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From: "paul" <sqpilot@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-521915@logan.com>
Subject: Re: [FlyRotary] Re: PM alternator/generator with EWP
Date: Sun, 7 Nov 2004 20:11:45 -0600
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----- Original Message ----- 
From: "Ernest Christley" <echristley@nc.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, November 07, 2004 6:15 PM
Subject: [FlyRotary] Re: PM alternator/generator with EWP


> rijakits wrote:
>> Again, my question:
>>>From where do you have the idea, that belts are the major prolblem?
>>
>> Thomas J.
>>
>>
>
>
> Not a major problem...but a potential softspot in any installation. They 
> are very susceptible to heat and abrasion.  Things that can be engineered 
> out with a mass production car line, but are somewhat iffy in a one-off 
> plane installation.
>
> Added to that is the weight of two pulleys, a belt or two, and mounting 
> hardware, and you possibly have something that is quite a bit heavier than 
> necessary...especially considering that the mount and housing are built 
> studier than would be necessary without the sideload and vibration caused 
> by a belt.
>
> I believe that a direct-drive, PM generator could be fitted to a 13B. It 
> could possibly be lighter, occupy less room and be more reliable.  If the 
> EWP is used, the total installation would be simpler, as one of the 
> reasons for a belt have been eliminated already.
>

Hi, Ernest....it would be wonderful for us canard builders to be able to get 
rid of the belts, as they are located very close to our aileron push-pull 
tubes. The loss of a belt could also mean the loss of aileron control. 
Converting to an EWP is of course, easy.  If I can find a way to eliminate 
the belt to an alternator, I will be a happy camper indeed !!!!  Please 
continue sharing any information you may find.  Thanks for sharing your 
ideas.  Paul Conner, 13b powered SQ2000 canard
> -- 
> http://www.ernest.isa-geek.org/
> "This is by far the hardest lesson about freedom. It goes against
> instinct, and morality, to just sit back and watch people make
> mistakes. We want to help them, which means control them and their
> decisions, but in doing so we actually hurt them (and ourselves)."
>
>
>>>  Homepage:  http://www.flyrotary.com/
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>