REFLECTOR:flush windows

Sat, 07 Jun 2003 08:53:28 -0500

I used a Dremel with the sanding drum to "draw" the line for the lip. was
very easy to control the small tool, I just cut down about 1/32 right on the
line, then went back with my 90 deg. die grinder w/36 grit on a 2" disk to
remove the bulk of the plexi, never had a problem with the tools wanting to
go where they were not supposed to,  but I'm sure that using the router
would be a lot faster, but then having to replace a window because it got
away would take quite a while too.....

-----Original Message-----
From: reflector-admin@tvbf.org [mailto:reflector-admin@tvbf.org]On
Behalf Of Greg Poole
Sent: Saturday, June 07, 2003 2:32 AM
To: reflector@tvbf.org
Subject: Re: REFLECTOR:Re: RG vs. Fixed

I have flush mounted my windows on the same model Velocity (but cannot build
as quickly as Jack obviously has).While routing the lip on the plexiglass
windows was nerve racking (the router continually wants to write it's name
on the rest of the window!), the operation was no big deal and readily easy
to achieve a good result.

In fact, I am likely to have to do  it again if the dark tint glass I
somehow managed to order (I think?)  is too dark for night VFR use.

If this results in the same performance (190kts!!!!!! wow!!!) that Jack
indicates (it was in the back of my mind that this might optimise passage
thru the air) then I am mighty glad I have done it - what is the point of
owning a high performance bird and then tripping it (the bird and the air
flow) up? Jack .....keep passing on the detailed tips - I'll willingly
follow your lead including the flanged front gear doors if I can get 190kts
(looking seriously at 350HP peak power on a turbo'd 13B Mazda).

Did someone say that our French mate isn't installing transverse bulk
heads?????? I'd like to know the reasoning.....

Greg Down Under
Greg Poole
STD RG E
----- Original Message -----
From: "jack davis" <n767sd@hotmail.com>
To: <reflector@tvbf.org>
Sent: Saturday, June 07, 2003 1:06 PM
Subject: Re: REFLECTOR:Re: RG vs. Fixed

> Yes, I used the triangular GPS calculations as laid out in a Sport
Aviation
> article.  I've tried it several times to be sure.  I've also made several
> long cross-country flights which continually demonstrate I'm getting the
> speed I think I'm getting.  Actually, my airspeed indicator use to read
low
> compared to my ground speeds, but the factory helped me get the static
port
> straightend out.
>
> The aircraft I have is a Std-RG Elite with a 200 hp Lycoming LIO-360-C1E6
> with oversized cylinders, running an MT prop.  Fuel burn at 8500 feet is
> usually around 10.5 gph (I usually run a little on the rich side).
>
> I have often told folks that you can get speed gains if you pay attention
to
> airflow in the boundary layer (typically, the first few millimeters above
> the surface).  Lots of articles have been written about minimizing the
> "trips" in the boundary layer.  I think my biggest contributor is the
flush
> mount windows.  This was painstakenly done by routering a grove in the
> window glass so that it would fit flush in the fuselage.
>
> Cheers . . .
>
> Jack
> ----- Original Message -----
> From: "Scott Derrick" <scott@tnstaafl.net>
> To: <reflector@tvbf.org>
> Sent: Tuesday, June 03, 2003 11:54 PM
> Subject: Re: REFLECTOR:Re: RG vs. Fixed
>
>
> > Jack,
> >
> > Have you flown a fixed triangle course to get these numbers, as GPS
> > ground speed will lie unless you average it over a triangle or square
> > course?
> >
> > Thast a very impressive speed, what kind of Velocity, engine, prop are
> > you using and what is your fuel burn at that speed?
> >
> > Scott
> >
> > jack davis wrote:
> > >>I am not really sure what the speed loss >would be with a good fitting
> > >
> > > farings.  I >think 10kt could be high.  I have a IO->360 @210hpw/
> > > 10-1pistons and mt.  I >true at 178kts balls to the wall above >8K.
> What
> > > about other' fliers REAL no >B.S. #'s.
> > >
> > > I can honestly say that I get much higher true airspeeds and the GPS
> > > confirms what I'm seeing.  I true to about 187-190 KTAS.  Of course, I
> have
> > > made modifications including flush mounted windows, flanged main gear
> doors
> > > and tightly fitting nose gear doors, aileron gap seals, low drag oil
> cooler
> > > ducting, modified cowling, and tight seams everywhere.  I don't know
> what
> > > any of these things are worth individually.  I am working on a mod
that
> will
> > > completely enclose and streamline the main gear, but don't know if
this
> will
> > > add any more speed.  I can tell you that I love every knot I gain.
> > > Aerodynamic efficiencies are so much better than adding more
horsepower.
> > > When you are flying long cross-countries, a 30 or 40 minute cut in
time
> is
> > > well appreciated.
> > >
> > > Jack
> > > _______________________________________________
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> >
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