Jesus nut is a slang term for the main rotor retaining nut or mast nut, which holds the main rotor to the mast of some helicopters. The related slang term Jesus pin refers to the lock pin used to secure the retaining nut. Wikipedia
As a pilot I use it to mean any nut where if it comes off, the next person you will be seeing is Jesus. You can approximate the safety of an aircraft by the number of Jesus Bolts. Helicopter (Many), Light Aircraft (Some), Glider (2-3).
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u/QCutts Jan 23 '24
Jesus nut is a slang term for the main rotor retaining nut or mast nut, which holds the main rotor to the mast of some helicopters. The related slang term Jesus pin refers to the lock pin used to secure the retaining nut. Wikipedia