Though I can imagine that the figure of total German planes were at 2000 those are the figures let out in the west. In the east the figure show slightly higher numbers.

So I can understand why and where you get your doubts.

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The war against Russia will be such that it cannot be conducted in a knightly fashion. This struggle is one of ideologies and racial differences and will have to be conducted with unprecedented, unmerciful and unrelenting harshness. -Adolf Hitler