Today's Message Index:
----------------------
1. 04:35 AM - Trailer Plugs For Wing Root Disconnect (Terrence Gardner)
2. 05:17 AM - Re: Fast on's to make Terminal Blocks (Fiveonepw@aol.com)
3. 05:22 AM - Re: Trailer Plugs For Wing Root Disconnect (Fiveonepw@aol.com)
4. 06:13 AM - Re: Trailer Plugs For Wing Root Disconnect (Ed Anderson)
5. 06:44 AM - Re: Guarded Switches (Robert L. Nuckolls, III)
6. 07:27 AM - Re: Guarded Switches (Bruce Gray)
7. 07:34 AM - Re: Starter Engaged Light (Robert L. Nuckolls, III)
8. 07:42 AM - Re: Alternator - Thermocouples (Robert L. Nuckolls, III)
9. 07:51 AM - Re: Wiring PTT button (Robert L. Nuckolls, III)
10. 07:54 AM - Re: AeroElectric-List Digest: 41 Msgs - 01/28/04 (Speedy11@aol.com)
11. 07:54 AM - Re: Re: Shielded sensor wires (Robert L. Nuckolls, III)
12. 07:54 AM - Re: Guarded Switches (Paul)
13. 08:26 AM - Re: Starter Engaged Light (Neville Kilford)
14. 08:49 AM - Re: Starter Engaged Light (F1Rocket@comcast.net)
15. 08:50 AM - Re: Re: Lighted Toggle Switches now Panels (John Schroeder)
16. 09:10 AM - Ground Power Plug (John Schroeder)
17. 09:18 AM - Re: Guarded Switches // D-sub dust covers (Paul Messinger)
18. 11:01 AM - Re: Starter Engaged Light (John Schroeder)
19. 11:08 AM - Re: Starter Engaged Light (Robert L. Nuckolls, III)
20. 11:15 AM - Switch behavior (Robert L. Nuckolls, III)
21. 11:15 AM - Re: Re: AeroElectric-List Digest: 41 Msgs - (Robert L. Nuckolls, III)
22. 11:22 AM - Re: Starter Engaged Light (Robert L. Nuckolls, III)
23. 11:33 AM - Re: Guarded Switches // D-sub dust covers (John Schroeder)
24. 11:39 AM - External Power Receptacle (John Schroeder)
25. 01:31 PM - Re: Fig Z-16 Rotax 912/914 System (Robert L. Nuckolls, III)
26. 02:16 PM - Another option for Van's ABS air vents (Ken Brooks)
27. 03:57 PM - Quick connects (Kenneth Gresham)
28. 04:17 PM - Re: Quick connects (Alex Peterson)
29. 04:25 PM - Re: Starter Engaged Light (Randy Pflanzer)
30. 05:07 PM - Re: Quick connects (Condrey, Bob (US SSA))
31. 06:06 PM - Re: Quick connects (Larry Bowen)
32. 06:44 PM - Re: Quick connects (John Schroeder)
33. 07:00 PM - Re: Co ax antenna snap rings (Robert L. Nuckolls, III)
34. 07:11 PM - Re: Quick connects (Darwin N. Barrie)
35. 07:55 PM - Re: Quick connects (N67BT@aol.com)
36. 08:27 PM - CNX-80 FS (richard@riley.net)
37. 11:08 PM - Re: Fig Z-16 Rotax 912/914 System (Kingsley Hurst)
38. 11:49 PM - several questions (Troy Scott)
Message 1
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| Subject: | Trailer Plugs For Wing Root Disconnect |
--> AeroElectric-List message posted by: "Terrence Gardner" <ttandt@mindspring.com>
Weather Pack (Trailer Plugs) fabrication kits are available in various size
from longacreracing.com or IrvanSmith.com. You can make up a custom
disconnect as described in the AEC using Mil spec wire as opposed to the 9
strand commonly found on these plugs at auto parts stores. These sites have
a number of other tools/goodies
Terry Gardner
RV9a
Message 2
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| Subject: | Re: Fast on's to make Terminal Blocks |
--> AeroElectric-List message posted by: Fiveonepw@aol.com
In a message dated 1/28/04 10:35:59 PM Central Standard Time,
dboardm3@twcny.rr.com writes:
> I already have a 24 from B&C and I will only need a
> few grounds on the engine side of the firewall.
