Definition
The set of procedures a pilot must follow when flying under Instrument Flight Rules and experiencing a two-way radio communications failure. The pilot continues the flight using prescribed rules in 14 CFR 91.185 covering route, altitude, and timing of the approach, allowing ATC to anticipate the aircraft's intentions without further communication.
Plain English
If your radios stop working while flying on an instrument flight plan, you don't just guess what to do. There are specific rules that tell you what route to fly, what altitude to hold, and when to begin your approach, so controllers can predict where you'll be and keep other traffic clear of you.
Context Anchor
Seen in instrument training and FAA communication-failure guidance, especially when discussing what to do after losing radio contact while flying under IFR.
Derivation
"No-radio" (often shortened to NORDO in ATC slang) simply means operating without functioning two-way radio communications. The phrase combines the IFR flight rule context with the specific failure condition, so the term names exactly what it describes: instrument flying when the radios are out.
Why Pilots Care
Maintains traffic separation and allows the flight to reach its destination without ATC instructions.
Grounding Statement
Picture an IFR aircraft in cloud with silent radios: the pilot cannot ask for help by voice, so the flight must follow the published lost-communication plan that controllers are expecting.
Intuition Check
No-radio does not mean “make it up because no one can hear you.” It means “follow the specific communication-failure procedures so your actions remain predictable.”
Example Sentence 1
After losing both radios in the clouds, the pilot transitioned to IFR no-radio operations, continuing on the last assigned route and squawking 7600.
Example Sentence 2
ATC had pre-coordinated the arrival because the flight was operating under IFR no-radio procedures.