T-55AM1 Kladivo - "Hammer Down"

DrunkenLamp · October 26, 2026, 12:50am

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T-55AM1 Kladivo

History

T-55A is Czechoslovak licensed production of Soviet T-55A. There are only very tiny differences inbetween these vehicles, such as the gun sight being differently shaped or cupolas for both loader and commander being differently welded.

The Kladivo fire-control system is Czechoslovak domestic FCS developed in the early 80s specifically for the T-54 and T-55 series of tanks, alongside this the Palcát FCS was being developed for T-72 series, very little information is known about this FCS.
Alongside the laser rangefinder above the gun, system is also equipped with laser warning reciever on rear of the turret. Due to this modernization the ammunition count was lowered to 38 pieces of munition for the main gun. Kladivo FCS improved the accuracy by 6,4x in place, on move it’d be improved up to 3x.
The Kladivo SDIO was able to register lasing for up to 5 km at angle of 90° facing the front of the vehicle, this system would work from -15° degrees to +45° degrees.This system was able to distinguish between being targeted by sight and by laser rangefinder.

T-55AM1 is major upgrade of the aging T-55A, this included the Kladivo system, this system included the Kladivo FCS and Kladivo SDIO. Kladivo FCS was implemented in a form of laser rangefinder above the gun, meanwhile the Kladivo SDIO (Systém Detekce a Indikace Ozáření) was laser warning reciever, equipped on the rearo f the vehicle.

T-55AM1 tanks were primarily equipped with the Czechoslovak tank divisions, meanwhile it’s T-54AM1 counterpart primarily served under the motorized rifletroop divisions.

First major appearance of this tank happened during Štít 84 excersize, which was the biggest Warsaw Pact excersie in Czechoslovakia at that time. All nations of Warsaw Pact took part in this excersize. This excersize simulated NATO invasion on members of Warsaw pact.

The T-55AM1 alongside T-54AM1 has been exported to very few nations incomparison to the better T-55AM2 and T-54AM2. This tank is currently in service with Yemenese and Cambodian forces still to this day. For very short period of time after the dissolution of Czechoslovakia, very few of these saw service with the Czech Army until 1996, majority of which was sold away to Yemen or Cambodia, with very rare sight of T-54 equipped with Kladivo FCS in Libya.

Libyan T-54 equipped with Kladivo FCS but no Kladivo SDIO

Characteristics

Armament

100mm D10-T2S
- -5° degrees of depresion, +18° degrees of elevation
  Munition
  - 53-UBR-412 - APHE
  - 53-UBR-412B - APHEBC-T
  - 53-UBR-412D - APCBC
  - 3UBR3 - APCBC
  - 53-UBR-412P - APCR
  - 3UBM8 - APDS
  - 3UBM11 -APFSDS
  - 3UBK4 - HEAT-FS
  - 3UBK4M - HEAT-FS
  - 53-UO-412 - HE
  - 53-UOF-412 - HE-FRAG
  - 53-UOF-412U - HE-FRAG
  - 53-UOF-412Ž - HE
  - 53-UOF-412ŽU - HE-FRAG
  - 53-UOFT-412 - HE
  - 3UŠ1 - Shrapnel shell
  - 53-UD-412 - Smoke shell
  - 53-UD-412U - Smoke shell
  - Ammunition count: 38
7,62mm PKT
- 3500 rounds of ammunition
12,7mm PL kulomet vz. 38/46M DŠKM
- 300 rounds of ammunition
Sights/FCS
- Driver
  - TVN–2
- Gunner
  - TPN–1–22–11
  - Kladivo FCS
- Commander
  - TKN–1
Stabliization
- STP-2 Cyklon