>
You may wish to consider just taking the grounds through the firewall along
with all the other stuff if there are only a few, as you say. I'd suggest this
would be a little cleaner with less connections in the engine environment.
>
> I have also been debating how to make connections for situations that
> typically use the screw type terminal blocks. (Float wiring, etc)
>
You'll need to use ring terminals (PIDG) for the floats and it would probably
be a good idea to add a separate ground wire to the sender mounting plate.
Another ring terminal with a star washer under one of the screw heads should
suffice. I ran the ground wire to a local ground on the fuselage inside the
wing root with another ring terminal, FWIW - and by the way, Vans floats & gauges
tested amazingly accurate in the 0-10 gal. range- very pleased with that!
> WHY NOT USE THE SEPARATE DOUBLE MALE FAST-ON'S RIVETED/FASTENED TO A
> NONCONDUCTIVE SURFACE TO FABRICATE FAST-ON TERMINAL BLOCKS?
>
> This would seem to give the convenience of a terminal block with the
> desirable connectivity of Fast-ons.
>
> Comments ...
As a general rule, make as few connections as possible of ANY KIND anywhere
in your system- ideally a wire should go directly from a device to a power
source or ground. Every joint adds a possible failure point. I'll take
reliability over convenience any day! There are plenty of sound ways to reconnect
a
wire if it needs to be cut...
From The PossumWorks in TN
Mark Phillips - all-electric RV-6A per Aeroelectric design & EVERYTHING
WORKS! 8-)
Message 3
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| Subject: | Re: Trailer Plugs For Wing Root Disconnect |
--> AeroElectric-List message posted by: Fiveonepw@aol.com
l don't know about you -7/-8/-9 folks, but if I EVER have to take the wings
off my -6A, it'll most likely be with a couple of trees or a chainsaw! Praying
to the cockpit gods was almost as bad as the canopy!
Mark - do not archive
Message 4
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| Subject: | Re: Trailer Plugs For Wing Root Disconnect |
--> AeroElectric-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
Subject: Re: AeroElectric-List: Trailer Plugs For Wing Root Disconnect
> --> AeroElectric-List message posted by: Fiveonepw@aol.com
>
> l don't know about you -7/-8/-9 folks, but if I EVER have to take the
wings
> off my -6A, it'll most likely be with a couple of trees or a chainsaw!
Praying
> to the cockpit gods was almost as bad as the canopy!
>
> Mark - do not archive
>
Having an 6A, I totally agree. It took me two days (much of it standing on
my head with body contrortions that I doubt I could manage today) to place
all the bolts and nuts for the wing attachment. However, it would appear
that the more recent designs with the wing spar "stubs" would be some what
easier to detach.
Ed Anderson
Do Not Archive
Message 5
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| Subject: | Re: Guarded Switches |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 06:43 PM 1/28/2004 -0600, you wrote:
>--> AeroElectric-List message posted by: "David Schaefer"
><dschaefer1@kc.rr.com>
>
>What's a good source for 'guarded switches' of the kind you pull out to be
>able to turn on (or off)? B&C doesn't carry them. The only ones I can find
>are Honeywell and they're $40-70 per switch!
Yup, that's why B&C doesn't carry them. These are indeed a low
volume, specialty switch with prices to match.
I know of no inexpensive sources of new switches with
this feature.
Bob . . .
Message 6
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| Subject: | Guarded Switches |
--> AeroElectric-List message posted by: "Bruce Gray" <Bruce@glasair.org>
Bob's right, my airplane has one, used for gear activation. Do a search
on MS24658-23D.
Bruce
www.glasair.org
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Robert L. Nuckolls, III
Subject: Re: AeroElectric-List: Guarded Switches
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
<bob.nuckolls@cox.net>
At 06:43 PM 1/28/2004 -0600, you wrote:
>--> AeroElectric-List message posted by: "David Schaefer"
><dschaefer1@kc.rr.com>
>
>What's a good source for 'guarded switches' of the kind you pull out to
be
>able to turn on (or off)? B&C doesn't carry them. The only ones I can
find
>are Honeywell and they're $40-70 per switch!
