[Andy Fletcher]

Hi Franklin,

Aviation Regiments underwent various changes of establishment during the war.

Early in the war Rgts only had 2 Eskadrilya of 9 aircraft (a/c)

Later in the war a new TO&E was adopted. I believe "standard" organisation mid war was 32 aircraft, organised into 3 Eskadrilya of 10 a/c each (3x10) and a HQ flight of 2 a/c (it is possible that the Eskadrilya still had 9 a/c and the HQ flight 5 a/c, I've been unable to discover which is correct).

Some of our Russian experts will probably be able to tell you more.
Online translation of Squadron gives Эскадрон

Regards

Andy Fletcher