May be it helps. UT-2M - Russian primary training aircraft, constructed by Yakovev design bureau. This document is a technical description and maintenance manual for primary trainer, published in 1950.
Hi!
This subtitle can be translated as follows:
"The textbook for technical schools of VVS RKKA, volume 1"
There are two abbreviatives:
VVS - Voenno-Vozdushnye Sily - literally means "Military Air Forces"
RKKA - literally means "Worker's ans Peasant's Red Army"
So, if we compose the full...