RPM turned by YS-140L on Mezlik 16-12?

[Amar Shan]

10 3/4 lbs.  /Amar

-----Original Message-----
From: discussion-request at nsrca.org
[mailto:discussion-request at nsrca.org]On Behalf Of Chad Northeast
Sent: September 20, 2002 4:09 PM
To: discussion at nsrca.org
Subject: Re: RPM turned by YS-140L on Mezlik 16-12?


What is the weight of the model?

Chad
----- Original Message ----- 
From: "Amar Shan" <shan at smartt.com>
To: <discussion at nsrca.org>
Sent: Friday, September 20, 2002 4:12 PM
Subject: RE: RPM turned by YS-140L on Mezlik 16-12?


> Thanks, Wojtek.  15x12W isn't providing enough pull for long uplines on
> 25%, so I'm looking for more diameter.  Based upon
> The suggestions I'm getting, I'm thinking of trying a 16x10.  I'm also
> going to try 30% Cool Power ... some combination of these changes will
> provide satisfactory performance, I'm sure!
> 
> (If not, might be time to build a new primary airplane... :-)
> 
> Amar
> 
> -----Original Message-----
> From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
> On Behalf Of Tomanek, Wojtek
> Sent: Friday, September 20, 2002 10:35 AM
> To: 'discussion at nsrca.org'
> Subject: RE: RPM turned by YS-140L on Mezlik 16-12?
> 
> Amar
> 
> You may also want to try 16x11 on your L, you should get better vertical
> than with 16x12 (either APC or Mejzlik).  Your rpm should be similar or
> better to what you getting on the 15x12W.  It really depends on your
> plane,
> its weight, drag, and other.  On my setup 15x12W was better for a more
> constant speed while the 16x11 had better vertical pull and that is what
> I
> am using on my L.
> 
> Wojtek
>    
> 
> -----Original Message-----
> From: Troy Newman [SMTP:tanewman at qwest.net]
> Sent: Thursday, September 19, 2002 6:07 PM
> To: discussion at nsrca.org
> Subject: Re: RPM turned by YS-140L on Mezlik 16-12?
> 
> Well If you're getting 8300-8500 on 25% with the 15-12W that's
> about
> all I ever got out of an a 140L.......I have never run the Mezlik props
> but
> the 16-12 APC was too much load for an "L" unless I was running 30%+
> 
> 
> I think your motor is probably just fine....Another thing peak
> it
> out and run it just about 300 rpm short of peak. This will be on the
> rich
> side. But it will help keep it cool. 
> 
> If you want more power got to some Cool Power 30% heli
> performance
> fuel....The "L" will like it. In fact it will love it just like the
> DZ's.....
> 
> 
> I'm using this fuel in everything now. Horizon recommends this
> fuel
> for the Saito motors...and I'm even running it sport planes with
> .46's......This is really good fuel...I don't know of anybody that has
> tried
> it and not liked it.
> 
> 
> Troy
> ----- Original Message ----- 
> From: Amar Shan <mailto:shan at smartt.com>  
> To: discussion at nsrca.org <mailto:discussion at nsrca.org>  
> Sent: Thursday, September 19, 2002 1:38 PM
> Subject: RE: RPM turned by YS-140L on Mezlik 16-12?
> 
> Oops, forgot a couple of key details!
> 
> Running 25% Cool Power - at sea level.
> 
> I did run an APC 15-12W - it was tach'ing about
> 8300-8400 on
> the ground.  I'm getting much better performance out of the Mezlik
> 16-12,
> even though it's only turning ~7800-8000 on the ground.
> 
> The engine has fewer than 2 dozen flights on it since a
> Performance Specialities (Verano/Shadel) rebuild.  (It didn't have much
> more
> than that number before the rebuild, either.  Rebuild was done because I
> sent it in with a complaint of difficulty starting, not because of crash
> damage).
> 
> Amar
> 
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