Yup, that's why B&C doesn't carry them. These are indeed a low
volume, specialty switch with prices to match.
I know of no inexpensive sources of new switches with
this feature.
Bob . . .
Message 7
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| Subject: | Re: Starter Engaged Light |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 01:41 PM 1/28/2004 -0500, you wrote:
>--> AeroElectric-List message posted by: John Schroeder
><jschroeder@perigee.net>
>
>Bob Nuckolls -
>
>On Z-14, where is the best place to take power for a "Starter Engaged"
>annunciator light?
Any place downstream of the starter contactor . . . or from the
contactor's "I" terminal if it has one. Be sure to fuse or
fuselink this lead AT the POWERED end.
Bob . . .
Message 8
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| Subject: | Re: Alternator - Thermocouples |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
>
> >
> >After talking to Vans, they said I probably blew the
> >voltage regulator by switching off the field that
> >disconnected the B-lead at the contactor. Switching
> >off field after it has started doesn't stop the
> >alternator because it gets field power from the
> >B-lead. They said they've been seeing this a lot
> >lately on alternators wired per z-24.
> >
> >Would it be an accurate statement to say that:
> >"Turning off the alt field after it has been turned on
> >for an internally regulated alternator wired as
> >depicted in Z-24 is a death sentence for the
> >alternator. An overvolt condition will also open the
> >contactor and finish off the alternator for good."
> >
> >If so, this might be a handy piece of information to
> >add to that diagram because it would have saved me
> >some trouble.
This is the first I've heard of it. Gee, if Van's
has seen a rash of these events, it would have been
really nice of them to let me know about it.
I'm looking into this. Watch this space.
Bob . . .
Message 9
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| Subject: | Re: Wiring PTT button |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 01:03 PM 1/28/2004 -0400, you wrote:
>--> AeroElectric-List message posted by: Kent Ashton <kjashton@vnet.net>
>
>Bob, these are great explanations and very helpful. You should get some
>kind of special acknowledgement for your work supporting homebuilders.
>--Kent A.
But I DO get rewarded . . . OBAM aircraft are coming on line
in ever increasing numbers unencumbered by no-value-added
assistance by those-who-know-more-about-airplanes-than-we-do.
Better yet, OBAM aircraft performance and return on investment
stands head and shoulders above stuff pushed off the assembly lines.
For me, this is many times more satisfying than any placard
on the wall or trophy on the shelf . . . but thank you for
thinking of me!
Bob . . .
-----------------------------------------
( Experience and common sense cannot be )
( replaced with policy and procedures. )
( R. L. Nuckolls III )
-----------------------------------------
Message 10
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| Subject: | Re: AeroElectric-List Digest: 41 Msgs - 01/28/04 |
--> AeroElectric-List message posted by: Speedy11@aol.com
In a message dated 1/29/04 2:58:55 AM Eastern Standard Time,
aeroelectric-list-digest@matronics.com writes:
<< I am leaning more toward the bat (aka Snapkap in the Carling Catalog)
style handles
as I feel that they would be more durable. >>
Charlie,
The Carling web site, in regard to the SnapKap switches says, "The LT-Series
toggle switches are AC rated illuminated toggle switches featuring a
three-color lighting sequence from a single lamp." I understood that we shouldn't
use
AC switches because when used with DC power the contacts burn slightly each
time they are thrown thus building up over time and causing long term trouble.
Is it okay to use AC switches?
Stan Sutterfield
Tampa
Message 11
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| Subject: | Re: Shielded sensor wires |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 07:20 AM 1/28/2004 -0500, you wrote:
>--> AeroElectric-List message posted by: "Trampas" <tstern@nc.rr.com>
>
>Terry,
>
>The thermocouple wire can be connected with crimped butt splices. However
>note that in my opinion, which should be taken with a grain of salt,
>soldering and heat shrink makes better connections.
>
>Regards,
>Trampas Stern
It's true, and contrary to what I wrote in the 'Connection
that thermocouple wire can be soft-soldered with readily
available tin-lead solder with the right kind of flux. I'm
considered doing a comic-book on this technique. Given
my earlier (20+ years ago) disappointing experiences with
soft solder, it's important that whatever we recommend has
a high-order probability of success for the neophyte builder.
