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<blockquote data-quote="John Roberts" data-source="post: 40805" data-attributes="member: 126">Re: Aircraft sound systemsNot to ruin your joke, but aircraft engineers are highly motivated to get reliability engineering and component certification right. Aircraft tend to fall out of the sky when important systems fail.&nbsp; IIRC Murphy&#039;s law cam from the aircraft industry wrt components that were poorly engineered and could be installed backwards. Any competitive business will be motivated to manage input costs. I had my share of experiences with purchasing employees, motivated by rewards if they reduced parts cost, pushing inferior components on me to approve. It got so bad at one point I made purchasing bring in a couple thousand pots to do an actual production line test with them. Then the purchasing guy caused an ugly scene and started arguing with me in the factory, when the parts were crap and didn&#039;t work (like I predicted). The factory had to unsolder and replace all the pots with good ones so we could use the boards.&nbsp;&nbsp; The simple hollow tube headphones worked adequately for the day, and were cheap as dirt. I thought there were aircraft headphones you can buy (noise canceling), and adapters to plug into airplane audio. Check the airline flight magazines. That&#039;s where I&#039;d try to sell them.&nbsp; JR</blockquote>

[QUOTE="John Roberts, post: 40805, member: 126"] Re: Aircraft sound systems Not to ruin your joke, but aircraft engineers are highly motivated to get reliability engineering and component certification right. Aircraft tend to fall out of the sky when important systems fail. IIRC Murphy's law cam from the aircraft industry wrt components that were poorly engineered and could be installed backwards. Any competitive business will be motivated to manage input costs. I had my share of experiences with purchasing employees, motivated by rewards if they reduced parts cost, pushing inferior components on me to approve. It got so bad at one point I made purchasing bring in a couple thousand pots to do an actual production line test with them. Then the purchasing guy caused an ugly scene and started arguing with me in the factory, when the parts were crap and didn't work (like I predicted). The factory had to unsolder and replace all the pots with good ones so we could use the boards. The simple hollow tube headphones worked adequately for the day, and were cheap as dirt. I thought there were aircraft headphones you can buy (noise canceling), and adapters to plug into airplane audio. Check the airline flight magazines. That's where I'd try to sell them. JR [/QUOTE]

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