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From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-1490327@logan.com>
Subject: Re: [FlyRotary] Re: Fuse Ratings for Wiring??
Date: Sat, 21 Oct 2006 08:42:58 -0400
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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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