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Англійський тезаурус
coordination level
військ., логіст.	Flight level determined in order to reduce the risks of collision between slow and fast aircraft. There are two different numbers, depending on whether it is located before the IFF SWITCH OFF LINE: 150 feet, or behind the IFF SWITCH OFF LINE: 500 feet. Slow aircraft whose speed is 200 knots or below have to fly below that level, and fast aircraft have to fly above that level. (FRA)
США	A procedural method to separate fixed-and rotary-wing aircraft by determining an altitude below which fixed-wing aircraft normally will not fly (JP 3-52)