Today's Message Index:
----------------------
1. 09:51 AM - Re: AeroElectric-List Digest: 55 Msgs - 09/14/06 (William Morgan)
2. 11:50 AM - Re: Fuel Pump Switch(es) (Mickey Coggins)
3. 12:32 PM - Re: Fuel Pump Switch(es) (Carlos Trigo)
4. 01:28 PM - Re: Fuel Pump Switch(es) (Mickey Coggins)
5. 02:21 PM - Re: Fuel Pump Switch(es) (Kevin Horton)
6. 03:14 PM - Milbar Pliers Repair ()
7. 07:19 PM - Heads-up on a test equipment opportunity (Robert L. Nuckolls, III)
8. 09:29 PM - 2-70 Toggle switch (John F. Herminghaus)
Message 1
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| Subject: | Re: AeroElectric-List Digest: 55 Msgs - 09/14/06 |
Greg,
Allied Electronics http://www.alliedelec.com/ has new Mil-Spec
MS25041 series, press-to-test, dimming panel lights.
Look on page 1542 on-line or search for allied p/n 511-0254.
They also have the press-to-test non-dimming type on the same page
Scott
>Time: 04:36:32 PM PST US
>From: Greg Young <gyoung@cs-sol.com>
>Subject: AeroElectric-List: Gear Indicator lights
>
> I need some help finding suitable gear indicator lights for a certified ai
>rcraft, my Navion. I'm doing some cleanup and want to cut a new panel with
>the gear lights repositioned. The current lights would work except they are
> circa 1959 and the lenses are disintegrating. They are press-to-test with
>a sort of mushroom shaped lense. I've gotten a couple replacement lenses fr
>om my avionics shop junk drawer but would rather source new lights (or lens
>es if they are still made) rather than depend on the "luck of the drawer" w
>hen they break again. Anything with Mil, PMA or mfg blessing would make it
>a logbook entry per my IA but I'm not adverse to doing a 337 to get LED's o
>r something more modern and aestetically pleasing than MS25041 (ugly and ex
>pensive). Any help would be appreciated.
>
>Thanks,
>Greg Young
Message 2
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| Subject: | Re: Fuel Pump Switch(es) |
--> AeroElectric-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
OldBob Siegfried wrote:
>
> He made a tent in the bottom of his fuel tank out of
> the same material as the little filters in the
> gascolator were made from. For a two foot long round
> fuel tank (the type favored by Steve) he ended up with
> a section of screen approximately two feet long and
> four inches wide. The tent walls were each about two
> inches high.
It seems the car manufacturers have learned from Steve Wittman, as most
cars now use a type of "filter bag" at the fuel inlet connected to the
in-tank fuel pumps. This provides a very large surface area for
filtering, and the agitation inside the tanks helps keep crud from
clogging up the filter.
--
Mickey Coggins
http://www.rv8.ch/
#82007 finishing
do not archive
Message 3
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| Subject: | Re: Fuel Pump Switch(es) |
--> AeroElectric-List message posted by: "Carlos Trigo" <trigo@mail.telepac.pt>
Hi Mickey
Long time you haven't posted.
Back in "business"? Still in CH? Still finishing the -8?
Carlos
Do not archive
----- Original Message -----
From: "Mickey Coggins" <mick-matronics@rv8.ch>
Sent: Saturday, September 16, 2006 7:48 PM
Subject: Re: AeroElectric-List: Fuel Pump Switch(es)
> --> AeroElectric-List message posted by: Mickey Coggins
> <mick-matronics@rv8.ch>
>
> OldBob Siegfried wrote:
>>
>> He made a tent in the bottom of his fuel tank out of
>> the same material as the little filters in the
>> gascolator were made from. For a two foot long round
>> fuel tank (the type favored by Steve) he ended up with
>> a section of screen approximately two feet long and
>> four inches wide. The tent walls were each about two
>> inches high.
>
> It seems the car manufacturers have learned from Steve Wittman, as most
> cars now use a type of "filter bag" at the fuel inlet connected to the
> in-tank fuel pumps. This provides a very large surface area for
> filtering, and the agitation inside the tanks helps keep crud from
> clogging up the filter.
>
>
> --
> Mickey Coggins
> http://www.rv8.ch/
> #82007 finishing
Message 4
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| Subject: | Re: Fuel Pump Switch(es) |
--> AeroElectric-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
> Long time you haven't posted.
