F-35C a gateway to smaller carriers?

Post a reply

Confirmation code
Enter the code exactly as it appears. All letters are case insensitive.

BBCode is OFF
Smilies are OFF

Topic review
   

Expand view Topic review: F-35C a gateway to smaller carriers?

Re: F-35C a gateway to smaller carriers?

by Jack Ray » Mon Feb 04, 2008 5:02 pm

chuck wrote:Container ship hulls designs are not strengthened, or intended to be able to be strengthened, against under keel explosions. Their hull shapes are not designed to permit the degree of maneuverability expected of a warship. They are not required to maintain speed in heavy seas. They are not compartmentalized to anything like naval standards. There are no internal structural partitions along damage containment lines. They have relatively low structural redundancy compared to proper naval hulls.

Now if we accept these major intrinsic weakness of the merchant hull, but in every other way equip a merchant hull carrier to match the capability standards found in a proper naval carrier. How much do you think savings in the hull would amount to relative to the entire expense of building, equipping, fitting out, and bring to operational standard a single carrier? No if we take a longer view and calculate the entire life cycle non-hull cost of a carrier, how significant would savings in hull cost next to that?

If it is imperative to put as many planes into the air as possible at whatever cost, mercantile hulls would be a solution. But in a peacetime situation where a carrier is a capital ship, and the loss of a carrier a major national disaster, and limitations on an carrier's operational capabilities and survivability a major national policy handicap, then it makes no sense to harp on the minor savings that might be expected from building mercantile hulled carriers.
Speaking to some naval engineers and LHA drivers, the consensus is that such converted ships would be a useful possibility for 2nd and 3rd tier navies. One could beef them up with strengthened bottoms and sides, but their thought is that the sheer size of the vessels (50K tons and up), would make them relatively difficult to sink. In any event, such conversions would by definition involve the installation of tranversal bulkheads and strength decks.

Remember, the Colossus and Majestic classes were the original austere fleet carriers (merchant standards, lack of protection).

Jack

Re: F-35C a gateway to smaller carriers?

by chuck » Mon Feb 04, 2008 1:51 pm

Container ship hulls designs are not strengthened, or intended to be able to be strengthened, against under keel explosions. Their hull shapes are not designed to permit the degree of maneuverability expected of a warship. They are not required to maintain speed in heavy seas. They are not compartmentalized to anything like naval standards. There are no internal structural partitions along damage containment lines. They have relatively low structural redundancy compared to proper naval hulls.

Now if we accept these major intrinsic weakness of the merchant hull, but in every other way equip a merchant hull carrier to match the capability standards found in a proper naval carrier. How much do you think savings in the hull would amount to relative to the entire expense of building, equipping, fitting out, and bring to operational standard a single carrier? No if we take a longer view and calculate the entire life cycle non-hull cost of a carrier, how significant would savings in hull cost next to that?

If it is imperative to put as many planes into the air as possible at whatever cost, mercantile hulls would be a solution. But in a peacetime situation where a carrier is a capital ship, and the loss of a carrier a major national disaster, and limitations on an carrier's operational capabilities and survivability a major national policy handicap, then it makes no sense to harp on the minor savings that might be expected from building mercantile hulled carriers.

Re: F-35C a gateway to smaller carriers?

by Jack Ray » Mon Feb 04, 2008 10:23 am

chuck wrote:
Jack Ray wrote: I think it could work. French shipyards build massive ships (i.e., QM2) and I am sure they must build big container ships. Such a project would have to be much cheaper than building traditional, military standard CVs from scratch. I envision it as a modern and very capable escort carrier.

On the flip side, I am surprised China and India aren't moving towards this concept.

Jack
The requirements of the 3 navies are so different it would be a farce to equip them with identical carriers. Building carriers out of merchantile hulls would also be a farce if the navies in question actually thinks real fighting might be in the cards, as oppose to the carrier of navies like Thailand, which exist as ego boost to the monarch.

Regarding specific details, QM2 is not a particularly large ship despite the hype, she is just a voluminous ship, which gives her a high tonnage. But she is not a very heavy ship, and weighs less, and has less displacement, than a CVN. I still smirk when I see the hype about how much bigger she is than a giant carrier. The French did build the biggest and heaviest class of ships of all time back in the late 1970s however, when they built a class of 4 super ultra tankers. These displaced well over 550,000 tons at the time of completion, and that is still unsurpassed.

