Quote:
Originally Posted by Joe K
...The usual mode of failure I've seen for the 4 blade is failure of the rivets...
It might be possible to improve one's chances if they replaced the rivets with high strength bolts?
Just thinking out loud here.
Joe K
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The rivets did indeed let loose and cost me a new radiator. Almost within weeks, same thing happened to my friend, only he caught it before it took out his radiator.
He took both fans, had the blades inspected for cracks, and there were none. He replaced the rivets with high strength aircraft bolts with self locking nuts. Both fans are still being used with great success.