OS 1.60 Setup

[Wayne Galligan]

Vincent,

I think I have a pretty good setup, pipe, prop, fuel at this time.  
It pulls 8100rpm, 17X13 std APC, 15% Cool Power, OS "F" plug,  Karl Mueller header, AreoSlave c.f. pipe(3.5 oz proto-type).

This was just last Sunday in 95 degree heat at 675' altitude med to high humidity.
I found with this new pipe I have been trying that I had to richen up the low end and run the high
end just a click rich from peak rpm.  The braking was good and the transition is very smooth and not peaky.

My airplane weights 10lbs 4oz. and its a pretty clean aerodynamically.  This prop(17x13) may not work on 
a more dragy airplane then some and I have been using the 17x12 APC std in the past with this engine.
I am sure on windy days I would have to go to the 3 blade prop or the 17x12.  A 17x10 and even the 17x12N is not
enough  prop for my setup.  Yours may vary do to the setup so don't take this as the gospel in setup.

Wayne Galligan
  ----- Original Message ----- 
  From: vicenterc at comcast.net 
  To: discussion at nsrca.org ; discussion at nsrca.org 
  Cc: wgalligan 
  Sent: Wednesday, August 04, 2004 8:29 AM
  Subject: RE: OS 1.60 Setup


  Wayne:

  Isn't 17x13 too much load for the OS 140 RX?  I remember trying that prop last summer.  In KC summer is hot and very humid.  You can cut the air with a machete.  I remember trying the 17x12 Standard with the same problem.  The best 2 blade was the 17x10 Standard.  Finally, I got the 3 blade re-piched prope from Dave and I love it.  I use OS F 20% nitro 18% Syn. oil 

  Vicente Bortone


    -------------- Original message -------------- 

    I am running a 17x13 APC on my OS 1.40 and it is smooth, quite and down line braking is quite good in comparison to a couple of three blade props I have tried. It has a soother sound to it then a Bolly 16.5x12 and GSW 16x11 c.f. props.


    Wayne Galligan 


    -----Original Message-----
    From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org] On Behalf Of Bob Pastorello
    Sent: Tuesday, August 03, 2004 7:04 PM
    To: discussion at nsrca.org
    Subject: Re: OS 1.60 Setup


    Two things on my list for this weekend at Lubbock....the 17 x 13, and the 4 blader...I'll update. Everyone I've talked to says the 13 is pretty sweet!! Anybody run one?


    Bob Pastorello
    rcaerobob at cox.net
    www.rcaerobats.net



      ----- Original Message ----- 

      From: Brian Young 

      To: discussion at nsrca.org 

      Sent: Tuesday, August 03, 2004 7:01 PM

      Subject: Re: OS 1.60 Setup


      Bob, have you tried the 17x13 on that setup?

      Bob Pastorello <rcaerobob at cox.net> wrote: 

      Based on all the info, and questions I've gotten, here's a narrative page (no pics, they're elsewhere in my site) explaining the WHOLE deal, with all the "tricks"....[there aren't any]

      http://www.rcaerobats.net/OS160_Setup.htm


      Bob Pastorello
      rcaerobob at cox.net
      www.rcaerobats.net


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