Anon

"Armor belt was 1.7 inches thicker than Iowa."

And made of inferior steel. And not as sloped. And not triple layered. And not dual spaced.

They're not even remotely comparable armored schemes. The Roma was obsolete before the war even started.

"A 3,00 lb bomb flying at 630Mph. Hum SS-N-12 with 1K KG warhead hits at Mach 2.5"

There are exactly zero operational warships in the world that fire the SS-N-12.

"The American bombs had no trouble penetrating Japanese ships like the Yamato"

Yeah, and it only took 27 direct bomb hits and several torpedo hits(9 IIRC) to sink it.

What a vulnerable ship.....???

LOL

Need i remind you that post WWII in atomic bomb tests that battleships with inferior armor schemes than the Iowas SURVIVED Nuclear detonations INTACT?

"Of course you will say that Iowa armor was better steel"

It was, though the Yamato had a better TDS, the overall Iowa scheme was better.

"In 1944 the Navy determined that it would take five WWII-vintage 2,000lb GP bombs (roughly equivilant in explosive power to P-15/20/HY-2 but without the ability to penetrate the armored deck and without the incendiary effect) to mission-kill an Iowa."

It took more hits than that to sink an obsolete unarmored LPD in B-52 2,000lb JDAM testing just six months ago.

Someone is way off with their estimates, especially when one considers what it actually did take to sink the only ships with comparable protection to the Iowas that were lost....the Yamatos.

"GBU-28 , nothing more than an old 8" tube with a laser guidance seeker and fins strapped on, could penetrate over 20 feet of concrete and more than 100 feet of earth. But I believe you. It would just bonce off the Iowa."

It would never get anywhere near it's launch window against a US BBBG(Battleship Battle Group), so that's pretty irrelevant, eh?

A BLU-109B(the penetrator for the above named bomb, and a massive weapon only capable of being embarked on the F-15E, B-1, B-2, and B-52) would certainly penetrate an Iowas triple layered deck, but unless it hit a magazine it's explosive force(the BLU-109 only has a 370lb HE warhead) would be contained in the thick steel armored compartment it exploded in. The Iowas have massive compartmentalization for exactly that reason- in case the armored scheme is penetrated.
OTOH, a BLU-109B would probably not penetrate the 19" Class B armor conning tower or communications tube at all, and you can forget about the armored belt(even if you could get a low deflection impact).

"It took 3 days to design, think the chinese or some other "enemy" doesn't have some spare arty tubes lying around."

I don't think bomb carrying tactical fighters can get anywhere near release range against a USN BBBG, so i think it's quite irrelevant.

"How about those 2Kt/Blu-109 JSOW with MSTE. Or an AGM-130."

Which of our enemies is it exactly that have comparable systems...and what would one of those munitions do to a Burke or a Tico?

"Heck I'm betting the 250Kg shape charge hitting at Mach 1 from a 70s AS-30 will penetrate that armor."

I'm betting you're nuts. Armor spacing kicks the hell out of the shaped charge jet of a HEAT round. Dual armor spacing is just that much tougher. And the spacing between layers on an Iowa is immense, with as much as 30 foot spacing in some places.

"you have already put forth the idea in another thread that a carrier battle group is vunerable and that the carrier could be sunk because of no F-14s. When that same "mass" of planes that overwhelm the burkes and ticos strike a BB outcome is the same."

Depends. I have no illusions whatsoever that a SS-N-19 or AS-6 would do serious damage to an Iowa, just as it would to an armored Carrier(our carriers are pretty heavily armored in their own right), but one SS-N-19 hit wouldn't sink one either, and only the Russians have those- they've never sold the Shipwreck to anyone.

A Shipwreck would break a Tico or Burke in two. All hands lost kind of damage if one of those took a hit.

A BB or Carrier would probably take about 500 casualties from a Shipwreck or Kingfish hit, and would probably still have emergency power and limited propulsion. No doubt ALL the electronics on either would get whacked though. Lots of shock damage from a 700(SS-N-19) or 1000kg(AS-6) warhead.

Fortunately for us, only the Russians use either.

The Chinese and Indian Backfires all use the older(and much easier to intercept) AS-4 Kitchen.

Modern AShMs almost without exception are designed to kill destroyer sized vessels because that's the biggest ship that 98% of the worlds navies can field.

If you were designing an AShM specifically to kill a BB it would be the size of an SS-N-19 with massive tandem HEAT warheads, and it would be very, very expensive, and very, very large.