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From: david mccandless <daval@iprimus.com.au>
Subject: Re: [FlyRotary] Re: Racemate Alternator
Date: Tue, 14 Jun 2005 07:40:18 +0800
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
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Hi Bill,
my take on this is that the present ratio is not suitable for constant 
engine rpm at 6000, I think we should be looking at slowing the W/P/ 
alternator down to about 4000rpm. The Auto Electrics people say that 
car alternators are rated to give their max power at 3-4000 rpm. As for 
the W/P, it is designed to cool at the minimum road speed with all 
loads drawing on the engine,  ie,  air con, lights etc. so 3-4000 is 
fine for the W/P
I am not sure what you mean by a 'cup on the flywheel'. BR, Dave McC

On 13/06/2005, at 10:22 PM, WRJJRS@aol.com wrote:
> n, If we make the e-shaft pulley bigger than we can make the WP pulley 
> bigger and still have the same ratio. It may be inconvenient. We might 
> see if Racemate can supply a cup to mount on the flywheel.
> Bill Jepson
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Hi Bill,

my take on this is that the present ratio is not suitable for constant
engine rpm at 6000, I think we should be looking at slowing the W/P/
alternator down to about 4000rpm. The Auto Electrics people say that
car alternators are rated to give their max power at 3-4000 rpm. As
for the W/P, it is designed to cool at the minimum road speed with all
loads drawing on the engine,  ie,  air con, lights etc. so 3-4000 is
fine for the W/P

I am not sure what you mean by a 'cup on the flywheel'. BR, Dave McC


On 13/06/2005, at 10:22 PM, WRJJRS@aol.com wrote:

<excerpt><fontfamily><param>Arial</param><x-tad-bigger>n, If we make
the e-shaft pulley bigger than we can make the WP pulley bigger and
still have the same ratio. It may be inconvenient. We might see if
Racemate can supply a cup to mount on the flywheel.</x-tad-bigger></fontfamily>

<fontfamily><param>Arial</param><x-tad-bigger>Bill Jepson</x-tad-bigger></fontfamily></excerpt>
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