operation conditions of an airscrew

airscrew reduction gear

airscrew reversing gear

parameter of the geometric characteristics of an airscrew

reverse pitch of airscrew

airscrew

airscrew blade

airscrew characteristics

airscrew diameter

geometric characteristics of an airscrew

pusher airscrew

clandestine operation; covert operation

humanitarian operation; humanitarian relief operation (HUMRO)

PZ operation (pick-up zone operation)

noncombatant evacuation operation (NEO); non-combat evacuation operation

ambient conditions

chemical and biological conditions

conditions of reduced visibility

favorable conditions

physiographic conditions

simulated combat conditions

supervise the observation of armistice conditions

tactical conditions

firing conditions

meteorological conditions of fire

under nonnuclear conditions

under nuclear conditions

ditching conditions

ever-changing conditions

mission abort conditions

actual conditions meteorological report

ballistic and atmospheric conditions

accident conditions