Study on the Design Method of Small Black Box for Aircraft that Satisfies Extreme Environment Requirements

The black box of an aircraft is a device that records its speed, altitude, navigation, and engine characteristics. It must protect important data recorded during flight, even under the extreme environmental conditions that occur in the event of an aircraft accident. Therefore, black box devices must be developed according to the ED-112A standard, which addresses the requirements for extreme environments. The ED-112A standard defines these requirements by considering impact shock, penetration resistance, static crash, high/low temperature fire, deep-sea pressure, seawater immersion, and fluid immersion. In this study, we propose a method to develop a black box device that simultaneously satisfies extreme high- and low- temperature conditions and penetration resistance by designing it with miniaturized and lightweight characteristics and verifying its performance.