2E58 tank stabilizer

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The majority of the remaining Soviet MBTs in the Russian Army featured different 2-Plane stabilizers. Ranging from the 2E42-2 "Jasmin" on the T-72B to the 2E42-4 "Jasmin" being mounted on later modernization programs of the T-72B, like the T-72BA and T-72B2 "Rogatka-2". Additionally, the 2E42-4 is also mounted on several T-90 variants ranging from the T-90 Obr.1992 being the baseline variant to the more modern T-90A. 

While the 2E42-4 was more modern than its predecessor, the 2E42-2, it still did not improve the guidance speeds for both horizontal and vertical axes. These speeds still remained the same; 3.0°/sec vertical elevation speed and 16°/sec-24°/sec horizontal guidance speed. (2E42-4 documentation)

By the late 2000s, the 2E42-4 was dated and was no longer able to perform that well in comparison with NATO stabilizers, which would outperform it. 

This forced Russia to start developing a new stabilizer, instead of using the conventional type of previously developed stabilizers based on hydraulic drives. This resulted in VNII 'Signal' opting into a new drive type, an electromechanical stabilizer based on electric valve drives.

2E58 stabilizer module


In 2015, the stabilizer was shown at a military expo in Russia. Presented as a new stabilizer, the 2E58 would be mounted on modernized T-72 and T-90 tanks but also be used on newly developed vehicles.

This new type of stabilizer would offer better overall performance when comparing it to older-generation stabilizers like the 2E42-2 and 2E42-4;

  • Longer operation lifetime
  • The lack of lightly flammable liquids under high pressure 
  • Easier service 
  • Lower energy consumption while remaining stationary

Elevation mechanism part of the electromechanical stabilizer 2E58

According to the advertisement video provided by VNII Signal, the new stabilizer exceeds the previously known 16°/sec-24°/sec horizontal guidance speed of the 2E42-4 by almost 2x times, which results in horizontal guidance speed of 40°/sec, while also improving on the vertical elevation speed. 

References: 

  1. VNII Signal
  2. ArmyTV

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