Today's Message Index:
----------------------
1. 10:04 AM - Re: Switches all upside-down... (Lynn Cole)
2. 10:21 AM - Re: Switches all upside-down... (Michael Burbidge)
3. 10:59 AM - Re: Switches all upside-down... (William Schertz)
4. 11:36 AM - Re: RF interference on GRT fuel pressure with PTTRF interference on GRT fuel pressure with PTT (Fred Stucklen)
5. 02:45 PM - Re: Re: RF interference on GRT fuel pressure with PTTRF interference on GRT fuel pressure with PTT (Tim Andres)
6. 04:07 PM - Re: Switches all upside-down... (Jared Yates)
7. 09:14 PM - Re: Switches all upside-down... (hooverra)
Message 1
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Subject: | Re: Switches all upside-down... |
All of the switches on my 1946 Cessna 140 are upside down. Apparently
they were made that way at the factory. I just try to get used to it,
but given my druthers I would prefer having them mounted in the US
convention. I try to check the switches carefully after flying, but on
a few occasions I have left the master on. ARRGH!
I like the idea of drilling key holes top and bottom on the panel. As
others have pointed out, you can drill blind holes from the back on a
thick panel. On a thin panel, you can drill the holes all the way
through and use a thin stainless--steel washer (standard electrical
hardware) to cover the holes and protect the panel when you use a wrench
to tighten the nut.
-----
Lynn Cole
LynnCole@foxvalley.net
On Dec 26, 2012, at 12:43 AM, Michael Burbidge wrote:
<mburbidg@gmail.com>
>
> I just mounted my instruments and switches in my beautifully painted
panel. To my dismay I discovered that when I cut my panel, many months
ago, I drilled the key hole for all my B&C switches on the top instead
of the bottom of the main hole. This means that all my switches are
upside down. Off is up and on is down. ARG!
>
> I'm thinking I'm going to have to fill the key holes with putty and
drill new ones on the bottom. But I thought I'd check real quick to see
if there is a alternate keyed washer that would allow be to rotate the
switches 180 degrees.
>
> Thanks for any suggestions!
> Michael-
>
>
>
>
Message 2
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Subject: | Re: Switches all upside-down... |
Thanks for all the replies. Lots of good ideas. In the end, I decided
that I wanted to fly sooner rather than later. So I just drilled key
holes in the bottom also. Only about half the hole shows on the top.
Like you mention, if I find the right washer, I can probably cover the
entire hole.
Be there a next time, I will blind drill the holes on the bottom in the
back.
Michael-
On Dec 27, 2012, at 10:03 AM, Lynn Cole <LynnCole@foxvalley.net> wrote:
> All of the switches on my 1946 Cessna 140 are upside down. Apparently
they were made that way at the factory. I just try to get used to it,
but given my druthers I would prefer having them mounted in the US
convention. I try to check the switches carefully after flying, but on
a few occasions I have left the master on. ARRGH!
>
> I like the idea of drilling key holes top and bottom on the panel. As
others have pointed out, you can drill blind holes from the back on a
thick panel. On a thin panel, you can drill the holes all the way
through and use a thin stainless--steel washer (standard electrical
hardware) to cover the holes and protect the panel when you use a wrench
to tighten the nut.
> -----
> Lynn Cole
> LynnCole@foxvalley.net
>
>
> On Dec 26, 2012, at 12:43 AM, Michael Burbidge wrote:
>
<mburbidg@gmail.com>
>>
>> I just mounted my instruments and switches in my beautifully painted
panel. To my dismay I discovered that when I cut my panel, many months
ago, I drilled the key hole for all my B&C switches on the top instead
of the bottom of the main hole. This means that all my switches are
upside down. Off is up and on is down. ARG!
>>
>> I'm thinking I'm going to have to fill the key holes with putty and
drill new ones on the bottom. But I thought I'd check real quick to see
if there is a alternate keyed washer that would allow be to rotate the
switches 180 degrees.
>>
>> Thanks for any (And Get AeroElectric
http://www.matronics.com/co -Matt Dralle,
List - The --> http://www.m &n========
====
>>
>>
>>
>
>
>
>
Message 3
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Subject: | Re: Switches all upside-down... |
Lynn,
I used the =98thin .035-.065=99 strip behind my switches to
allow the tabs to go in the correct place for switch orientation. As
long as you have two or more switches side by side, you can avoid
rotation. Easier than drilling into the panel itself
Bill Schertz
From: Lynn Cole
Sent: Thursday, December 27, 2012 12:03 PM
Subject: Re: AeroElectric-List: Switches all upside-down...
