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"1. EF-TYPE AIRCRAFT DEVELOPMENT AT ZAVOD NO. 1 IN PODBEREZHE 2. OBSERVATIONS AT MOSCOW/RAMENSKOYE, MOSCOW/SALAREVO, AND BORKI AIRFIELDS"

for modification. TsAGI then returned the plans to the designers, and one or two construction models ... the aircraft were then forwarded to LIT for further tests. After the major modifications were Approved ... In warmer weather or during ea;_rtly thawIng periods, the runways and taxiways were dusted so as to permit ...