From: "Tracy Crook" <lors01@msn.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-3151816@logan.com>
Subject: Re: [FlyRotary] Re: Rotary engine
Date: Thu, 8 Apr 2004 01:52:44 -0400
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Consensus....   Ha!!!  Never happen Bob!
But anyway, if 200 HP is your goal, I'd go with the Renesis normally
aspirated.  Using the -C drive I think you will get 220 HP at 7500 rpm.  I'm
getting 200 HP now from my 89 vintage 13B NA at 7100 rpm.  Even this engine
seems happy at this speed except for the mystery oil loss.   Since I am not
turbo literate (just know a few of the pitfalls) I'd go for the turbo only
if I enjoyed pain and wanted to empty my wallet.

PS:  I changed my crankcase vent from the vent tube on the center housing to
the one on the oil filler tube.  The filler tube vent looses oil during
mildly aggressive aerobatics but the lower one seems to blow oil at high rpm
(or at least thats today's theory).  Haven't tested yet.

Tracy Crook  (Changing plugs, oil, fitting a tail wheel fairing, painting
spinner & nose surgery scars)

> I have been following this for a long time.  I was ready to work on a
rotary, when two things happened.  One is the discussion on Turbo and the
other was unemployment.  I now am trying to do Real estate and hope money
starts coming in so that I can finish my velocity.  Last Sun-n-fun I had
some lengthy discussions about turbo'n a 13-b and how I can get rid of all
that heat from a pusher.
>
> So now a year later and some progress, I am not worried about high
altitude airports, or at least at this time, since in Florida, flat lands is
not a problem.  But then again, I am not building a velocity to just fly
LOCAL.  Just boosting a 13b and only to 200+ just sea level and not
normalizing it for higher alts (at this  time) and using the turbo as a
muffler.  Well another sun-n-fun and more discussions on to turbo or not.
Any rotary velocity going to sun-n-fun or the bar-b-que dinner?
>
> Bob Kuc
>
>
> ----- Original Message -----
> From: Bulent Aliev <atlasyts@bellsouth.net>
> Date: Wednesday, April 7, 2004 9:42 pm
> Subject: [FlyRotary] Re: Rotary engine
>
> > On 4/7/04 5:01 PM, "Bob Kuc" <bkuc1@tampabay.rr.com> wrote:
> >
> > > I am still on the fence, but would like to decide what engine to
> > use.  I am
> > > building a Large wing Velocity, not the XL.  One of the original
> > designers of
> > > that version of the plane recommends that an  io-540 250 horse
> > would be the
> > > ideal engine.  Now I was thinking of either a 2 rotor that would
> > be turboed to
> > > 200+ hp at sl not at 10K or a NA 3 rotor.
> > >
> > > I would like to get a consensus of the better way to go?
> > Suggestions?  If I
> > > have to, I could probably hang the exhaust out the cowl, or
> > modify the cowl so
> > > as to get some airflow over the exhaust to help cool it.
> > >
> > > Bob
> > >
> > >
> >
> > Bob, the turbo puts the exhaust exactly where you want it, acts as
> > a very
> > good muffler and you harvest the hot gasses for more power. I vote
> > for13BTurbo.
> > bulent
> >
>
>
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