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Factory #92 prototypes

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"To the Deputy People's Commissar of Defense of the USSR
Marshall of the Soviet Union, comrade Kulik

Report #5 (previous report from September 24th, 1940 #383463ss)

I report on the status of experimental work on tank and anti-tank guns based on the decree from June 15th, 1940.

Factory #92:
  1. The 76 mm gun based on the F-34, mounted in a T-28, passed factory trials. 600 shots were made. Precision trials gave satisfactory results. Trials showed defects in the recoil mechanism. The system is being improved, trials continue.
  2. The 85 mm gun, mounted in a T-28, passed factory trials. 90 shots were made. The gun worked satisfactorily. A crack in the breech was found during the latest trials.
  3. Nothing to report on the 76 mm gun on the USV base. Development continues. Trials  continue.
  4. The factory is developing components and instruments for the 57 mm AT gun.
  5. The factory is developing elements for the 45 mm paratrooper gun.
Acting Chief of the Land Artillery Armament Directorate, Military Engineer 1st Grade, Lipin"



"To the Deputy People's Commissar of Defense of the USSR
Marshall of the Soviet Union, comrade Kulik

Report #8 (previous report from November 28th, 1940 #383915ss)

Factory #92:
  1. The 76 mm tank gun based on the F-34 in the T-28: one prototype is ready to be sent to ANIOP. A second prototype is being assembled with F-34 components.
  2. 85 mm tank gun: prototype #2 finished assembly, installed in a T-28, and is ready for trials.
  3. 76 mm high power anti-tank gun on the USV base: 4 prototypes assembled. Trials of the 1st prototype were unsatisfactory. On November 28th, the system underwent trials again. The recoil is long, the system rocks forward by 700 mm. The system is unstable when shooting. Further work is being done.
  4. 57 mm anti-tank gun: the factory is working on parts of the gun, finishing working blueprints. The mount is used from the experimental 76 mm regimental F-24 gun. The factory is making calculations for the recoil brake. One of the finished barrels is planned to be used in a pillbox.
  5. 45 mm paratrooper gun: due to work on tank guns, work was paused. Additionally, there are no clear requirements that the system must satisfy. Artkom still has not developed clear tactical-technical requirements. GAU requests to the General Staff regarding characteristics of this gun go unanswered."

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