[NSRCA-discussion] A5 --- rx 1.40

[Mike Robinson]

Mike - 1/2 throttle is plenty with the set up that I have and the engine is
performing very well at all positions. I believe I could do a cuban 8
without getting above 5/8 throttle. I may try the 18.1 x 10 two blade when I
have the opportunity. At the moment I'm mostly doing some fine tuning on the
trim, mixing and balance. Plus my thumbs are used to the more classic
pattern ships like Daddy Rabbit, Intruder and Dirty Birdy. Flying this Focus
is so awesome and graceful --- well it should be once I get my footing! Ha!

On Jan 15, 2008 1:02 PM, Dr. Mike Harrison <drmikedds at sbcglobal.net> wrote:

>  Mike,
> I find the 18.1x10 or 10w or 11 to be the best performance prop out
> there.  Regarding speed, I consider speed the enemy.  Go for a very medium
> paced steady flow with very good vertical.  The OS should give about 7700
> rpm with the 10 pitch.  Fly 1/2 throttle or less on straight and level.  If
> you have transition issues with the engine, the pipe is too short.  The
> exhaust should be almost clear, a very light amber.  If it is darker, too
> lean, green is too rich.  I have 3 stock OS 1.4 with good bearings.  They
> all transition effortlessly and smoothly.  They have unlimited vertical.  My
> plane is big and weighs 11 lbs.
>
> Mike
>
>  ----- Original Message -----
> *From:* Mike Robinson <shineyobject at gmail.com>
> *To:* NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
>  *Sent:* Tuesday, January 15, 2008 9:17 AM
> *Subject:* Re: [NSRCA-discussion] A5 --- rx 1.40
>
>
> My plane is equipped with an OS 140RX with the OS Stainless Steel sealed
> rear bearing, Carl Mueller header and Greve pipe.  Motor mount is a Gator
> soft mount.  Tru Turn 3 blade FAI spinner with an APC 15.75 x 11 3 blade
> prop. (I have a 10 pitch prop also.) Using 25% Pro Pattern the plane will
> cover a lot of real estate quickly!  I'm wondering if I use 15% Cool Power,
> F plug and change to the 10 pitch prop would I be better off...?
>
>
> On Jan 15, 2008 9:58 AM, Dr. Mike Harrison <drmikedds at sbcglobal.net>
> wrote:
>
> >  OS F, Make sure your pipe is long enough-Macs header, ESpipe, plus 2
> > inches.  20% pro pattern is plenty.  18.1x10 or 11 prop.
> >
> >  ----- Original Message -----
> > *From:* Mike Robinson <shineyobject at gmail.com>
> > *To:* NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
> > *Sent:* Monday, January 14, 2008 5:23 PM
> > *Subject:* [NSRCA-discussion] A5 --- rx 1.40
> >
> >  I'm running an os 1.40  inverted with 25% pro pattern and sometimes
> > during hot weather 30% heli. Is an A5 OS plug my best choice based on some
> > of you guys experience?
> >
> > ------------------------------
> >
> > _______________________________________________
> > NSRCA-discussion mailing list
> > NSRCA-discussion at lists.nsrca.org
> > http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> >
> >
> > _______________________________________________
> > NSRCA-discussion mailing list
> > NSRCA-discussion at lists.nsrca.org
> > http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> >
>
>  ------------------------------
>
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>
>
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.nsrca.org/pipermail/nsrca-discussion/attachments/20080115/e088c777/attachment.html