REFLECTOR:flush windows

Greg Poole reflector@tvbf.org
Sun, 8 Jun 2003 09:34:59 +1000 

Oops, wrote that email at 0230 hours and slipped up. Sorry guys, I didn't
use a router, it was my air powered die grinder that I was meaning to refer
to ( the "big gun" compared to my Dremel).

Greg in Sydney.

----- Original Message ----- 
From: "Alexander Balic" <alex157@direcway.com>
To: <reflector@tvbf.org>
Sent: Saturday, June 07, 2003 11:53 PM
Subject: REFLECTOR:flush windows


> 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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>
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>
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>
> _______________________________________________
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>
> Visit the gallery!  tvbf:jamaicangoose