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- Jesus_nut abstract "Jesus nut or Jesus pin is the main rotor retaining nut that holds the main rotor to the mast of some helicopters, such as the UH-1 Iroquois helicopter; or more generally is any component which represents a single point of failure with catastrophic consequences.The term jesus nut may have been coined by American soldiers in Vietnam; the Vietnam War was the first war to feature large numbers of soldiers riding in helicopters. If the Jesus pin were to fail in flight, the helicopter would detach from the rotors and the only thing left for the crew to do would be to pray to Jesus. Real examples of the Jesus pin failing are few and far between. However the pin must be checked before the flight. Some more recent helicopter systems do not have a Jesus nut. More recently, in generic engineering the concept has widened to include any single component of a system whose failure would cause catastrophic failure of the whole system.In literature the term Jesus Nut was used in Chickenhawk by Robert Mason, a narrative about his experiences in the Vietnam War. A Jesus Nut figures prominently in the climax of Clark McCann’s thriller Black Air.The Rattler/Firebird Association is a Vietnam War veterans organization. It awards a chrome plated Jesus nut to the member who traveled the longest distance to their reunions.Mountain bikers often use the term to describe the screw that holds the rear wheel pivot bar in place on a rear suspension bike[citation needed]. This bar holds the back suspension onto the frame of the bike. If the screw falls out, the pivot bar tends to slide out, leading to catastrophic rear-wheel failure, ending in unavoidable loss of the back wheel. Since the pivot bar will only come out under heavy vibrations, it tends to fail at high speed, therefore leading to serious injury.Another use for the term is found in rock climbing, in which it refers to the first piece of protection placed on a pitch[citation needed]. This piece must be placed to resist an outward pull as well as a downward pull in order to avoid the possibility of a "zipper", in which the outward pull on the rope from the belayer arresting a falling climber pulls protection pieces from the bottom up. In addition, the Jesus Nut prevents the possibility of a factor two fall onto the belay anchor.Jesus nut is also used in reference to the nut on the front of the recoil mechanism on some artillery pieces[citation needed]. Should this nut fail, the gun tube will come out of battery upon firing, potentially leading to death for the gun crew.A derivative term used in radio-controlled helicopters is the "Jesus Bolt", which refers to a bolt whose function is analogous to the Jesus nut in a full size helicopter[citation needed].".
- Jesus_nut thumbnail Jesus_nut.jpg?width=300.
- Jesus_nut wikiPageID "2389820".
- Jesus_nut wikiPageRevisionID "606619519".
- Jesus_nut hasPhotoCollection Jesus_nut.
- Jesus_nut subject Category:Fasteners.
- Jesus_nut subject Category:Helicopter_components.
- Jesus_nut type CausalAgent100007347.
- Jesus_nut type Fastener110080337.
- Jesus_nut type Fasteners.
- Jesus_nut type LivingThing100004258.
- Jesus_nut type Object100002684.
- Jesus_nut type Organism100004475.
- Jesus_nut type Person100007846.
- Jesus_nut type PhysicalEntity100001930.
- Jesus_nut type Whole100003553.
- Jesus_nut type YagoLegalActor.
- Jesus_nut type YagoLegalActorGeo.
- Jesus_nut comment "Jesus nut or Jesus pin is the main rotor retaining nut that holds the main rotor to the mast of some helicopters, such as the UH-1 Iroquois helicopter; or more generally is any component which represents a single point of failure with catastrophic consequences.The term jesus nut may have been coined by American soldiers in Vietnam; the Vietnam War was the first war to feature large numbers of soldiers riding in helicopters.".
- Jesus_nut label "Jesus nut".
- Jesus_nut sameAs m.078lby.
- Jesus_nut sameAs Q6188305.
- Jesus_nut sameAs Q6188305.
- Jesus_nut sameAs Jesus_nut.
- Jesus_nut wasDerivedFrom Jesus_nut?oldid=606619519.
- Jesus_nut depiction Jesus_nut.jpg.
- Jesus_nut isPrimaryTopicOf Jesus_nut.
