exercise study
військова гра; семінар; навчальне заняття; тренування
військова гра; семінар; навчальне заняття; тренування
foreign area and language study
aircraft refuel and rearm study
accident data reporting study group
aerodrome meteorological observing systems study group
aircraft classification number study group (ACNSG)
aircraft noise and design effects study (ANDES)
aircraft noise design effects study
aircraft type designation study group
automatic air reporting study group
aviation medicine study group on cardiovascular requirements