All of the switches on my 1946 Cessna 140 are upside down. Apparently
they were made that way at the factory. I just try to get used to it,
but given my druthers I would prefer having them mounted in the US
convention. I try to check the switches carefully after flying, but on
a few occasions I have left the master on. ARRGH!
I like the idea of drilling key holes top and bottom on the panel. As
others have pointed out, you can drill blind holes from the back on a
thick panel. On a thin panel, you can drill the holes all the way
through and use a thin stainless--steel washer (standard electrical
hardware) to cover the holes and protect the panel when you use a wrench
to tighten the nut.
-----
Lynn Cole
LynnCole@foxvalley.net
On Dec 26, 2012, at 12:43 AM, Michael Burbidge wrote:
<mburbidg@gmail.com>
I just mounted my instruments and switches in my beautifully painted
panel. To my dismay I discovered that when I cut my panel, many months
ago, I drilled the key hole for all my B&C switches on the top instead
of the bottom of the main hole. This means that all my switches are
upside down. Off is up and on is down. ARG!
I'm thinking I'm going to have to fill the key holes with putty and
drill new ones on the bottom. But I thought I'd check real quick to see
if there is a alternate keyed washer that would allow be to rotate the
switches 180 degrees.
Thanks for any (And Get AeroElectric
http://www.matronics.com/co -Matt Dralle,
List - The --> http://www.m
&n============
Message 4
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Subject: | Re: RF interference on GRT fuel pressure with PTTRF |
interference on GRT fuel pressure with PTT
I just put in an order for their evaluation kit for four DB25 EMC units
(Item # 903C). I've been having problems with RFI getting into the fuel
pressure circuit, causing fuel pressure warnings on the EFIS engine page.
I'll put this unit onto the DB-25 on the EIS and see if it solves the issue
(or makes it worst). It can't hurt, but may not eliminate the issue is RFI
getting into the fuel pressure sending unit, causing it to send the wrong
information. Only a cap across it's leads would then eliminate the
problem...
Fred Stucklen
RV-7A N924RV 800+ Hrs
Triple GRT EFIS
GRT EIS
Time:
02:23:24 PM PST US
From:
Tim Andres <tim2542@sbcglobal.net>
Subject:
Re: RF interference on GRT fuel pressure with PTT
Wow cool idea. I'll be the guinea pig and report back when it's see if
it fixes
the problem.
Tim
________________________________
From: ChangDriver <capav8r@gmail.com>
Sent: Wed, December 26, 2012 2:19:18 PM
Subject: AeroElectric-List: Re: RF interference on GRT fuel pressure
with PTT
Forget about trying to put the capacitor on the line and solder to
ground and
just get one of these noise supression connector adapters.
http://www.camiresearch.com/connector_protector.html
Way simpler and it puts EMI supression on each pin!
Message 5
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Subject: | Re: RF interference on GRT fuel pressure with PTTRF |
interference on GRT fuel pressure with PTT
Thanks Fred, I had not gotten around to ordering yet as I recall one DB was m
ale pin and the other female. Do you plan to put one on each connector or ju
st the one that has the fuel pres. sensor?
Tim
Sent from my iPad
On Dec 27, 2012, at 11:35 AM, "Fred Stucklen" <wstucklen1@cox.net> wrote:
> I just put in an order for their evaluation kit for four DB25 EMC units (I
tem # 903C). I=99ve been having problems with RFI getting into the fue
l pressure circuit, causing fuel pressure warnings on the EFIS engine page. I
=99ll put this unit onto the DB-25 on the EIS and see if it solves the
issue (or makes it worst). It can=99t hurt, but may not eliminate the
issue is RFI getting into the fuel pressure sending unit, causing it to sen
d the wrong information. Only a cap across it=99s leads would then eli
minate the problem..
>
> Fred Stucklen
> RV-7A N924RV 800+ Hrs
> Triple GRT EFIS
> GRT EIS
>
>
> Time:
> 02:23:24 PM PST US
> From:
> Tim Andres <tim2542@sbcglobal.net>
> Subject:
> Re: RF interference on GRT fuel pressure with PTT
>
> Wow cool idea. I=99ll be the guinea pig and report back when i
t=99s see if it fixes
> the problem.
