In the years 1935 - 1937 the importance of the Air Force Officer Cadet School increased. The School premises were expanded and prepared to offer a longer cycle of study for both pilots and observers. The Department of Sciences was again incorporated into the School structure. Now the School Battalion included four training squadrons. Starting from 1935 the course of study was extended to three years and it comprised: Year I - basic military training, Years II and III - specialized training in the two groups of: pilots and observers.
