YS 91 ac - Check valves

[Ron Van Putte]

jim ivey wrote:

> This is not enough saftey margin to warrant the cost of two valves.Buy 
> two and keep one for replacement when in doubt.

All this discussion about redundancy and safety margins reminds me of 
the old saying about twin engine airplanes:  When one engine quits, you 
have just enough power left to get you to the site of the crash.

Ron Van Putte


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