> Tim
>
>
> ________________________________
> From: ChangDriver <capav8r@gmail.com>
> Sent: Wed, December 26, 2012 2:19:18 PM
> Subject: AeroElectric-List: Re: RF interference on GRT fuel pressure
with PTT
>
>
> Forget about trying to put the capacitor on the line and solder to g
round and
> just get one of these noise supression connector adapters.
>
> http://www.camiresearch.com/connector_protector.html
>
> Way simpler and it puts EMI supression on each pin!
>
>
>
>
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>
Message 6
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Subject: | Re: Switches all upside-down... |
Contrary to a widely held belief among many homebuilders and most TC manufac
turers, my opinion is that airplanes need not make excuses for being airplan
es. Sometimes there will be holes, wires, hoses, or hardware that will be vi
sible- this is because simplicity and light weight matter much more in airpl
anes than they do in luxury cars. Being in the air with an extra lightening h
ole sounds much better than being on the ground with a panel that most folks
wouldn't be able to differentiate from the other without help. I think you m
ade a great choice!
On Dec 27, 2012, at 13:20, Michael Burbidge <mburbidg@gmail.com> wrote:
> Thanks for all the replies. Lots of good ideas. In the end, I decided that
I wanted to fly sooner rather than later. So I just drilled key holes in th
e bottom also. Only about half the hole shows on the top. Like you mention, i
f I find the right washer, I can probably cover the entire hole.
>
> Be there a next time, I will blind drill the holes on the bottom in the ba
ck.
>
> Michael-
>
> On Dec 27, 2012, at 10:03 AM, Lynn Cole <LynnCole@foxvalley.net> wrote:
>
>> All of the switches on my 1946 Cessna 140 are upside down. Apparently th
ey were made that way at the factory. I just try to get used to it, but giv
en my druthers I would prefer having them mounted in the US convention. I t
ry to check the switches carefully after flying, but on a few occasions I ha
ve left the master on. ARRGH!
>>
>> I like the idea of drilling key holes top and bottom on the panel. As ot
hers have pointed out, you can drill blind holes from the back on a thick pa
nel. On a thin panel, you can drill the holes all the way through and use a
thin stainless--steel washer (standard electrical hardware) to cover the ho
les and protect the panel when you use a wrench to tighten the nut.
>> -----
>> Lynn Cole
>> LynnCole@foxvalley.net
>>
>>
>> On Dec 26, 2012, at 12:43 AM, Michael Burbidge wrote:
>>
l.com>
>>>
>>> I just mounted my instruments and switches in my beautifully painted pan
el. To my dismay I discovered that when I cut my panel, many months ago, I d
rilled the key hole for all my B&C switches on the top instead of the bottom
of the main hole. This means that all my switches are upside down. Off is u
p and on is down. ARG!
>>>
>>> I'm thinking I'm going to have to fill the key holes with putty and dril
l new ones on the bottom. But I thought I'd check real quick to see if there
is a alternate keyed washer that would allow be to rotate the switches 180 d
egrees.
>>>
>>> Thanks for any (And Get AeroElectric http://www.matronics.com/
co -Matt Dralle, List - The --> http:
//www.m &n============
>>>
>>>
>>>
>>
>>
>>
>> face="courier new,courier">www.aeroelectric.com
>> href="http://www.buildersbooks.com/">www.buildersbooks.com
>> href="http://www.homebuilthelp.com/">www.homebuilthelp.com
>> href="http://www.matronics.com/contribution">http://www.matronics.com/c
ontribution
>> href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.
matronics.com/Navigator?AeroElectric-List
>> href="http://forums.matronics.com/">http://forums.matronics.com
>>
>
>
>
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>
Message 7
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Subject: | Re: Switches all upside-down... |
If the switches are in a row or several rows drill a plate to go behind the panel
as thick as the tang on the anti turn washer. In this plate punch the index
holes in the correct location. This is then interposed between the switch with
washer and the back of the panel.
On my RV7 all of the switches are mounted to a u channel that is fastened to the
panel with 4 screws and spacers. Only the end of the threaded switch bushing
goes through the panel and remains flush with the panel. The panel is removable
with a few connectors and removing the switch mounting screws. The switches
remain connected.
--------
Ralph & Laura Hoover
RV7A N527LR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=391067#391067
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