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While I agree (and indeed use my CB in much the same manner - particularly when trouble shooting), it still seem strange that the manufacture of those type aircraft would spend considerable costs to use 10's of dozens of circuit breakers in each aircraft (and perhaps hundreds of aircraft manufactured) where a much cheaper/lighter fuse would do the job (just pull the fuse for maintenance). But, again this is an area where each can choose the approach which makes them feel more comfortable.
I certainly agree that a fuse of CB can do its fundamental purpose of protecting a wire from cooking - so functionally its a wash, cost and complexity do vary between the two approaches. But, I think this again brings it back to what makes you feel comfortable when flying behind your rotary engine.
Going out to fly this wonderful morning
Ed
----- Original Message ----- From: "David Staten" <Dastaten@earthlink.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Saturday, October 21, 2006 12:49 AM
Subject: [FlyRotary] Re: Fuse Ratings for Wiring??
Ed Anderson wrote:
I can not help but wonder why these type of high value aircraft use circuit breakers rather than fuses. Circuit breakers are in essence no more than a mechanical switch (we all use those I believe) activated by heat rather than a finger. But, this debate could (has and will) continue into the future, for sure.
For the planes that have a gajillion and one circuits, the breakers can serve as a switch for maintenance or troubleshooting of a portion of a component system. The switch on the panel may turn the whole system ON or OFF.. an individual actuator or motor may have its own breaker.. for example..
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