Tag: Tank Destroyer

Ukraine’s New & Improved Home Made Self-Propelled Gun

Back in August we took a look at an improvised vehicle built by Ukrainian troops near Mykolaiv. It paired an MT-LB tracked armoured fighting vehicle with an MT-12 100mm anti-tank gun. Now engineers from Ukrtransgaz – Ukraine’s state-owned gas pipeline company, have taken that concept and developed an improved version of the home made self-propelled gun.

On Monday 26 September, Ukrtransgaz shared a post on their facebook page about the new vehicle saying:

“Our colleagues were approached by the soldiers of the TpO [Territorial Defence Forces] detachment with a request for the manufacture of such an installation. The idea of ​​combining an armored personnel carrier and a cannon into an improvised self-propelled gun was borrowed from the Mykolaiv military, which in August produced and successfully tested the first such installation in battle. So they decided to “improve” the trophy Russian MT-LB with the Ukrainian Rapira for their own needs.”

Ukrtransgaz noted that the vehicle took a team of six engineers two weeks to construct. Beneath the facebook post the company also shared a short, sadly low resolution, video of the vehicle being tested. TAB reached out to Ukrtransgaz for a better version of the footage but sadly they didn’t have one available.

The team behind the gun had assistance from an unnamed ‘specialized university’ who helped increase the gun’s elevation, which is normally capped at +20°, and in theory increase the gun’s range. It’s unclear which ammunition is being used with Ukraine’s MT-12s, whether it’s APFSDS or HEAT.

The company states that the vehicle is ready for operations and has successfully passed tests on the range, ready to be deployed. They also note that the team intends to manufacture at least two more such self-propelled guns.

Examining the Ukrtransgaz SPG we can see that the roof of the MT-LB has again been cut back but the the mounting of the gun is slightly higher and armour protection has been built up around the sides for the gun crew. From the footage shared we can see that theres room for around six troops to sit in the rear of the vehicle. Unlike the earlier Mykolaiv-built vehicle there does not appear to be the pair of hydraulic supports to stabilise the vehicle when firing.

Update 15/12/22: A video from the Ukrainian government’s United24 project showcased a further example of the homemade MT-LB mounted anti-tank gun vehicles. This time mounting the older T-12 100mm anti-tank gun, the T-12 is the predecessor to the MT-12 and uses the same family of ammunition. The vehicle seen in the video is on operations around Bakhmut, acting as a self-propelled gun. It lacks the armour shield to protect the gun crew seen on earlier examples of the homemade MT-LB based vehicles but it does have the supporting struts at the rear of the vehicle.

Update 23/12/22: Another interesting undated video of one of Ukraine’s MT-LBs with a 100-mm gun MT-12 mounted. Note the movement of the vehicle on firing, this example has the support struts at the rear of the vehicle, to minimise this and remove the need to re-lay the gun, but they have not been deployed. Unlike the version seen in the 15 December update this version utilises the MT-12s original gun shield but does not have additional protection added.

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Ukraine’s Homemade Tank Destroyer

On 12 August videos of an improvised vehicle built by Ukrainian troops began to circulate online. While we’ve seen technicals and an increasing number of trucks turned into multiple rocket launcher systems, usually using spare or salvaged parts, in recent months the new vehicle is even more interesting.

Gun at full elevation (via ArmyInform)

The available footage shows an MT-LB tracked armoured fighting vehicle paired with an MT-12 anti-tank gun. Traditionally, the MT-LB and MT-12 aren’t an unusual pairing as the MT-LB was, and is, often used to tow artillery, including the 100mm MT-12 anti-tank gun.

Gun in action (via ArmyInform)

The Ukrainian General Staff shared a video of the homemade tank destroyer or self-propelled gun (SPG) in action on the 13 August, with the caption:

“Ukrainian soldiers demonstrate their own development, made from captured muscovite equipment. MTLB army tractor + MT-12 Rapira anti-tank gun = self-propelled anti-tank gun. The infantrymen did all the design and construction work on their own. The system has already been tested and is in the combat zone.”

The caption said that the footage had been filmed in the Mykolaiv region in early August by members of the Department of Public Relations of the Armed Forces of Ukraine. A further video shared by ArmyInform, simply titled ‘Kraken’ (perhaps the name given to the vehicle as the Kraken is a popular symbol among Ukrainian forces), shares much of the same footage and the same description text.

The gun and vehicle are both of Cold War vintage with the 100mm smoothbore MT-12 entering service in the early 1970s and the MT-LB coming into service in the late 1950s/early 1960s.

The hydraulics supports added to the rear of the MT-LB (via ArmyInform)

From the footage we can see that the vehicle has been substantially modified to mount the gun, part of the rear roof of the vehicle appears to have been removed to allow the crew to operate the gun with some protection and to also achieve the gun’s maximum 20-degree elevation. Perhaps most interestingly, at the rear of the vehicle the builders have added a pair of hydraulic supports to stabilise the vehicle when firing, these can be seen descending from the rear of the MT-LB. These may be built using the MT-12’s original trail.

A view of the rear of the gun and vehicle (via ArmyInform)

The video even shows that a barrel travel lock has been fitted to lock the gun in place when the vehicle is on the move. The video does not show the interior of the vehicle so it is unclear how much the vehicle and the mounting point for the gun has been reinforced. The gun itself weighs just over 3 tons or 2, 750kg, though some of this weight from the carriage has likely been removed through the cannibalisation of the carriages when the gun was mounted. The video doesn’t indicate how much ready ammunition the vehicle can carry either. The video also shows the gun being fired by crew outside the vehicle pulling a long lanyard. Sources in Ukraine have said that in the field the system is fired by both the lanyard and the firing lever on the gun.

Barrel travel lock added to the vehicle (via ArmyInform)

While at first glance the gun looks like it could also be an older DD-44, which have been seen in use, the characteristic muzzle brake suggests its the later MT-12. While the official Ukrainian Army statement suggests both the MT-LB and gun were captured both were in Ukraine’s inventory in significant numbers before the current conflict. Before the Russian invasion in February the Ukrainian Armed Forces were said to have up to 500 MT-12s in service, in 2020. Similarly, Ukraine operated over 2,000 MT-LB before the invasion but there is visual confirmation of numerous Russian MT-LBs being captured.

Gun ready to fire (via ArmyInform)

So why go to the trouble of adapting an MT-LB to be capable of firing a gun from its roof? Perhaps the most likely answer is speed into action. While an MT-LB towing an MT-12 can in theory get the gun into action in under 2 minutes the creation of this ad hoc tank destroyer allows the gun to be brought into and out of action faster. With the need to unlimber and position the gun removed the improvised self-propelled gun can, in theory at least, shoot and scoot.

A photo of an adapted MT-LB, possibly a different vehicle from the one seen in the video shared by the Ukrainian General Staff (Photo redacted for OPSEC purposes)
A view of the rear of the vehicle showing the considerable reinforcement where the roof has been cut away (Photo redacted for OPSEC purposes)

Sources in Ukraine suggest that more than one of these vehicles has been constructed with work ongoing since at least July. Photographs shared with TAB support this with the vehicle pictured sporting the Ukrainian digital camouflage pattern. The photographs show the mount and the reinforcement done to the vehicle to support the MT-12. They are reportedly used more as assault guns, than ‘tank destroyers’, with the guns being used against Russian fixed positions and in support of infantry manoeuvres.

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