Mailing List flyrotary@lancaironline.net Message #52396
From: Andrew Martin <andrew@martinag.com.au>
Subject: Re: [FlyRotary] Re: simple dyno
Date: Sat, 2 Oct 2010 20:12:39 +0800
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
George, 
screenshot attached.
has 2 parts, enter length of bar and rpm attained and it will output hp & torque for that rpm.
or enter desired hp at desired rpm and it will output size of bar required to achieve.
I don’t think you should expect too much of this as its not really a dyno, other variables will probably probably need to be accounted for, like changes in QFE.
What I think it will do is allow any changes made in an installation to be quickly checked to see they are positive, probably not quite an issue for those with a flying airframe. I expect first engine start sometime next year so still some time to check if all this is valid.


Andrew

On Sat, Oct 2, 2010 at 2:30 PM, George Lendich <lendich@aanet.com.au> wrote:
Andrew,
The maths is easy enough, but what inputs do you load into the spreadsheet. My concern is if you put in too high a static RPM and too high a HP number your going to get something rather useless.
George (down under)

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