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From: "George Lendich" <lendich@optusnet.com.au>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-951515@logan.com>
Subject: Re: [FlyRotary] Re: Sized 13b
Date: Sat, 21 May 2005 09:45:51 +1000
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Ernest,
What's this about a PSRU - what have you been designing ?
George ( down under)

> Ed Anderson wrote:
> 
> >
> > That is one hunk of a PSRU you are working on Ernest - have you 
> > calculated how it would affect your W&B?
> 
> 
> Very badly.  I didn't run the numbs so much as run FROM the numbers!
> 
> It's heavy, 27lbs  for just the gearbox right now.  But my biggest 
> chance for weight reduction is in the bellhousing, and there are still a 
> lot of other stuff to work out.  I'm looking to save weight up front by:
> 
> - using the Harley Davidson alternator
> -keeping the intake very light (we talked about using .025 stainless)
> -moving the waterpump and radiators behind the point of aerodynamic lift
> -very light muffler (probably around 7 lbs)
> -deburr and trim off any piece of the engine that isn't necessary.  
> Those extra studs you have would have to go on my installation.  The 
> engine lift attach point on the front housing will see a bandsaw when I 
> tear the engine down.
> -I'm still looking for more savings (and aluminum side housings are 
> still not out of the question).
> 
> -- 
>          ,|"|"|,                                    |
> ----===<{{(oQo)}}>===----        Dyke Delta         |
>         o|  d  |o          www.ernest.isa-geek.org  |
> 
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