In the mean time, techniques that get gas-tight grips
on thermocouple wires like silver solder, PIDG crimps,
4-quad d-sub crimps, etc. are attractive for their
lack of process sensitivity.
Bob . . .
Message 12
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| Subject: | Re: Guarded Switches |
--> AeroElectric-List message posted by: Paul <pwilson@climber.org>
Bought a simple on-off from John Deere for my tractor. It is a pull to move type.
Dont have the tractor so I cannot look up the brand. It was used to control
the PTO.
BTW, Auto Zone has flip covers in various colors to protect toggles. They have
a simple attachment that is held by the switch.
Paul
At 8:43 AM -0600 1/29/04, Robert L. Nuckolls, III wrote:
>--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
>
>
>At 06:43 PM 1/28/2004 -0600, you wrote:
>>--> AeroElectric-List message posted by: "David Schaefer"
>><dschaefer1@kc.rr.com>
>>
>>What's a good source for 'guarded switches' of the kind you pull out to be
>>able to turn on (or off)? B&C doesn't carry them. The only ones I can find
>>are Honeywell and they're $40-70 per switch!
>
> Yup, that's why B&C doesn't carry them. These are indeed a low
> volume, specialty switch with prices to match.
>
> I know of no inexpensive sources of new switches with
> this feature.
>
> Bob . . .
--
Message 13
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| Subject: | Re: Starter Engaged Light |
--> AeroElectric-List message posted by: "Neville Kilford" <nkilford@etravel.org>
Bob,
Why is it necessary to fuse the warning light (not an accusation, by the
way)? I'm thinking that the light would only be powered when the contactor
is engaged -- the same as the starter motor, which isn't protected.
TIA.
Nev
--
Jodel D150 in progress
UK
----- Original Message -----
From: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
Subject: Re: AeroElectric-List: Starter Engaged Light
> --> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
<bob.nuckolls@cox.net>
>
> At 01:41 PM 1/28/2004 -0500, you wrote:
> >--> AeroElectric-List message posted by: John Schroeder
> ><jschroeder@perigee.net>
> >
> >Bob Nuckolls -
> >
> >On Z-14, where is the best place to take power for a "Starter Engaged"
> >annunciator light?
>
> Any place downstream of the starter contactor . . . or from the
> contactor's "I" terminal if it has one. Be sure to fuse or
> fuselink this lead AT the POWERED end.
>
> Bob . . .
>
Message 14
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| Subject: | Re: Starter Engaged Light |
--> AeroElectric-List message posted by: F1Rocket@comcast.net
What's the risk if power for the light is taken from the fat terminal on the contactor
that goes to the starter, as long as it is fuselinked?
Randy
http://f1rocket.home.comcast.net/
> >Bob Nuckolls -
> >
> >On Z-14, where is the best place to take power for a "Starter Engaged"
> >annunciator light?
>
> Any place downstream of the starter contactor . . . or from the
> contactor's "I" terminal if it has one. Be sure to fuse or
> fuselink this lead AT the POWERED end.
>
> Bob . . .
>
Message 15
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| Subject: | Re: Lighted Toggle Switches now Panels |
--> AeroElectric-List message posted by: John Schroeder <jschroeder@perigee.net>
Dave -
Thanks for the info. I'm planning on using LED's. The engraved panels will
be over an aluminum panel of the same size. Looks like we'll have to
experiment on the size and placement of the LED's. Drill holes in the
aluminum plate and pot the LED's into the holes? Do you know of any good
mounting hardware for LED's? Might be able to adapt Bob's roll-your-own
kind that he has posted on his site.
John
Message 16
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| Subject: | Ground Power Plug |
--> AeroElectric-List message posted by: John Schroeder <jschroeder@perigee.net>
Hi Bob -
We're using Z-14 on a Lancair ES (batteries in the rear). We made and
installed your "Piper Style" external power receptacle. You show a diode
installed on the sensing pin in your diagrams that use the "Cessna Style"
receptacle.
