Shortround6
Major General
by comparison, German equipment failures were of strategic significance, and quite horrible, whether you want to measure that "horribleness on an isolated or in comparsison to the Soviets. The relief effort of Stalingrad failed because of equipment failures in German equipment, the assault on Moscow faltered in part because of the numerous breakdowns and failures of German equipment, I have already mentioned the Panther failures at kursk. The initial deployments of Tigers outside of Leningrad saw failure after failure of the tanks, and the list goes on and on. I have yet to find evidence of equipment failures of Soviet that were of strategic significance, or at least on the same scale as those I have mentioned on the German side.
There is "quality" in "quantity". The Germans often tried to introduce tanks (or other weapons) in small batches. A few mechanical failures and things turn pear shape very quickly. The Russians tended to use things in masses large enough that even a number of mechanical failures left a large quantity of "runners". If you have a large enough reserve of runners you still have enough tanks (or other items) to 'complete the strategic objective' a number of days later. One reason the Soviets had such a large number of tanks during the cold war was as a "reserve". They knew 30/40% of the initial wave would be side lined in about 4-5 days with mechanical break downs.
I am afraid this method doesn't tell us much about the individual reliability of the tanks.
Some years ago I had the honour of looking over an ex-soviet Whiskey class SS. I was struck by the high quality workmanship. Terrible design, (it was based on a German Type VII after all) but as well made as any conventional sub that I have ever seen. Doesnt prove anything other than to say that at least some Soviet manufactures were of good quality. then again, I had a friend who had the misfortune of owning one of those lada Nevas, terrible design AND a terrible construction as well. So on my own observation I would have to say that at bes Soviet equipment was patchy. But thats a ling way from saying all Soviet equipment was poor. And the historical records show that. Especially for the T-34.
I am not sure how a post war built submarine tells us much about a war time built tank. The Russians could build decent stuff at times. Build quality of tanks may have been much different in 1942 than in 1944/45. We know that "some" T-34s went into action with spare transmissions strapped to the rear deck ( no 360 degree traverse of the turret) which doesn't argue for high reliability. Later T-34s used a 5 speed instead of the early 4 speed, a different transmission might ( or might not) change things considerably.
With regard to the 35 year claim, I was thinking of the Syrian Army, which retained their T-34/85 in frontline service until after the 1973 Yom Kippur....thats about 30 years, which is not a bad service record. They retired their PzkPfw IVs after the 1967 war
No tank lasts 30-35 years if it is actually being driven and not being used as a gate guard without spare parts. Syrian T-34/85s were post war Czech built and there were a bunch more T-34 parts floating around in the 60s and 70s than there were German MK IV parts.