" heavys are just as important and useful as they have ever been. However, there aren't a whole lot of new sales for this specific line, most heavy weighs are in stock piles, with only a hand full of armed firings a year. It may make sense to have one line/facility that can produce both light and heavy weight torpedo's with a sustainable workload.

IMO mk41 will be around for a while yet, however, we are reaching the development end of that cell size, and that size is a problem for SM-3 and advanced high altitude weapons. I don't see MAC replacing mk41. Its not designed for hot launched weapons (ie surface ships), its about leveraging existing SSBN infrastructure to come up with a solution for subs. The mk57 size is slightly larger, and can handle more powerful rocket motors. However I also don't see mk57 replacing mk41, more augmenting. I also don't see the mk57 being the ultimate evolution. Putting PGS on surface ships is new idea, seemingly from the author..

The LCS, well are perhaps coming to the end of the great LCS experiment. While perhaps not building the perfect ship, its clear the USN and the US as a nation has learnt a lot about aluminium ships. Also, there is a flight II of the expeditionary fast ship spearhead class being designed and constructed. Fast aluminium cats, as logistics ships may still be very useful, and may really solve a lot of the Marines fast amphibious problems. However, making fast aluminium combat ships, may not be an idea that perpetually continues. It may be best to consolidate that type of ship building to a single yard, and build just a single design for those type of needs. The new spearheads are keen to advertise their medical capability, and it may be useful to have smaller, but faster to deploy medical ships to disasters or urgent need, like an ambulance. When tied up or in protected waters the cat hull offers nice stability as well.
 

alexsa

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Staff member
Verified Defense Pro
The other thing that I have trouble getting my head around is how could a 12 in LWT sink a FFG, DDG or a CCG. In fact I don't think that a 21 in LWT could although it probably cause reasonable damage to the hull. But neither of them have the punch of a Mk-48 or its equivalent in other navies.
I agree and the whole idea that a 12" LWT torpedo can do the job of 'any' heavyweight is laughable. Range and hitting power cannot be compared irrespective of the target you are shooting at.

LWT provide air assets with an effective ASW weapon as well as surface ships in certain circumstances (in a hot situation I suspect air assets will drop more of these than are fired from a ship).

The heavy weight torpedo is a multipurpose weapon intended to be fired at long range and guided to its target.

Anyway ... rant off.
 
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John Fedup

The Bunker Group
Interesting commentary, and useful to highlight the closures.

However, while I am sure there are a lot of new build 12" LWT, the 21" heavys are just as important and useful as they have ever been. However, there aren't a whole lot of new sales for this specific line, most heavy weighs are in stock piles, with only a hand full of armed firings a year. It may make sense to have one line/facility that can produce both light and heavy weight torpedo's with a sustainable workload.

IMO mk41 will be around for a while yet, however, we are reaching the development end of that cell size, and that size is a problem for SM-3 and advanced high altitude weapons. I don't see MAC replacing mk41. Its not designed for hot launched weapons (ie surface ships), its about leveraging existing SSBN infrastructure to come up with a solution for subs. The mk57 size is slightly larger, and can handle more powerful rocket motors. However I also don't see mk57 replacing mk41, more augmenting. I also don't see the mk57 being the ultimate evolution. Putting PGS on surface ships is new idea, seemingly from the author..

The LCS, well are perhaps coming to the end of the great LCS experiment. While perhaps not building the perfect ship, its clear the USN and the US as a nation has learnt a lot about aluminium ships. Also, there is a flight II of the expeditionary fast ship spearhead class being designed and constructed. Fast aluminium cats, as logistics ships may still be very useful, and may really solve a lot of the Marines fast amphibious problems. However, making fast aluminium combat ships, may not be an idea that perpetually continues. It may be best to consolidate that type of ship building to a single yard, and build just a single design for those type of needs. The new spearheads are keen to advertise their medical capability, and it may be useful to have smaller, but faster to deploy medical ships to disasters or urgent need, like an ambulance. When tied up or in protected waters the cat hull offers nice stability as well.
WRT the LCS, has anyone seen a decent article assessing the performance differences between the Freedom and Independence classes? Most problems seem to be with the Freedom class (maybe I just haven’t seen any on Independence). Anyways, the program needs to end.
 

Terran

Well-Known Member
I think it’s important to put the LCS in context. They were designed for the asymmetrical conflict model.
As such it was designed more for low intensity patrols off thirst world shores hunting pirates and sending SF troops into troubled lands. Which is why I generally feel the classes should be kept but in the South Atlantic, Gulf of Mexico and Med. where said operations would be the norm.

