How many WW2 tanks to take down an Abrams?

[Ma Deuce]

How would JS-2s and JS-3s do, i mean technically those are WWII tanks.... even though they didnt see combat.

The IS-2 saw plenty of combat in 1944-45 (IS-3 was introduced too late to see action), but I doubt they would do any better. Their 122mm guns (massive as they were), had even lower penetration than the King Tiger's 88mm gun, because the King Tiger's gun had much higher muzzle velocity (see my comments above concerning how the King Tiger's gun would fare against the Abrams' side armor). The Abrams could still easily hit and kill either tank at beyond their own effective range.

[Sea Skimmer]

I thought the M829E3 was ready for procurement? .

I haven't found a referance, which indicates that it is, but then I also haven't found anything, which refers to it in 2003 or 2004 so its quite possibul that it is ready for production and may already be coming off the lines. The fact that the US Army hasn't yet to face any armor it couldn't destroy with the best 105mm ammunition probably hasn't given production a real high priority.

[The Yosemite Bear]

on a tagent of this....

Lets say by some wierd mericle George Bush and the Present Miilitary and inventory is magically transported to 1942. since none of the factories will be able to produce replacement parts what are our chances of dealing with Germany and Japan?

[Ma Deuce]

on a tagent of this....

Lets say by some wierd mericle George Bush and the Present Miilitary and inventory is magically transported to 1942. since none of the factories will be able to produce replacement parts what are our chances of dealing with Germany and Japan?

The current equipment would be fearsomely effective against WWII Axis units-- until they ran out of ammo (like you said, they can't produce replacement parts, including modern 120mm tank rounds, ATGMs, and AAMs). In short, I doubt they would be able to finish off the Axis completely (since they cannot resupply), but they would cut a huge swath out of their warmaking capabilities.

[The Yosemite Bear]

well look on the bright side we still have your namesake in service now, as we did then,

so there should be pleanty of ability to resupply Gasoline, .50cal, and 7.62mm

[Ma Deuce]

so there should be pleanty of ability to resupply Gasoline, .50cal, and 7.62mm

The 7.62mm rounds in service then were of the .30-06 Springfield flavor (7.62x63mm). The current ones are .308 Winchester (7.62x51mm), which was designed after WWII, because the .30-06 round was to long and bulky, had too much recoil, and it's extra power didn't give it any practical advantages in combat over the .308. I don't see why WWII-era ammunition factories couldn't be re-tooled to produce .308 or .223 ammo, but they may have trouble duplicating the modern powder used in either round (M16s, for example are very picky about what powder is used. Because of the M16's direct gas system, the powder must burn as cleanly as possible). Also, few modern military vehicles burn gasoline anymore (most US military vehicles use JP-8, a diesel derivative).

WWII .50cal rounds will work just fine with the modernized M2HB models, however.

[The Yosemite Bear]

Helll if it aint broke why fix it... (lol)

[phongn]

Doctrine and technology would be more important -- particularly command and control improvements applied to whatever extent possible in WW2. While we couldn't immediately build up all of our infrastructure, there should be detailed plans for many things for a longer-term advantage.

[Mr Bean]

Still a B-2 Strike to decaptate the Axis Leadership would help somewhat and a few AC-130 and Apache strikes aginst major armored collums would sure as heck help things

[phongn]

Still a B-2 Strike to decaptate the Axis Leadership would help somewhat and a few AC-130 and Apache strikes aginst major armored collums would sure as heck help things

B-2? A B-52 would be virtually immune to German air-defenses. It probably could head straight for Berlin and drop some LGBs on selected targets (during ODS, some of them were equipped with laser turrets for LGBs -- nowadays they don't need them since they use JDAMs)