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murphy-rebel@dcsol.com at 09:08:44 on 19 Nov 2000.
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Walter, the same way you can make any size! Use a hole saw and make a __
diameter hole (to match the tube size) in a board about an 1" to and 1 1/2"
in thickness. Cut off a piece of tube about 5/8" to 3/4" longer than the
board thickness and stick it in the hole. Place on a hard surface (cement
floor) and carefully peen the tube over and down onto the boards face. Helps
if you have something round to get it started (like a trailer hitch ball
when doing 2 " flanges) and works best with 5052 tube that you <don't> have
from the kit. Also works well with stainless tube. In either case the tube
always deforms and squashes a little, but once the scat hose is over top of
it no one will know (but you). If you can't get it to work with the 6061 you
can also make a flange by drilling holes around the perimeter of the tube
and snipping tabs to bend down as flanges. Drill and rivet it over the
outlet hole and use a little RTV to seal the perimeter so it doesn't leak
around the drill holes, etc. You can also make from flat sheet, by cutting
the flange tabs and rolling and riveting the overlap at the size required!
As for placement, I put the defroster "box" (and yes it is one piece with
slider door etc) on the pilots side about an 1 1/2" to 2" back from the
windshield (far enough forward, so it clears my gyros etc)
Regards,
Wayne G. O'Shea
www.irishfield.on.ca
----- Original Message -----
From: "Walter Klatt" <
Walter.Klatt@home.com>
To: " (Murphy Rebel Builders List)" <
murphy-rebel@dcsol.com>
Sent: Sunday, November 19, 2000 12:13 AM
Subject: Re: Defroster
Again, thanks for the tips. I do have a couple of questions, though. How
do you make duct
flange out of 1 " tube? I can see making a 1 " inch diameter hole in your
box and
deflector plate and sticking in the tube, but how do you attach it without
welding? Also
not sure just where you would locate that slider door and knob. If it is
right at the
defrost box, how would you reach it from your seat position?
"Wayne G. O'Shea" wrote:
Walter and All,
In my personal Rebel all I did for a defrost source was to put a
deflector
plate spaced about a 1/2" in front of the cabin heat outlet on the
firewall.
It is just a flat plate with the top edge bent over so the heat comes
out of
the bottom and both sides, instead of blowing straight at the passengers
knees. On the face of the deflector (directly inline with the heat
outlet) I
put a 1" duct flange (simple to make from 1 " dia scraps you should have
left over from the control tube running along the door sill) that feeds
a
scat hose up to a homemade defroster vent. I made the defroster "box"
out of
aluminum, with a sliding 1' x 4' slider "door" and another 1" duct
flange to
attach the scat hose to. It uses a chromed drawer knob to open and close
it,
similar to what you would find in an older Cessna. I have NEVER had my
windshield fog up and I fly in ANY weather temps from 100 F to 40 below.
I
may freeze my ass off, but I can always see where I am going!
Regards,
Wayne G. O'Shea
www.irishfield.on.ca
----- Original Message -----
From: "Walter Klatt" <
Walter.Klatt@home.com>
To: " (Murphy Rebel Builders List)" <
murphy-rebel@dcsol.com>
Sent: Saturday, November 18, 2000 7:55 PM
Subject: Re: Defroster
Hmmm, some good ideas here, thanks. Any idea where to get a cheap 2
way
box from? I could
probably use the same one as I have on the front side of the firewall
for
my existing
cabin heat, but I believe they are over 100 bucks CDN.
Bob Patterson wrote:
Tire)
--------------------------------orig.------------------------------------
standard
on
cold. By
find I
back,
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