McGuba wrote: ↑Sun Aug 09, 2020 5:28 pm
1. I would like to read those monographs as well. Where shall I start? Especially when it comes to the supposedly superior StuG IV. As far as I know it was very similar to the StuG III, the main difference was that it was built on the Panzer IV chassis instead of the Panzer III. Other than that it had the same speed, protection, main gun, etc. Are you sure you did not mean the Jagdpanzer IV/70 instead which was indeed fairly good as it had the same main gun as the Panther and a heavily sloped armour?
Of course I think of the late StuGs III and StuGs IV too, but I named these all vehicles "StuG IV" to distinguish them in the discussion from the early StuG III, which were used to support infantry but not to hunt enemy tanks.
No I mean StuGs not Jagdpanzers, which were to little to have operational impact.
So you have to read about the operations of armored units in the north of the Eastern Front, e.g. in Estonia or Courland - there are a number of descriptions of how very well camouflaged StuGs in well-chosen defense positions massacred the waves of T-34, SU-85 or ISU-122 which attack in the open area or on the Sandomierz bridgehead on the Vistula River, in January 1945, the StuGs company supported by few Konigstigers neutralized the entire Soviet heavy tank regiment, destroying a dozen IS-2s, the vast majority of which were destroyed by the StuGs and then they retreated.
(and the Tigers II were left on the battlefield, abandoned by crews unable to launch tanks buried in the thick mud

)
You are too attached to stats and technical data, but there is no tank indestructible, even a Konigstiger could be destroyed relatively easily by a shot to the side armor at close range or the engine - sometimes it is enough to break the track and the tankers trying to repair it can be shot with the MG.
The advantage of the Stugs was the low, compact hull, which made them extremely difficult to detect and neutralize, besides, they were definitely cheap to produce and their 75mm gun was enough to destroy heavy tanks with it. "StuG vehicles destroyed more than 20,000 Soviet tanks and armored vehicles on the Eastern Front during the war, which gives them the best destruction result among all German armored vehicles." (Wikipedia)
McGuba wrote: ↑Sun Aug 09, 2020 5:28 pm
2. I have these production numbers for the Soviet AFVs in 1944:
T-34: 13.900 (3.900 T-34/43 and 10.000 T-34/85)
SU-100: 500
IS-2: 2.200
ISU-122: 945
ISU-152: 1340
If we combine the latter ones we get nearly 5.000, which is half the number of T-34/85s produced in that year. So I would not say these Soviet SPGs and heavy tanks were so few compared to the T-34 medium tanks. In the same year Germany produced 3.200 Panzer IV tanks, so if these Soviet heavies were so few, then the German Panzer IVs were even more scarce, which I would hardly agree with.
As for the Firefly, it looks like at the time of Normandy one in four British Sherman was a Firefly and later this ratio went up to 50-50. I also would not say it was scarce or insignificant. Comet, M36 and M26 were indeed fairly late and did not see a lot of combat though. But had the war lasted longer their numbers would have increased in the end. However, the real deal was in the east and there the Soviet heavies were fairly significant from mid 1944, I think. These were supposed to be breakthrough tanks and SPGs, spearheading the offensives and thus I think they had a significant operational value.
One important thing at start, it was the Allies who began building heavy armored vehicles in response to the Tigers and Panthers but not vice versa.
Re: production numbers
But these numbers speak of all production in 1944, it's not like all these vehicles were at the front in the same time. There were maybe max 800-1000 heavy vehicles of all sorts in the same time on the whole eastern front. Divide this number by the number of kilometers of the eastern front in 1944, not even the entire front, but just take into account the length of the front in Karelia, in the Baltic countries, in East Prussia, Poland and Hungary, in other directions the number of tanks was very small. If you add it all, then divide the number of 1,000 heavy armored vehicles by the number of km, I assure you that it will not be even 1 heavy vehicle per km.
The Soviets were losing huge amounts of armored vehicles, so to tell the truth they didn't even keep up with the replenishment, many tank brigades operated in incomplete states, there were even differences in the number of tanks between each tank army. In the winter of 1944, after crossing the Dnieper, conquering Kiev and heavy fights near Zhytomyr, the 3rd tank army, before the operation of encircling the German bridgehead near Korsun, had maybe 250 tanks and self-propelled guns, about 30 heavy ones included, while the newly introduced 2nd tank army had about 600 tanks. It often happened that the tank army had 80-100 tanks during the offensive operation, this was the level of losses.
EDIT. The Russians had a total of 6 tank armies at the front in 1944-45