[TheForge] RE: Quesiton about a weird event

[Jeffrey Polaski]

I can see this happening with a shaft that has lot of stress on it...
most of the strength of the shaft is "in the surface". Putting a good
nick in the surface of a shaft loaded almost to its limit could cause
catastrophic failure. Especially where things are designed to run closer
to their limit, like a helicopter. 


Jeff Polaski
Research and Graduate Studies Webmaster
University of California, Irvine
http://www.rgs.uci.edu/
949.824.6363
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Sent: Wednesday, June 07, 2006 9:03 AM
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Subject: [TheForge] RE: Quesiton about a weird event



 While in the military I heard a similar story.  On the double prop
choppers (chinooks or CH-46)  there is a timing shaft runing between the
two props. One of the crew told me that while in flight it was possible
that just touching the shaft with a piece of metal or some thing would
cut it allmost instantly, like being on a laithe.  sounds like with the
heat build up and the perfect cut some thing similar may have happened.
just my guess.

Stu
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