допускаемое расстояние до препятствия

clearance n aerodrome control tower clearance air traffic control clearance amended clearance approach clearance baggage clearance border flight clearance clearance antenna clearance aspects clearance bar clearance bar light clearance control clearance distance clearance facilities clearance formalities clearance for straight-in approach clearance for takeoff clearance guidance clearance guidance sector clearance limit clearance margin clearance of goods clearance of obstacles clearance of the aircraft clearance over the threshold clearance procedure clearance to enter customs clearance customs formalities clearance deliver the clearance departure clearance descent clearance en-route clearance ensure clearance ensure safe clearance entry clearance expedite the clearance export clearance facilitate rapid clearance of fits and clearances card fits and clearances table flight clearance flight plan clearance further clearance get clearance health clearance holding clearance initial descent clearance instrument clearance landing clearance landing clearance confirmation minimum wheel clearance misjudge clearance misjudged clearance obstacle clearance obstacle clearance altitude obstacle clearance height obstacle clearance limit obstacle clearance line obstruction clearance obtain a clearance operational clearance outbound clearance pending clearance preserve the clearance request clearance rotor-to-tail boom clearance runway clearance light safe clearance safe obstruction clearance safe terrain clearance safety clearance span clearance start-up clearance takeoff clearance takeoff clearance confirmation tax clearance certificate taxi clearance taxiways clearance terrain clearance terrain clearance indicator threshold wheel clearance vertical clearance wing clearance light wing tip clearance wing tip clearance line

obstruction n aerodrome obstruction chart boundary obstruction light eliminate obstruction obstruction clearance obstruction lights obstruction marking obstruction marking criteria safe obstruction clearance unmarked aerodrome obstructions