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According to the International Institute for Strategic Studies "Military Balance", Russia has 2,800 tanks and 13,000 other armoured vehicles (reconnaissance and infantry fighting vehicles) in current use with another 10,000 tanks and 8,500 armoured vehicles in storage. /2

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Stored vehicles can be mobilised and put on trains for transportation to wherever is needed. In the months leading up to the war in Ukraine, trains carrying tanks and other armoured vehicles were a frequent and highly visible sight across Russia. /3 twitter.com/i/status/14892

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However, the Russians have had major problems.

@TrentTelenko

highlighted evidence of tires bleeding oil because of poor maintenance, causing the abandonment of many Russian vehicles in the field and their capture by the Ukrainians. /4

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Trent Telenko

@TrentTelenko

· Mar 2

This is a thread that will explain the implied poor Russian Army truck maintenance practices based on this photo of a Pantsir-S1 wheeled gun-missile system's right rear pair of tires below & the operational implications during the Ukrainian mud season.

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There appear to have been many other breakdowns plaguing Russia's ability to fight. A recent video shows a BMP crew desperately trying to fire their jammed main gun in the midst of a Ukrainian attack which has already destroyed another Russian BMP. /5

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Mechanical problems also plagued the Russian invasion of Georgia in 2008. Repair crews had to be stationed every 15 mi (25 km) along the invasion route to deal with the volume of breakdowns. So this isn't a new problem. The Russians don't seem to have solved it yet. /6

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Facing huge losses of equipment in Ukraine, Russia has mobilised stored vehicles. But here, too, the situation appears to be bad: according to Ukraine's military intelligence service, Russia's 4th Tank Division found that only 1 in 10 tanks mobilised from storage was usable. /7

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Russia keeps its unused tanks in Bases for Storage and Repair of Weapons and Military Equipment (BHiRVT) and Central Tank Storage Bases (TsTRB). There were hundreds of such bases around Russia, but it aims to reduce the number to 24 large transshipment and logistics complexes. /8

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Let's look at one of these large sites. This is the 227th military storage base in Ulan-Ude, Buryatiya (51.895771°N 107.528414°E). It's located alongside a railway line to enable easy transshipment of vehicles by rail. Many tanks now in Ukraine likely came from here. /9

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Large numbers of vehicles are visible standing in the open air, in front of a number of storage sheds and workshops, which likely contain more vehicles and maintenance facilities. There's also an apparent tank graveyard. Russia grades storage facilities in four categories: /10

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* light - stored in a heated space * medium - stored in a closed unheated space * hard - stored in the open under a canopy * very hard - stored in the open in all climatic zones and under a canopy in industrial or maritime areas (where pollution and sea area is a problem). /11

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What do these mean in practice? Here's some images to illustrate the different types of storage, from light through medium, hard and very hard. /12

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Note that many of these vehicles are very old. Remember that figure of 10,000 tanks? It includes at least 2,800 T-55s, 2,500 T-62s, and 2,000 T-64s - all of which are obsolete. Some many be 60 or more years old and would stand no chance in a Ukraine-style conflict. /13

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Remarkably, some WW2 T-34s are still stockpiled for use in Victory Day parades. Russia used T-62s in conflict as recently as Georgia in 2008, and in exercises as recently as 2018. Some T-62s are said to have gone to Syria to replace the Syrian government's war losses. /14

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It's worth noting that the Russian climate is very unforgiving for mechanical equipment of all kinds. Recorded temperatures have ranged from 45C in summer to -71C in winter. Most regions get varying but usually significant amounts of precipitation year-round. /15

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Let's compare this briefly to how the US does it. The biggest US tank storage depot is the Sierra Army Depot (SIAD) in Northern California, sited on 36,000 acres of desert 4,000 ft (1.2 km) above sea level. Its arid climate makes it ideal for long-term storage. /16

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SIAD stores around 29,000 items of equipment, including some 2,000 M1A1 Abrams tanks - many of which are now likely to go to central and eastern Europe to replace Soviet-era equipment. The high desert climate helps to preserve the vehicles despite exposure to the open air. /17

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Russia, like the US, has detailed manuals for vehicle maintenance. But it's a safe bet that sound maintenance practices have been neglected. In particular, it's likely that no maintenance at all was done for years in the aftermath of the Soviet collapse in the early 1990s. /18

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