Sorry for bursting your bubble:
The Soviets had 411 T–28 tanks when the
Germans invaded the Soviet Union in June 1941.
[3](p108) A large majority of these were lost during the first two months of the invasion, many of them abandoned after mechanical breakdown.
Not in their thousands.
also:
In some key weapons systems, however, the Soviet numerical advantage was considerable. In tanks, for example, the Red Army had a large quantitative superiority. It possessed 23,106 tanks,
[73] of which about
12,782 were in the five Western Military Districts (three of which directly faced the German invasion front). However, maintenance and readiness standards were very poor; ammunition and radios were in short supply, and many units lacked the trucks needed to carry supplies.
vs
The German
Wehrmacht had about 5,200 tanks overall, of which 3,350 were committed to the invasion. This yields a balance of immediately available tanks of about 4:1 in the Red Army's favor. The most advanced Soviet tank models, however, the T-34 and
KV-1, were not available in large numbers early in the war, and only accounted for 7.2% of the total Soviet tank force.
The Soviet numerical advantage in heavy equipment was also more than offset by the greatly superior training and readiness of German forces.
So, take your pick.
If you have bad equipment but a lot, it does not necessarily mean an advantage. Saddam found that out - T55 vs Abrams.
The air force was in a similar bad state in 1940 and 1941. The pures ahd made a meal of out VVS.
The tanks which USSR had were the BT series:
During the Second World War, BT-5 and BT-7 tanks were used in the 1939
Soviet invasion of Poland, and in large numbers in the battles of 1941 - during which thousands were abandoned or destroyed.
THAT's where your thousands of tanks come from.
Ivan