importantSYS.SOURCE: Hackaday• 2026-09-07T17:44:33Z

Inflight Blade Monitoring System Using Radioactive Material in CH-53 Helicopters

#radioactive material #helicopter technology #blade monitoring #aviation safety

The CH-53 helicopter's Inflight Blade Monitoring System (IBIS) uses radioactive Strontium-90 to detect blade cracks by releasing ionizing radiation when pressure leaks occur, providing real-time safety monitoring without electronic components. The system remains in use despite debates over radiation safety and has been adapted for modern composite blades while older models still rely on the nuclear method.

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