> Back in "business"? Still in CH? Still finishing the -8?
>
> Carlos
Still finishing, and unfortunately the fun stuff (wiring) is almost
done. Then on to the cowl - ugh! At one point I really dreaded the
wiring, but this list and Bob's book made that a real pleasure.
--
Mickey Coggins
http://www.rv8.ch/
#82007 finishing
do not archive
Message 5
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| Subject: | Re: Fuel Pump Switch(es) |
--> AeroElectric-List message posted by: Kevin Horton <khorton01@rogers.com>
On 15 Sep 2006, at 10:18, Gary Casey wrote:
> --> AeroElectric-List message posted by: Gary Casey
> <glcasey@adelphia.net>
>
> Kevin previously wrote:
>> "If you don't do the test then, someday you may
>> stumble across that condition when you hadn't planned it. If the
>> system works as expected, then everything is OK. But if the system
>> does not perform, then you may lose the aircraft.
>
> Good points, but what "assumptions" do you have in mind that should
> be tested?
I'm not familiar enough with the assumptions that your fuel system
design was based on, so I can't make any specific recommendations.
If I understand properly, you looked at the conventional design fuel
system, but were not satisfied with some aspects of its operation, in
normal or abnormal conditions. E.g., "In situation A, if event B
occurs, the conventional design fuel system will not operate
adequately". Then you designed a fuel system that you believe should
work better in each of those situations. If your fuel system
actually functions as expected in each of those situations, then you
it should prove satisfactory in service. But, if it turns out that
it in fact performs differently than you assume it will, then maybe
there could be an accident or incident.
If you want to identify any potential problems during the test
program, find a way to create all the "situation A" + "event B" from
above. You have also considered all the conceivable normal and
abnormal operation scenarios, and determined that your fuel system
design should work properly. This should be validated by test.
Obviously, the tests must be conducted so that there will be a safe
outcome, even if the fuel system proves to not function as expected.
Kevin Horton RV-8 (finishing kit)
Ottawa, Canada
http://www.kilohotel.com/rv8
Message 6
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| Subject: | Milbar Pliers Repair |
--> AeroElectric-List message posted by: <bakerocb@cox.net>
9/16/2006
Hello Fellow Builders, I have a 6" Milbar Tiger Wave reversible safety wire
pliers that has quit working long before I think it should have been worn
out.
Is any one aware of a repair service for this pliers? Thanks.
OC
Message 7
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| Subject: | Heads-up on a test equipment opportunity |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
Of dozens of spam messages I filter through each day,
I did receive a welcomed piece from the folks at:
http://www.saelig.com
One item in their advertisement that caught my eye was
this oscilloscope:
http://www.saelig.com/miva/merchant.mvc?Screen=PROD&Product_Code=PSSA002&Category_Code=PSSA
I've written to the company to see if I can acquire an
instruction manual. What I'm hoping to discover is that one
may address many if not all of the 'scope's control features
through what is cited as a USB1.1 interconnect feature. I'm
hoping this includes a means by which the user captures screen
images not unlike those I often publish:
http://www.aeroelectric.com/Pictures/Curves/ContactSaver_1.jpg
At first glance, this bargain basement instrument is almost a
clone of my Tektronix TDS210 which sold new for about 4x the
special price of $299 for the clone. Even used TDS210's sell
for twice the price of the clone.
I'll try to make an assessment of this instrument's capabilities
and report to the List before the special price offer is over
(October 31). If it's 3/4 the 'scope I think it is, I'm going
to recommend that several of my students at RACU pick one of
these up. I may add one to my bench as well.
If anyone on the List decides to jump in on this deal, I'd
appreciate some cooperative communication to educate me on
the finer details of this product. Thanks!
Watch this space.
Bob . . .
---------------------------------------------------------
< What is so wonderful about scientific truth...is that >
< the authority which determines whether there can be >
< debate or not does not reside in some fraternity of >
< scientists; nor is it divine. The authority rests >
< with experiment. >
< --Lawrence M. Krauss >
---------------------------------------------------------
Message 8
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| Subject: | 2-70 Toggle switch |
--> AeroElectric-List message posted by: "John F. Herminghaus" <catignano@tele2.it>
Does anyone know of a source for a 2-70 toggle switch ((on)-on-(on))?
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