It does not appear that one needs or can use a diode in a polarity sensing
circuit for the Piper receptacle. Correct?
If you need one, where would it go?
Thanks,
John Schroeder
--
Message 17
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| Subject: | Re: Guarded Switches // D-sub dust covers |
--> AeroElectric-List message posted by: "Paul Messinger" <paulm@olypen.com>
Prics and availability depends on needing a large body switch with 10-20amp
rating. Lots of small body switches with 5-6 amp contacts (and the bat
handle is full size so looks are close to the same) are available at a
reasonable cost. I have used them for many, many years with no problems on
DC applications. Available in SPDT, DPDT, 3PDT, 4PDT with pricing from $6
to $15 depending on supplier, # poles, and MFGR.
Mine have available screw on caps in RED or Aluminum color.
Use the following link with the mfgrs part # to find stock.
www.findchips.com
C&K try "7103k" for the part search without the ""
ITT try "7203K
NKK try "M2012LL1W01",find the catalog page for different poles etc Mouser
page 831 for example
Alco try "MTL106"
NOT seen by me but Alco lists a DP3T (ON-ON-ON) switch. MTL 406PA (Mouser
has stock)
I have not tried all of the above (using find chips but did try many) and
obtained the MFGR's part # from the following catalogs:
Digi-Key, Mouser, Newark, Allied, all list this type of switch and use of
find chips link provides a near instant stock and price comparison.
DUST CAPS FOR D-SUB CONNECTORS
Some time back there was a request for dust caps for the D-Sub connectors.
All of the above distributors list them in low quanity and price in various
sizes.
Paul
----- Original Message -----
From: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
Subject: Re: AeroElectric-List: Guarded Switches
> --> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
<bob.nuckolls@cox.net>
>
>
> At 06:43 PM 1/28/2004 -0600, you wrote:
> >--> AeroElectric-List message posted by: "David Schaefer"
> ><dschaefer1@kc.rr.com>
> >
> >What's a good source for 'guarded switches' of the kind you pull out to
be
> >able to turn on (or off)? B&C doesn't carry them. The only ones I can
find
> >are Honeywell and they're $40-70 per switch!
>
> Yup, that's why B&C doesn't carry them. These are indeed a low
> volume, specialty switch with prices to match.
>
> I know of no inexpensive sources of new switches with
> this feature.
>
> Bob . . .
>
>
Message 18
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| Subject: | Re: Starter Engaged Light |
--> AeroElectric-List message posted by: John Schroeder <jschroeder@perigee.net>
Randy -
What is fuselinked? The fat starter wire? The wire going back to the light?
I read Bob's response as fuzing or fuzelinking the wire back to the light.
I do not believe that the starter has any fuzing in the fatwire from the
contactor to the starter motor.
Cheers,
John
On Thu, 29 Jan 2004 16:49:24 +0000, <F1Rocket@comcast.net> wrote:
> --> AeroElectric-List message posted by: F1Rocket@comcast.net
>
> What's the risk if power for the light is taken from the fat terminal on
> the contactor that goes to the starter, as long as it is fuselinked?
>
> Randy
> http://f1rocket.home.comcast.net/
>
>> >Bob Nuckolls -
>> >
>> >On Z-14, where is the best place to take power for a "Starter Engaged"
>> >annunciator light?
>>
>> Any place downstream of the starter contactor . . . or from the
>> contactor's "I" terminal if it has one. Be sure to fuse or
>> fuselink this lead AT the POWERED end.
>>
>> Bob . . .
Message 19
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| Subject: | Re: Starter Engaged Light |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 04:49 PM 1/29/2004 +0000, you wrote:
>--> AeroElectric-List message posted by: F1Rocket@comcast.net
>
>What's the risk if power for the light is taken from the fat terminal on
>the contactor that goes to the starter, as long as it is fuselinked?
none at all.
Bob . . .
Message 20
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--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
There's more to switch behavior than pricing, mil-spec,
UL approved, etc., etc.
While working a task for RAC, I've been discovering the
effects of contact bounce on relays and switches. Just
took these traces on the bench comparing transition and
bounce characteristics of two products with big differences
in perceived "quality".
