- Brace yourself!!! 2-cycle pipes and coupler material

[Ron Lockhart]

Would you know weight of the Greve?
Ron Lockhart

----- Original Message -----
From: Michael Ramsey <michaelr at flying-models.com>
Date: Monday, November 4, 2002 11:32 am
Subject: Re:  - Brace yourself!!! 2-cycle pipes and coupler material

> Will the Greve pipe work on the OS 1.60?
> 
> Any idea if the same length will work with that engine?
> 
> Thanks!
> 
> Michael Ramsey
> 
> 
> ----- Original Message -----
> From: "Woodward James R Civ 416 FLTS/TPS" 
> <James.Woodward2 at edwards.af.mil>To: <discussion at nsrca.org>
> Sent: Monday, November 04, 2002 11:07 AM
> Subject: - Brace yourself!!! 2-cycle pipes and coupler material
> 
> 
> > Hey Folks
> >
> >  - Brace yourself!  Those of you that think the most expensive 
> option for
> > equipment is best, you may want to sit down.  This weekend I 
> flew my Phase
> > One with Webra 1.45 R and replaced my very expensive ES 2 cycle 
> pipe with
> > 0.9" inlet, with the less expensive Greve pipe.  On the ground, 
> the engine
> > seemed to run up a little better.  This engine has about 300 
> flights on
> it.
> > In the air, it was acting like a new engine again!!!!!!!!!!  
> This was a
> VERY
> > pleasent surprise, as the power was 'not-what-it-used-to-be'
> > (understandably).  Still using the 17 x 12 APC (regular blade).
> > Additionally, the "hickup" that was present when throttleing 
> from inverted
> > that was a pain with the ES setup, is now gone.  For instance, when
> pushing
> > around the bottom of the cuban 8 with 2/4, thottle is smooth without
> > hessitation.  Same with exit of the triangle loop, and exit of 
> the 3 turn
> > spin. - very happy customer.  This was the same pipe I tried 
> first on my
> > Advantage.  That setup, I used the "full-length" MACs header, 
> 1/4 - 3/8"
> > gap, and the "full-length pipe".  That was about 1.5-2.0" longer 
> than the
> > 27.5" setup length on Piedmonts website.  Setup ran perfectly.  
> On the
> Phase
> > One setup, I used the 27.5" setting by cutting down the header, with
> equally
> > good performance.  I will attribute any extra performance on the 
> Advantage> due to it's using the new Webra AAR.  The design of the 
> pipe does not lend
> > to cutting anything from the pipe (... wouldn't recommend that 
> approach).> The whole setup fit with some room to spare in the 
> Phase One.
> >
> >  I'm getting away from a kick of reading rpm of reading on the 
> ground(after
> > some reading about pipe theory).  Readings show that max "air" 
> performance> is gained by getting the pipes peak performance on 
> the ground, and
> > lengthening the setup to about 300 rpms less.  Then, it unloads 
> in the air
> > and has more sustained power in the uplines.
> >
> > Header coupler material:  Tired of having your Aerotrend replacement
> > silicone tubing crack and break too quickly?  www.mcmaster.com has
> > "silicone" replacement tubing.  I ordered some off of Bob P.'s
> > recommendation.  I ordered 2' each of "clear-medical" silicone, 
> and "red"
> > silicone tubing.  The material seems very good.  Total cost 
> including> shipping was $18.00.  The red feels lighter.  Both seem 
> durable and
> plyable
> > - similiar to the material that Macs headers come with.
> >
> > Jim W.
> > =====================================
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> > # discussion-request at nsrca.org
> > # and put leave discussion on the first line of the body.
> > #
> 
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> 

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