вільна / незбурена атмосфера
accident-free flying / mishap-free flying
mishap-free flying / accident-free flying
atmosphere control equipment
trajectory within a standard atmosphere
turbulent atmosphere area
adiabatic atmosphere
atmosphere
atmosphere sounding
Special Report on Aviation and the Global Atmosphere
ambient atmosphere
dense atmosphere
disturbed atmosphere
disturbed atmosphere flight
dusty atmosphere
Earth’s atmosphere
high-density atmosphere
life-sustaining oxigen-nitrogen atmosphere
low-density atmosphere
static ceiling (the highest altitude at which the helicopter is capable of hovering in standard atmosphere) / hover ceiling
upper atmosphere
International Standard Atmosphere (ISA)
jet standard atmosphere (JSA)
standard atmosphere
atmosphere-bearing celestial body
contact-free war
contamination-free
fallout-free
free fall
free fall air drop
free fire zone
free mine
free naval control of shipping