Today's Message Index:
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1. 12:08 PM - Firewall Penetration Redux (Jeff Luckey)
2. 01:35 PM - Re: Firewall Penetration Redux (Charlie England)
3. 02:22 PM - Re: Firewall Penetration Redux (Robert L. Nuckolls, III)
4. 09:02 PM - Clearance Delivery Diode Leakage (MFleming)
Message 1
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| Subject: | Firewall Penetration Redux |
BobN,
A couple of weeks ago you posted a picture of a Bonanza's firewall under co
nstruction.=C2- It shows a firewall pass-thru fitting with a 90 deg bend
and some sort of flange attached to firewall.=C2- What is that fitting ma
de of?
-Jeff
Message 2
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| Subject: | Re: Firewall Penetration Redux |
On 12/29/2020 2:03 PM, Jeff Luckey wrote:
> BobN,
>
> A couple of weeks ago you posted a picture of a Bonanza's firewall
> under construction. It shows a firewall pass-thru fitting with a 90
> deg bend and some sort of flange attached to firewall. What is that
> fitting made of?
>
>
> -Jeff
I'm not Bob, but stainless grab bars work well. Just find versions that
have the flange welded onto the bend. I needed a straight shot off the
firewall for mine, so I cut it short enough that I just had a short stub
left for clamping the fire sleeve. Ebay has had smaller (~1") stainless
flanged stubs in the past, but I can't find the link now.
Charlie
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Message 3
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| Subject: | Re: Firewall Penetration Redux |
At 02:03 PM 12/29/2020, you wrote:
>BobN,
>
>A couple of weeks ago you posted a picture of a Bonanza's firewall
>under construction. It shows a firewall pass-thru fitting with a 90
>deg bend and some sort of flange attached to firewall. What is that
>fitting made of?
Beech fabricated their fittings from stainless
steel.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 4
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| Subject: | Clearance Delivery Diode Leakage |
The wiring has begun for my RV-7. I've decided to use fuse blocks for circuit protection.
The architecture will utilize a clearance delivery (CD) buss. The CD buss has a
diode installed per Z101B. When applying DC voltage to the CD bus and measuring
the voltage at the main buss, there is a 350 to 390 mv reading.
Is that enough to worry about or do I have a bad diode? This is the B&C Essential
Bus Diode w/ 8 watt heatsink PN-221-200.
Heres a photo of the fuse blocks while being tested for leakage. You may be able
to make out the 351.8 mv leakage.
http://myplace.frontier.com/~tokosha/avionics/test_diode.jpg
--------
Michael Fleming
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=499896#499896
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