Also known as: syn.
SYN has various meanings in the Telecommunications category. Discover the full forms, definitions, and usage contexts of SYN in Telecommunications.
The state of an engine when it is running but not delivering power to move the vehicle or aircraft. \n\nTo turn over slowly without providing enough power to move the vehicle or aircraft. \nExample: After starting a piston engine from cold, it is good practice to allow it to idle for a short time before opening the throttle wide.
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