A viewer's comment about helicopter rotors leads to the fastener nicknamed the 'Jesus nut'. The heavily secured component holds the main rotor assembly to the helicopter. Its failure would separate the rotor from the aircraft and leave the crew with virtually no chance of survival. The nickname captures the part's mechanical importance and the fatal consequence of losing it in flight.
Notable Point · 7:48-8:18
Why is a helicopter's rotor fastener called the 'Jesus nut'?
A brief aviation aside explains the grim nickname for the critical fastener that retains a helicopter's main rotor.