soviet planes and 4.1x...

[1984]

another interesting document - альбом "основные работы новосибирского филиала института летных исследований, выполненные в I полугодии 1942 года"...

page 2 - "improvement of flight data of yak-7" (1942)... in fact it's illustration, for example, of text from Stepanec or other documents which i reading, about aerodynamic changes'42 (shows etalon performance of yak-7(b) m-105pa, in compare with plane before changes, ie around 470 vs. 495 kph at sl) plus noted what gives forced m-105 with 1040 mm (plane showed 520 kph, although, pf in all sources have 1050, so, could be LITTLE more)...

page 3 - "improvement of flight data of lagg-3" (1941)... well, looks like experimental lagg-3 with sn 31211062 and 490 kph at sl vs. lagg-3 with 3121715 and 457 from this table (later about this)...

other works, mainly, for interest and have no practical meaning...