Air traffic control service for area navigation equipped aircraft operating in the United States national airspace system.
|Corporate Author:||United States.|
[Washington, U.S. Govt. Print. Off.] 1970.
Air traffic control
Air traffic control /
Includes, as appendix 1, its Advisory circular AC 90-45.
"Order 7110.2, operations of pictorial display/course line computer (PD/CLC) equipment, dated August 27, 1965, is canceled."
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||University of Michigan|