To establish the qualities of the mass produced T-34, three tanks were picked out at the end of 1940 to be run through large scale trials, including 3000 km of driving, gunnery, and communication tests. The conclusions outlined a number of issues with the design, but only because the Red Army had high hopes for this tank. It was already clear that the T-34 was going to be an exceptional fighting machine.
"Conclusions
- Due to its armament, armour, type and power of engine, and cruising range, the T-34 must be the prevailing tank in the Red Army’s system of armament due to the wide range of possibilities of tactical use of this tank. The design of this type of tank must be especially thoroughly polished.
- The T-34 does not meet modern requirements for the class of tank for the following reasons:
- Its firepower cannot be fully realized due to the observation devices, defects in gun installation and optics, cramped fighting compartment, and uncomfortable ammunition rack.
- The tank has sufficient engine power and top speed, but the performance of the tank is calibrated incorrectly, which reduces the tank's speed and mobility.
- Tactical use of the tank far from repair bases is impossible due to the reliability of the main clutch and running gear.
- The reliability of communication displayed in trials is insufficient for a tank of this class, which is caused both by the 71-TK-3 radio and its installation in the T-34 tank.
- In order to correct the aforementioned major defects, it is necessary to:
- Widen the dimensions of the turret and fighting compartment to resolve issues with the installation of gun and optics.
- Redesign the ammunition racks.
- Replace the existing observation devices with improved ones.
- Rework the main clutch, cooling fan, gearbox, and running gear.
- Increase the warranty period of the V-2 engine to a minimum of 250 hours.
- Increase the range and reliability of communication by installing a radio with a greater range and improving the installation.
Scientific and Technical Advisor to the Proving Grounds Chief, Military Engineer 1st Class, Glukhov
Chief of the 1st Department, Military Engineer 2nd Class, Sych
Chief of the 1st Section, Major Gerkevich
Accountable executor, Military Engineer 2rd Class, Medoviy"