Friday, 15 February 2019


"Attachment to order #113-Mss
Approved by GKO decree #1148ss issued on January 14th, 1942

Requirements for quality assurance at tank factories
  1. Quality assurance is performed by the military representative of the GABTU.
  2. A tank can be considered accepted after firing the cannon and machineguns, test drive, correction of discovered defects and complete installation of equipment.
  3. The quality assurance process consists of:
    1. A 5 km drive for every T-34 and KV tank and 10 km drive for every tenth T-60 tank, chosen by the military representative.
    2. Firing the cannon on every tenth T-34 and KV tank and on every T-60 tank. Coaxial machineguns are fired on every tank.
      In addition, the military representative can control the quality of individual components and assemblies, as well as the quality of assembly of the tank.
  4. The military representative is permitted to accept tanks without clocks, voltmeters, ammeters (replaced with an indicator light), speedometers, aerothermometers (except one), turret fans (in winter time), turret traverse motors for the T-34, intercom (replaced with signal lights), spare containers, and radios in the event that there is a temporary absence of these parts at the tank factory."
RGAE 8752-4-8 p.169


  1. "intercom (replaced with signal lights)"

    Going back to the post about the T-34 having an intercom, yes, it was in the design, and no, they didn't all have on!

  2. If I understand, "turret fans" that's vetilating fan which exhaustes gases from crew compartment? That's interesting, because I think that T-34 with "pre mutra" turret use only "engine ventilating system" (gases exhaustes by engine fan through hole in bulkhead). I think that T-34 with "pre mutra" turret have only hole on turret top. Maybe I don't have right and also T-34 with "pre mutra" turret have fan on turret.

    1. The dome above the gun breech is the ventilation fan. You can see it even on the A-32's turret.

    2. Thank you! Few years ago I saw opinion that T-34 with "pre mutra" turret don't have fan on turret, and I thought that's true, because I don't found information about turret fan in english-translated manual. Today I easily found information about electric fan on turret in this manual (and in this manual, in part about turret, I see pre-mutra turret body). BTW, I see different dome on mutra turret, than on pre-mutra turret. Maybe that's mean that mutra use different fan?

  3. Replies
    1. I use term "mutra" for T-34-76 hexagonal turret. Maybe this term don't be popular on west (in Poland that's very popular term). This turret sometimes was described as "gayka/gajka". That's T-34-76 with "mutra"-

    2. The Russian terms are pirozhok (little pie) for the early welded/cast turrets, gaika (hexagonal nut) for the enlarged hexagonal stamped/cast turrets. I've never seen the former translated to English, but the latter is pretty consistently referred to as "hex" or "hexagonal" turrets.

    3. Peter, maybe term "mutra" have Polish conotations? I found that in Polish language "mutra" mean "screw nut". Maybe "mutra" that's Polish equivalent of "gaika" term?

    4. Even in bulgarian the word gajka (гайка) means a hexagon nut. So gajka/gayka = mutra = nut (the fastener not the fruit). So the word "mutra" is just translated "nut" and i think it is only popular in Poland.

    5. Certainly this is the first time I even see that word. TBH, outside very specialised literature specifically Polish terms more or less disappear completely from circulation in post-17th century contexts - by no means coincidentally apace with the sad demise of the realm as meaningful actor (or even separate political entity for several centuries) in European affairs.

    6. We can see power of internet- without internet, probably I can't found that "mutra turret", that's specifically Polish term, and you can't found, that "mutra turret" term even exist.