висота нижньої межі хмар
operational ceiling (service ceiling)
static ceiling (the highest altitude at which the helicopter is capable of hovering in standard atmosphere) / hover ceiling
absolute ceiling (AC)
ceiling (aeronautics)
service ceiling
ceiling lining
ceiling
ceiling altitude
zero ceiling
hover ceiling
static ceiling
low ceiling
operating ceiling
unlimited ceiling
smoke ceiling
ceiling in rank
ceiling height
manpower ceiling
personnel ceiling
maximum ceiling
minimum military requirements (MMR)
minimum pressure drop
minimum supply level
use of minimum force
minimum risk level (MRL)
minimum safety distance (MSD)
minimum off-route altitude
minimum flow valve
minimum
minimum deterrence
minimum operational performance standards
area minimum altitude