Regarding China and India not moving toward this concept of mercantile carriers, perhaps they are not because it doesn't work?
I disagree, Chuck.

Modern container ships have strong outer structures to maintain rigidity--flight decks and some inner tranversal bulheads would certainly strengthen this. They have efficient hull designs for speed and economy.

It is rather silly to criticize QM2 for lacking displacement vis-avis size. In shipbuilding capability, size is what matters. The fact the yards in Brittany, etc.. can build ships like QM2 and the 550K (fully loaded) tankers that you speak of is precisely what makes them suitable for building these other large container ship type hulls--they have the space and drydocks to do it.

As regards the hypothesis that the concept does not work, it would be interesting to have some proof. I understand that you are an engineer, so it should not be too difficult for you to find it.

V/R,

Jack

Re: F-35C a gateway to smaller carriers?

by richter111 » Mon Feb 04, 2008 4:24 am

I was looking at a WWII navy book earlier tonight. Setting aside the nuclear fuel issue in modern carriers, I noticed the Atlantic war was fought by Jeep carriers, the long legged Essex hulls working the pacific.

In the future, a simular concept. Nuc's for the Pacific, turbine for the Atlantic. Smaller carriers for the smaller pond, nucs for the big lake...

Re: F-35C a gateway to smaller carriers?

by Seasick » Sun Feb 03, 2008 10:51 pm

India has lots of coal, they don't need oil in super large quantities. I recall that they have a plan of a dominantly electric economy. Large coal powered electrical plants feeding the economy via high voltage lines. The grid is inspired by the USA's. I doubt that India would build large tankers that can't pass through the Suez canal. The USA does not have an offshore unloading terminal on the west coast. The only offshore terminal that can unload a super tanker in the US is the one that belongs to the Port of New Orleans. At other ports the super taankers have to off load oil on to smaller tankers to bring it into port. The Port Authority of New York New Jersey might be able to off load a super tanker pier side but I'm not sure.

Re: F-35C a gateway to smaller carriers?

by chuck » Sun Feb 03, 2008 4:20 pm

Jack Ray wrote:
richter111 wrote:perhaps even a design which the US and Britian and France could all build, a joint project if you will (with all it's internal problems and such)
I think it could work. French shipyards build massive ships (i.e., QM2) and I am sure they must build big container ships. Such a project would have to be much cheaper than building traditional, military standard CVs from scratch. I envision it as a modern and very capable escort carrier.

On the flip side, I am surprised China and India aren't moving towards this concept.

Jack
The requirements of the 3 navies are so different it would be a farce to equip them with identical carriers. Building carriers out of merchantile hulls would also be a farce if the navies in question actually thinks real fighting might be in the cards, as oppose to the carrier of navies like Thailand, which exist as ego boost to the monarch.

Regarding specific details, QM2 is not a particularly large ship despite the hype, she is just a voluminous ship, which gives her a high tonnage. But she is not a very heavy ship, and weighs less, and has less displacement, than a CVN. I still smirk when I see the hype about how much bigger she is than a giant carrier. The French did build the biggest and heaviest class of ships of all time back in the late 1970s however, when they built a class of 4 super ultra tankers. These displaced well over 550,000 tons at the time of completion, and that is still unsurpassed.

Regarding China and India not moving toward this concept of mercantile carriers, perhaps they are not because it doesn't work?

Re: F-35C a gateway to smaller carriers?

by chuck » Sun Feb 03, 2008 4:01 pm

simon b wrote:Replying to an earlier post. If the US did had massive cut backs in its military, surely the likes of N Korea and China would be even more inclined to build, build and build.

Build and build and build as they might, their annual defense budgets combined would not fund the US DoD for a month.

Re: F-35C a gateway to smaller carriers?

by simon b » Sun Feb 03, 2008 11:53 am

Replying to an earlier post. If the US did had massive cut backs in its military, surely the likes of N Korea and China would be even more inclined to build, build and build.