It's bounce characteristics of Microswitch products
that that uncovered a design deficiency in the ov protection
system of LR series regulators at RAC a few years ago.
When it gets down to the simple-ideas, one can encounter
some pretty profound differences that may or may not show
up in the advertising hype or published specifications.
See:
http://www.aeroelectric.com/articles/bounce.pdf
Bob . . .
-----------------------------------------
( Experience and common sense cannot be )
( replaced with policy and procedures. )
( R. L. Nuckolls III )
-----------------------------------------
Message 21
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| Subject: | Re: AeroElectric-List Digest: 41 Msgs - |
01/28/04
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
01/28/04
At 10:54 AM 1/29/2004 -0500, you wrote:
>--> AeroElectric-List message posted by: Speedy11@aol.com
>
>In a message dated 1/29/04 2:58:55 AM Eastern Standard Time,
>aeroelectric-list-digest@matronics.com writes:
>
><< I am leaning more toward the bat (aka Snapkap in the Carling Catalog)
>style handles
> as I feel that they would be more durable. >>
>
>Charlie,
>The Carling web site, in regard to the SnapKap switches says, "The LT-Series
>toggle switches are AC rated illuminated toggle switches featuring a
>three-color lighting sequence from a single lamp." I understood that we
>shouldn't use
>AC switches because when used with DC power the contacts burn slightly each
>time they are thrown thus building up over time and causing long term
>trouble.
>Is it okay to use AC switches?
See http://www.aeroelectric.com/articles/swtchrat.pdf
Bob . . .
-----------------------------------------
( Experience and common sense cannot be )
( replaced with policy and procedures. )
( R. L. Nuckolls III )
-----------------------------------------
Message 22
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| Subject: | Re: Starter Engaged Light |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 04:17 PM 1/29/2004 +0000, you wrote:
>--> AeroElectric-List message posted by: "Neville Kilford"
><nkilford@etravel.org>
>
>Bob,
>
>Why is it necessary to fuse the warning light (not an accusation, by the
>way)? I'm thinking that the light would only be powered when the contactor
>is engaged -- the same as the starter motor, which isn't protected.
you aren't going to burn a 2 or 4AWG wire . . . you'll burn a
22AWG lamp wire in seconds. When we owned the airport at Benton,
had a mechanic attempt to crank an engine without attaching
the crankcase to firewall jumper . . . did it twice on different
airplanes. Made for lots of smoke in a couple of seconds and
lots of work to replace wires. I didn't give him a third crack
at it. General rule of thumb is any wire NOT part of fat feeders
for alternator, battery or cranking motors that is 6" or longer
get protected. That's why you see fusible links in fuesblock-to-regulator
feedwire our z-figures.
Bob . . .
Message 23
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| Subject: | Re: Guarded Switches // D-sub dust covers |
--> AeroElectric-List message posted by: John Schroeder <jschroeder@perigee.net>
Paul -
That website is fabulous. Thanks for sharing it with us.
John
> Use the following link with the mfgrs part # to find stock.
>
> www.findchips.com
Message 24
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| Subject: | External Power Receptacle |
--> AeroElectric-List message posted by: John Schroeder <jschroeder@perigee.net>
Bob Nuckolls -
Disregard my request about the diode in the Z-14/External Power diagram. I
found one of your AutoCAD drawings in your "Weekend Seminars" wirebook
that shows the wiring for the "Piper" receptacle. It does not show a diode
in the circuit.
I also saw the fuzing and takeoff point for the "Starter Engaged" light in
another drawing. It comes off the starter side of the starter solenoid.
Thanks,
John
--
Message 25
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| Subject: | Re: Fig Z-16 Rotax 912/914 System |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 03:22 PM 1/28/2004 +1000, you wrote:
>--> AeroElectric-List message posted by: "Kingsley Hurst"
><khurst@taroom.qld.gov.au>
>
>Bob et.al.
>
>I feel deprived not being able to attend one of your seminars owing to
>where I live. I am therefore grateful for the opportunity to tap into
>the combined wisdom available on this list.
