(ав.) (абсолютна) мінімальна висота прольоту перешкод
obstacle clearance limit (OCL)
obstacle clearance height
obstacle clearance panel
obstacle clearance surface
obstacle clearance takeoff
antiboat obstacle
antipersonnel obstacle
antipersonnel obstacle breaching system (APOBS)
antitank obstacle
antivehicular obstacle
artificial obstacle
barbed wire obstacle
beach obstacle
composite obstacle
concrete obstacle
demolish an obstacle
incendiary obstacle
log obstacle
man-made obstacle
mine obstacle
natural obstacle
obstacle belt/ course
obstacle development
obstacle race
obstacle(s)
parachute obstacle
passive obstacle
physical obstacle
portable obstacle
protective obstacle
reactive obstacle
river line obstacle