Re: F-35C a gateway to smaller carriers?

by Werner » Sat Feb 02, 2008 10:01 pm

I think the advent of smart bombs and precision munitions perversely gave new life to the A-6 and other platforms. They no longer had to iron hand themselves over the target. Pure performance and speed are not the issue with planes delivering JDAMs and SLAM-ER. Endurance and signature are the factors.

Isn't it interesting that the S-3 Viking soldiered on even after the removal of it's ASW gear simply because it was a useful "bomb-truck" for precision munitions?

I don't care if it's a recommissioned A-6 or whatever, but we need the VAH ("Heavy Attack") wings back. The A-6E hauled more bombs further than an FA-18E/F can today.

Re: F-35C a gateway to smaller carriers?

by Seasick » Sat Feb 02, 2008 9:22 pm

The F/A-18 and F-35 are great aircraft, but they are neither the superiority fighter the F-14 was, nor the attack aircraft the A-6 was. The EA-18G Growler will never be and can never be the EW aircraft the EA-6B is.
Werner

The capabilites of the F-14 and the A-6 were diminishing in the face of new threats from 1994 onward. The F-14 fighter's AWG-9 radar was analog and the AIM-54C could only be targeted at large aircraft beyond a certain range. The APG-71 radar in the F-14D was graetly improved but not very capable against the threats that were growing in the 1990s. The F/A-18E/F entering service now are equipped with the APG-79 AESA radar. This radar along with the AIM-120C and new AIM-120D can reach to about two thirds the range of the AIM-54C but with greater resolution, a harder radar signal to detect, and a faster more agile missile. The F/A-18E/F can dogfight well and turn as well as any other plane. With the advent of smart munitions especially JDAMs Navy aircraft can hit targets with smaller loads of bombs.

During the first gulf war the advanced bomb sights on the A-7E and A-6E didn't perform better than earlier versions of these aircraft. The problem wasn't the aircraft it was the bombs themselves. That was the imspiration to develope the JDAM munitions.

The EA-18G should do fine, the defense supression equipment has been shrinking since the late 1980s. The equipment on the Growler is actully a new system that was developed as an upgraded system for the EA-6B. They managed to fit it into an F/A-18F air frame. The system is fully digital, so its much smaller, kind of thing that happens when you replace vacume tubes with intigrated chips. Also some functions have passed to UAV that can operate much more effectvly.

Re: F-35C a gateway to smaller carriers?

by Mark Petersen » Sat Feb 02, 2008 6:33 pm

Werner, I suspect that if Obama did win the election then there would also be a very substabtial coat-tail effect.

Re: F-35C a gateway to smaller carriers?

by richter111 » Sat Feb 02, 2008 9:18 am

Dr. Rice?

Really?

With all the schmoozing that Rudy did when he dropped out, and the way McCain was praising him, it seems those two will be together...

Although I agree Dr. Rice would be a good compliment intellectually, I just wonder if she is electable due to her association with President Bush (Not Bush bashing here, just stating a concern)

On the flip side, I have a strong feeling after Tuesday it will be a Clinton/McCain race

If so, Mc Cain will be the new president. People in general don't trust Hillary. Just my gut feeling.

Ric

Re: F-35C a gateway to smaller carriers?

by Werner » Sat Feb 02, 2008 12:49 am

It would really depend on how massive the coat tails are. If he faces a Congress as divided as currently, or more so, there would be very little likelihood of such measures seeing the light of day. The hurt would hit in year 3-4, when a serious DoD cutback would finally bite.

The Republicans seem set to lose some seats because of retirements, but I haven't analyzed it.

The Republican ticket is very likely to be McCain and Dr. Rice. Her presence on the ticket would greatly minimize any effect a female or black presidential candidate would present on the other side. It's the smart move.

McCain ought to pledge to serve one term, but he won't.