>
>In my endeavour to more fully understand the principles being applied
>and to try to gain more confidence in my ability to interpret the
>diagrams, I would be most obliged if you or others could help me with
>the following queries - ALL in respect of Fig Z-16 Rotax 912/914
>System. I have a plain vanilla Rotax 912 engine and a Europa aircraft
>(composite) with no bells or whistles and will be flying only day VFR.
>
>My queries
>
>1 Reason for the fusible link in series with the 5A CB in the line
>from the main bus to terminal 5 on S1, Master Switch?
The wire from bus to breaker is more than 6" long and has
smoke-risk due to it's length an small size. A fuse won't protect
it because we're trying to open a breaker downstream. Some 5A
breakers are so slow that they'll open a 30A fuse upstream. The
fusible link provides a robust (slow acting) protection of that
wire.
>2 Reason for the fusible link as opposed to an inline fuse in
>series with the Alternator Warn light?
See above.
>3 As I see the Alt Warn light in this circuit, the warning it
>provides is that the alternator is "off line" rather than that it is not
>charging.
Correct. Active notification of low voltage is the ulitmate
warning light.
> If I also connect another warning light between terminal 4 of
>the Master Switch and terminal "L" on the regulator (or "L" and "C" on
>the regulator), will this light illuminate when the engine is not
>running with the Master Sw turned fully on and extinguish as the
>alternator voltage rises after start-up?
Low voltage warning would be better . . . it catches low alternator
output for ANY reason.
Bob . . .
-----------------------------------------
( Experience and common sense cannot be )
( replaced with policy and procedures. )
( R. L. Nuckolls III )
-----------------------------------------
Message 26
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| Subject: | Another option for Van's ABS air vents |
--> AeroElectric-List message posted by: "Ken Brooks" <kenbrooks@charter.net>
While looking at the Aircraft Simulators site for backlit panel switches,
etc., I noticed they also had some attractive eyeball vents (ABS plastic)
that are smaller than the large ones that Van's sells. Thought others might
be interested. Cost is $25 ea.
http://www.aircraftsimulators.com/litevent.html
Ken Brooks
Roscoe, IL
Mired down with the canopy
Message 27
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--> AeroElectric-List message posted by: "Kenneth Gresham" <kgresham@mtco.com>
Does anyone have a suggestion for a simple quick connection for five or more wires.
This is for an electric trim tab servo and I would like to easily remove
for repair.
Message 28
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--> AeroElectric-List message posted by: "Alex Peterson" <alexpeterson@usjet.net>
> Does anyone have a suggestion for a simple quick connection
> for five or more wires. This is for an electric trim tab
> servo and I would like to easily remove for repair.
Someone suggested a while back using high quality R/C aircraft
connectors. Sounds good to me.
Alex Peterson
Maple Grove, MN
RV6-A N66AP 434 hours
www.usfamily.net/web/alexpeterson
Message 29
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| Subject: | Re: Starter Engaged Light |
--> AeroElectric-List message posted by: "Randy Pflanzer" <f1rocket@comcast.net>
That means to install a "fusible link" as a type of protection at the power
end of a circuit. It functions like a fuse or circuit breaker. You can buy
kits from B&C. Essentially, all it is ...is a smaller gauge wire than the
wire it is protecting, covered in a fireproof sheath. If the circuit gets
an overload, this short piece of wire will get red hot and break before the
wire in the circuit fries. The sheath keeps it from melting anything around
it. Sort of a "poor man's" fuse. Very ingenious, cheap, and simple to
install.
----- Original Message -----
From: "John Schroeder" <jschroeder@perigee.net>
Subject: Re: AeroElectric-List: Starter Engaged Light
> --> AeroElectric-List message posted by: John Schroeder
<jschroeder@perigee.net>
>
> Randy -
>
> What is fuselinked? The fat starter wire? The wire going back to the
light?
>
> I read Bob's response as fuzing or fuzelinking the wire back to the light.
> I do not believe that the starter has any fuzing in the fatwire from the
> contactor to the starter motor.
>
> Cheers,
>
> John
>
> On Thu, 29 Jan 2004 16:49:24 +0000, <F1Rocket@comcast.net> wrote:
>
> > --> AeroElectric-List message posted by: F1Rocket@comcast.net
> >
> > What's the risk if power for the light is taken from the fat terminal on
> > the contactor that goes to the starter, as long as it is fuselinked?
