current certified noise level

noise floor; noise level

nuclear certified delivery unit

nuclear certified delivery vehicle

certified aerodrome

alternating current-direct current (AC-DC) converter

calculated noise level

certificated noise level

certification noise level database

standard noise level

effective perceived noise level

level flight noise requirements

maximum noise level

maximum permissible noise level

maximum tone corrected perceived noise level

measured noise level

monitored noise level

noise level

noise level as a function of take-off mass

noise level radiation

noise pressure level

peak perceived noise level

perceived noise level

permissible noise level

depot maintenance (beyond O and I level activities, performed in an industrial-type facility) / D-level maintenance

surveyor's level (surveying level, tbc)

alternating current

current doctrine

current flight plan (CPL)

current intelligence

current operations

current situation

current velocity