Nats RPM check

[Woodward James R Civ 412 TW/DRP/ACQ]

Notice the subject line change :)

Why don't you measure the RPMS at the same time you take the sound
measurement in the finals?  You could get prop, rpm, noise, engine, pipe,
fuel, combos all at once.
Jim


-----Original Message-----
From: David Harmon [mailto:k6xyz at attbi.com] 
Sent: Wednesday, May 21, 2003 10:48 AM
To: discussion at nsrca.org
Subject: RE: 140FZ RPM's?

Ahhhh....someone that is willing to say it like it is! Thanks Ron.
I've NEVER been able to get similar rpm's from my engines even when
right out of the box from being repaired.
Same prop & fuel and on a test stand too.

Dave

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of Ron Van Putte
Sent: Wednesday, May 21, 2003 9:24 AM
To: discussion at nsrca.org
Subject: Re: 140FZ RPM's?




Bob Kane wrote:

> Just measured it the other day, 8400rpm, Mejlik 16X10, Powermaster
> 30%, OS F plug, temp about 70, 600 feet above sea level. I have two 
> 140FZ's and they run within a few RPM of each other.
>  
> I was thinking for kicks, it would be fun to measure motor RPM's at
> the NATS with the same tach on the same day and publish the results. 
> Would remove a lot of variables.
>

It looks as though we have a volunteer!  

Seriously, I agree.  It would be nice to remove some of the variables, 
like altitude, temperature, bad memory, BS and hidden agendas and see 
just how some of these engines compare.

Ron Van Putte


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