OS 1.60 Setup

[vicenterc at comcast.net]

Wayne:
Clearly you have a nice set up.  I know that my OS 140 RX will never go over 8000 RPM with 17x13 wide prop.  Are you sure that you have a 1.40? Probably you are talking about the OS 160.
I also have a carbon fiber pipe with OS F plug.  In fall and spring I use 15% nitro, 18% oil.  In summer (humid days) I go to 20% nitro.  The plane is a Hydeout.  I also have a Focus wiht a Mintor 140 that practically runs exactly like the OS 140 RX.  I am running now 3 blade re-pitched props on both planes.
Vicente

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

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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