[NSRCA-discussion] cost of electric - now engine choice

[John Pavlick]

Kelly,
 You'll be surprised how fast you "learn" once you start to burn some
serious fuel. As far as the "strange midrange" issue - true, but that has
more to do with pipe setups. If the pipe is too short, you'll get a rich
midrange. With the OS 160 you don't need to set the pipe as short as
possible to get the max. R's out of the motor, and it seems to be less
sensitive to the pipe setup than a 140. The Aeroslave pipe works great.
Start with it a little bit on the long side (Aeroslave has some
recommendations on their site) and go from there. It should still give you
at least 8000 RPM with a 17x12 2-blade or better yet a 15.75x10 (re-pitched)
3-blade. I don't have a lot of experience with the 140 so I can't offer any
advice but there are plenty of them here in D1 that get the job done.
Whichever one you decide on, I'm sure you'll be happy.

John Pavlick
http://www.idseng.com


> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Kelly Regan
> Sent: Wednesday, September 20, 2006 8:17 PM
> To: NSRCA Mailing List
> Subject: Re: [NSRCA-discussion] cost of electric - now engine choice
>
>
> Thank's guys... Once you see me fly you will understand that
> "moving up to masters"  was a great joke!    I will be in
> sportsman for a while!
>
> You know some guys have JR on the sides of the planes...
> Mine has WR....  Wrong Rudder!  ;)
>
> Mike:
> Thank you for the plane recommendation.
>
> I was offered a good deal on a previously owned but unbuilt Brio
> and purchased it last month.  For a practice plane I have a Showtime
> with the throws dialed way down per Don Szcur's recommendation
> in the pattern forum on RCU.  I have a OS 1.20 4s in it.
>
> Fred:
> I hope I don't dumb thumb anything at a contest, that is one of my
> biggest fears!   However I did do that with my first 28% Edge.
>
> John:
> Concentrating on flying is exactly what I want to do.  I don't
> want to fight
> an engine to make it run reliably.   I am torne between the 160 and 140.
> The cost difference between the two is not really a problem.  I just don't
> want to get a 140 and wish I had a little more power.  However there is
> always 20% fuel.
>
> Vicente:
> Thank you for the incite on the gas engine. Weight is a concern as well as
> longevity of the airframe.  I am leaning toward the glow 160 or 140.
>
> Joe:
> User friendly is what I am after...  you make a convincing
> argument for the
> 140.   I would rather pay a couple hundred more then regret saving that
> money
> while fighting an engine.   My only problem at this point is deciding
> between the 2.
> I have read great reports about both setups.   The only thing bad I have
> heard about
> the 160 is that it can have a strange mid range with the perry pump?
> What that means
> I have no idea but it was told to me by someone that has been
> around/designed
> pattern planes for a while.
>
> Thanks again for the help !
>
> --
> Kelly Regan
> Visit the Georgetown Branch: http://mysite.verizon.net/vze6uror/
> Freestate Aeromodelers: http://www.freestateaeromodelers.org/
>
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