"To the Chief of GAU KA, comrade Yakovlev
Commander of the Armoured and Mechanized Forces, comrade Fedorenko
Copy to the Narkom of Armament, comrade Ustinov
The NKTP received:
- A report on the gunnery trials of the S-34 100 mm gun installed in the KV-85 tank and
- A conclusion of the commission based on results of the gunnery trials.
- Even though the notes claim representatives of the NKTP were present at the trials, that does not represent reality, as the NKTP was not invited to the trials.
- The tank turret was not equipped with an an ammunition rack, spare parts and instruments, observation devices, and was not balanced. The resulting trials are unconvincing and incomplete.
- The established rate of fire cannot be accepted, as shells were not retrieved from an ammunition rack, but stacked in the turret bustle. Firing was performed with the hatches open, and the crew was especially trained, which should not be done during normal rate of fire trials. The commission claims that placing the ammunition on the floor is undesirable, considering the weight of 100 mm shells, but then it is not clear where the commission proposes this ammunition be placed, as a large ammunition rack on the floor is a common feature of all tanks.
- Firing from the move was ineffective, the causes of which were not established. It is known that firing from the move is an exceptionally important feature of a tank.
- The commission did not perform measurements of turret rotation on a slope. Considering that the gun turned out unbalanced and the turret was heavy after installing a 100 mm gun (the commission remarks on difficulty when turning the turret), it can be determined that the installation of an S-34 in the tank causes serious balance issues for the turret.