Hi everyone,
Just sharing some points here.
Armour effectiveness is usually considered to be:
thickness of plate / cosine angle of the projectile striking from the vertical x effectiveness factor
This effectiveness factor might vary from about 0.5 up to about 1.25 depending mainly on
quality, type (cast or rolled, FH or Homogeneous) projectile/armour thickness ratio.
During the WWII Russian armour varied in quality depending on when and where it was produced.
I understand prior to 1942 it was generally of a consistently good quality both rolled or cast.
However during 1942 and much of 1943 the pressure to produce quantity plus the disruption to production caused many variations in quality. The cast armour of which the USSR used exstensively was prone to flaws and inconsistencies during this time. This produced variable levels of protection from tank to tank.
1944 and 1944 saw an improvement of casting technique with improved protection and reliability.
Later T34/76s had improved turret designs to give better protection and more working room to the crew.
Also be aware the thickness of side armour on the T34 gives about twice the protection of the Pzkpfw IV.
German armour was of good consisent quality up until early or mid 1944.
Scarceness of vital elements forced manufacturers to used subsitutes which produced armour which could be prone to cracking when hit.
When discussing performance of ammunition it must be remembered what type it is.
Some of the penetration figures in previous posts are for specialised types using extremely hard but scarce tungsten carbide. T34s would count themselves fortunate to have any rounds of this type in 1942/43. I understand supply improved during 1944. Non tungsten Russian AP round also had the tendancy to shatter on impact with FH armour during 1942/43 as quality was inconsistant mirroring the situation with armour.
Pzkpfw IVH would probably not have any tungsten rounds at all, as 75mm APCR was discontinued in 1943 with only 50mm round still continuing to consume this important material for a time.
The T34 was more mobile the the IVH although in some versions its transmission was prone to failure.
The difference between the two when crossing hard ground would not be significant.
The result of all the above is that yes the Mk IVH should still have a reasonable edge on open ground.
However if ranges are able to be closed the result is in doubt. Russian crew training and optics did not promote engagement ranges much beyond 750m.
The main edge Germany had was in its level of crew training, although by mid 1944 attrition and some improvements ment
the Russians weren't far behind in this regard.
As you all know it is hard for game designers (or anybody else) to come up with accurate modelling data, or for a game to model the effects of all features or faults.
If I can be of help, please let me know. I have a German chart advising engagement ranges for the Tiger I vs T34, but being new here am not sure how to post it. I have a reasonable collection of data on most AFVs.
Regard
Brian