Both classes have had issues. The Indi class has had corrosion issues.
 

John Fedup

The Bunker Group
Well there is a bunch of them now and to junk them probably doesn’t make sense economically (assumption by me) but the cost of operation may make the F-35 CPFH look like a great deal and at least it delivers effective capability.
 

StingrayOZ

Super Moderator
Staff member
WRT the LCS, has anyone seen a decent article assessing the performance differences between the Freedom and Independence classes? Most problems seem to be with the Freedom class (maybe I just haven’t seen any on Independence). Anyways, the program needs to end.
Everything I've read seems to indicate they aren't heading in that direction anymore. However the Independence seems to have had more success, with the last 4 to be built will be Independence ships (totaling 19) with no matching orders for the freedom class. While this program cops a lot of media and flack IMO, in the niche they were designed for, they can do that. It was an odd program, with lots of confused issues, but the media feeds off that kind of stuff. Throw in all the risk of a new class, with all the risk of new tech, out of a material the US doesn't typically build entire navy ships out of, and high level targets for speed, sure its had issues.

They will probably do these missions better than the pegasus class did. Chasing drugs and pirates and patrols outside of US waters, but not in war or contested spaces. The USN is a large navy, and it can have a class for this kind of mission

They have been successfully (sort of) deployed, and the lighter design, has been useful in perhaps allowing basing in non-traditional allies, like Singapore and Vietnam.

They aren't a traditional frigate, and they really aren't going to replace the role of a traditional FFG. The new frigates are those ships.
 

John Fedup

The Bunker Group
Perhaps the Zumwalt has finally found a mission. The combination of stealth and surplus power should allow for good control over unmanned assets in contested waters and with added hypersonic missiles and hopefully laser weapons it should be reasonably survivable.
 

Sandhi Yudha

Well-Known Member
Looks like an innovative design, it also has export potential, many LSTs around the world need to be replaced.
Only the expected service life of 20 years is not that impressive.
 

John Fedup

The Bunker Group
A suggestion that the America class can serve as a CV “lite”. Makes sense to me, it exists now and can be built reasonably quickly. Sure, a smaller CATOBAR CV would be nice but the time and expense of designing another carrier is a big negative given some of the recent design mis-steps. Once Ford passes the shock tests, CVN builds with be more secure. Perhaps a joint USN/RN redesign of the QE class for CATOBAR might be a distant option.
 

Terran

Well-Known Member
I disagree. I do think that elements of the CV light concept could improve the LHA America class ships. A Ski jump and rolling landing ability would be nice. But neither it as a CV light nor Queen Elizabeth have the growth potential to match the potential needs to face off against sea denial/Air denial. That being the ability to sortie multiple longer range assets, Escort and refilling for establishing and maintaining a penetrating package into denied space.
 

ngatimozart

Super Moderator
Staff member
Verified Defense Pro
I disagree. I do think that elements of the CV light concept could improve the LHA America class ships. A Ski jump and rolling landing ability would be nice. But neither it as a CV light nor Queen Elizabeth have the growth potential to match the potential needs to face off against sea denial/Air denial. That being the ability to sortie multiple longer range assets, Escort and refilling for establishing and maintaining a penetrating package into denied space.
Actually if the QE class was modified to CATOBAR then it definitely would meet the criteria. I do believe that there exists a CATOBAR design option for it, because the UK looked at it and started the process around 2011 when their pollies were going through their cost cutting frenzy.
 

CB90

The Bunker Group
Verified Defense Pro
Actually if the QE class was modified to CATOBAR then it definitely would meet the criteria. I do believe that there exists a CATOBAR design option for it, because the UK looked at it and started the process around 2011 when their pollies were going through their cost cutting frenzy.
Really depends on what one considers to be a “CVL.”

As you pointed out, QE certainly had the capacity to simply be a CATOBAR carrier. And the Charles de Gaulle class is actually a fairly small carrier, with roughly the same displacement as a LHA, but with CATOBAR capability including AEW.
 

t68

Well-Known Member
Actually if the QE class was modified to CATOBAR then it definitely would meet the criteria. I do believe that there exists a CATOBAR design option for it, because the UK looked at it and started the process around 2011 when their pollies were going through their cost cutting frenzy.
Yep only have to look at the original collaboration between the English and French with PA2, I think from a design there was to be slightly different form with extra sponsons to give the angled recovery area extra length

This gives a good overview of the early project, but there was an excellent site which has gone by the way side and I can’t find again Bedall or something along that line, would love to find it again as was very informative on RN ships
 
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