[NSRCA-discussion] YS170 at 96dB

[adriancwong at earthlink.net]

If your plane is within the 5 Kg limit, 7,300 to 7,400 is all you need. My mid throttle is only at 6.200, and I rarely goes above 3/4 throttle.

-----Original Message-----
>From: colin chariandy <cchariandy at yahoo.ca>
>Sent: Aug 4, 2009 10:07 PM
>To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
>Subject: Re: [NSRCA-discussion] YS170 at 96dB
>
>Wow that's low. I think "Weak signals" is asking for 96dB so I should'nt have to dial it back much.
> 
>Thanks much.
>
>--- On Tue, 8/4/09, AtwoodDon at aol.com <AtwoodDon at aol.com> wrote:
>
>
>From: AtwoodDon at aol.com <AtwoodDon at aol.com>
>Subject: Re: [NSRCA-discussion] YS170 at 96dB
>To: nsrca-discussion at lists.nsrca.org
>Received: Tuesday, August 4, 2009, 10:03 PM
>
>
>
>We have been doing some testing here in Sacramento over the last couple weeks.  Looks like 73-7400 on 30% is about the max to make 94db or slightly less.  Make sure the prop tips are clean, not chipped or dinged.  It makes a difference.
> 
>Don
> 
>
>In a message dated 8/4/2009 6:58:34 P.M. Pacific Daylight Time, cchariandy at yahoo.ca writes:
>
>
>
>
>
>Does anybody know what rpm will pass a noise test for a YS170 turning 18.1X11? 
> 
>Colin.
>
>
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