Re: F-35C a gateway to smaller carriers?

by winstonshu » Sat Feb 02, 2008 12:21 am

Mark Petersen wrote:The Democratic field is down to Hillary and Obama. IMO if Obama wins the nomination and the election the future of the Naval building programs in the country will be in serious jeapordy. As I suspect the future of the F-35 and F-22 will be as well. I think if Obama wins th election we will see a major foriegn policy shift on the part of the United States. And not just in respect to Iraq and the WOT. We will see a major effort a concensus building. Whicjh is not an altogether bad thing but I suspect that an Obama administration would perfectly willing to place international concerns ahead of Us concerns. In addition to cutailment of building programs I think we will see the withdrawl of troops from Korea and Japan, most of the US forces in Europe with the possible exception of USAF base/s in the UK and maybe the 6th Fleets base in Italy. Diego Garcia would be closed. By the end of an eight year Obama administration I think we would see the USN down to five maybe six carriers and their supporting vessels, the submartine force would be scaled back as well including the Ohios as a "demonstation" of US commitment to disarmement and non-proliferation. The sole combat branches of the military that will see their funding grow are the USMC and Army airborne type units. This will be due to the willingness an Obama Administration to commit US forces to UN peacekeeping missions. Just my $.02
that seems a smidge on the alarmist side. an obama administration might WANT to do that (i do believe they would if they could), but they'd still have to get a budget/policy like that approved by congress... and can you imagine the kind of sh*tstorm a proposal like the above would generate in congress?

Re: F-35C a gateway to smaller carriers?

by Mark Petersen » Fri Feb 01, 2008 10:28 pm

The Democratic field is down to Hillary and Obama. IMO if Obama wins the nomination and the election the future of the Naval building programs in the country will be in serious jeapordy. As I suspect the future of the F-35 and F-22 will be as well. I think if Obama wins th election we will see a major foriegn policy shift on the part of the United States. And not just in respect to Iraq and the WOT. We will see a major effort a concensus building. Whicjh is not an altogether bad thing but I suspect that an Obama administration would perfectly willing to place international concerns ahead of Us concerns. In addition to cutailment of building programs I think we will see the withdrawl of troops from Korea and Japan, most of the US forces in Europe with the possible exception of USAF base/s in the UK and maybe the 6th Fleets base in Italy. Diego Garcia would be closed. By the end of an eight year Obama administration I think we would see the USN down to five maybe six carriers and their supporting vessels, the submartine force would be scaled back as well including the Ohios as a "demonstation" of US commitment to disarmement and non-proliferation. The sole combat branches of the military that will see their funding grow are the USMC and Army airborne type units. This will be due to the willingness an Obama Administration to commit US forces to UN peacekeeping missions. Just my $.02

Re: F-35C a gateway to smaller carriers?

by Jack Ray » Fri Feb 01, 2008 10:24 am

richter111 wrote:perhaps even a design which the US and Britian and France could all build, a joint project if you will (with all it's internal problems and such)
I think it could work. French shipyards build massive ships (i.e., QM2) and I am sure they must build big container ships. Such a project would have to be much cheaper than building traditional, military standard CVs from scratch. I envision it as a modern and very capable escort carrier.

On the flip side, I am surprised China and India aren't moving towards this concept.

Jack

Re: F-35C a gateway to smaller carriers?

by richter111 » Fri Feb 01, 2008 4:45 am

perhaps even a design which the US and Britian and France could all build, a joint project if you will (with all it's internal problems and such)

Re: F-35C a gateway to smaller carriers?

by Jack Ray » Thu Jan 31, 2008 9:14 am

In addition, all marks of the F-18 would probably be easily adapted to an SCB-125 Essex/Clemenceau class of light attack carrier.

This sort of ship is probably more suited to providing the spearhead to NATO navies, rather than equipping our own.

My ideal austere carrier (bang for bucks) would be a large vstol ship (50K, or more tons displacement) based on the hull of a large and fast container ship. This ship would have a large flight and hangar deck and modularized everything else. I think there would be a lot of capability in such a ship and it would be perfect for the F-35C, all helicopters, V-22, V-22 AEW. It would also be easily configured into a large LPH.

Jack

Re: F-35C a gateway to smaller carriers?

by Werner » Tue Jan 29, 2008 11:04 pm

The Ticos will have to go within a decade or so, though.

Re: F-35C a gateway to smaller carriers?

by Timmy C » Tue Jan 29, 2008 10:47 pm

Well, Destroyers are in pretty good shape - the Burkes have a few decades ahead of them yet.

Top