Despite being called 'black boxes', Flight Data Recorders (FDR) and Cockpit Voice Recorders (CVR) are coated in heat-resistant, high-visibility bright fluorescent orange paint and fitted with reflective tape. They also house an underwater locator beacon that emits an acoustic ultrasonic ping for 30 to 90 days once submerged.
Despite being called 'black boxes', Flight Data Recorders (FDR) and Cockpit Voice Recorders (CVR) are coated in heat-resistant, high-visibility bright fluorescent orange paint and fitted with reflective tape. They also house an underwater locator beacon that emits an acoustic ultrasonic ping for 30 to 90 days once submerged.
| Parameter | Recorded Benchmark | Operational Classification |
|---|---|---|
| Subject Airframe / Component | FDR & CVR Systems | Commercial Transport Aviation |
| Core Metric / Measurement | Fluorescent Beacon Orange | Verified Physical Benchmark |
| Primary Technical Field | Avionics & Safety | Aerospace Engineering |
| Primary Source Citation | NTSB & ICAO Annex 6 Standards | Civil Aviation Registry / OEM Archives |
| Calendar Day Index | Day #18 of 365 | Annual Daily Dispatch |