> >
> > Randy
> > http://f1rocket.home.comcast.net/
> >
> >> >Bob Nuckolls -
> >> >
> >> >On Z-14, where is the best place to take power for a "Starter Engaged"
> >> >annunciator light?
> >>
> >> Any place downstream of the starter contactor . . . or from the
> >> contactor's "I" terminal if it has one. Be sure to fuse or
> >> fuselink this lead AT the POWERED end.
> >>
> >> Bob . . .
>
>
Message 30
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| Subject: | RE: Quick connects |
--> AeroElectric-List message posted by: "Condrey, Bob (US SSA)" <bob.condrey@baesystems.com>
Here's Bob's suggestion:
http://www.aeroelectric.com/articles/macservo/macservo.html
Message 31
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--> AeroElectric-List message posted by: "Larry Bowen" <Larry@BowenAero.com>
I did it like this:
http://bowenaero.com/copper/displayimage.php?album=search&cat=0&pos=0
-
Larry Bowen
Larry@BowenAero.com
http://BowenAero.com
> -----Original Message-----
> From: Kenneth Gresham [mailto:kgresham@mtco.com]
> Sent: Thursday, January 29, 2004 7:03 PM
> To: aeroelectric-list@matronics.com
> Subject: AeroElectric-List: Quick connects
>
>
> --> AeroElectric-List message posted by: "Kenneth Gresham"
> --> <kgresham@mtco.com>
>
> Does anyone have a suggestion for a simple quick connection
> for five or more wires. This is for an electric trim tab
> servo and I would like to easily remove for repair.
Message 32
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| Subject: | Re: Quick connects |
--> AeroElectric-List message posted by: John Schroeder <jschroeder@perigee.net>
See Bob Nuckolls How-to paper on his website. It adapts a DB9 connector
for trim tab servos. If you can't find it, let me know and I'll email you
a copy of it.
John
On Thu, 29 Jan 2004 18:02:36 -0600, Kenneth Gresham <kgresham@mtco.com>
wrote:
> --> AeroElectric-List message posted by: "Kenneth Gresham"
> <kgresham@mtco.com>
>
> Does anyone have a suggestion for a simple quick connection for five or
> more wires. This is for an electric trim tab servo and I would like to
> easily remove for repair.
>
>
--
Message 33
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| Subject: | Re: Co ax antenna snap rings |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 01:15 PM 1/28/2004 -0800, you wrote:
>--> AeroElectric-List message posted by: kempthornes
><kempthornes@earthlink.net>
>
>Hi,
>
>Where can I get one of these?
>
>(The about 0.040 inch snap ring that holds antenna cable plug to the rack
>for radio, txp etc)
Check out the assortment of special hardware in any
REAL hardware store. ACE Hardware is one. They have
drawers with little bins containing assortments of
specialty hardware. Measure the o.d. of the groove
in the connector and see if the hardware store has
a snap ring very close to the size you need.
Bob . . .
Message 34
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| Subject: | Re: Quick connects |
--> AeroElectric-List message posted by: "Darwin N. Barrie" <ktlkrn@cox.net>
Deans 5 pin gold connectors available from www.radicalrc.com. Small, light
and a very solid connect.
Darwin N. Barrie
Chandler AZ
----- Original Message -----
From: "Alex Peterson" <alexpeterson@usjet.net>
Subject: RE: AeroElectric-List: Quick connects
> --> AeroElectric-List message posted by: "Alex Peterson"
<alexpeterson@usjet.net>
>
> > Does anyone have a suggestion for a simple quick connection
> > for five or more wires. This is for an electric trim tab
> > servo and I would like to easily remove for repair.
>
> Someone suggested a while back using high quality R/C aircraft
> connectors. Sounds good to me.
>
> Alex Peterson
> Maple Grove, MN
> RV6-A N66AP 434 hours
> www.usfamily.net/web/alexpeterson
>
>
Message 35
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| Subject: | Re: Quick connects |
--> AeroElectric-List message posted by: N67BT@aol.com
I bought a the Hirose mini circular connector from Digikey. They are very
small, easy to attach, locking, not real expensive, and sealed. I haven't
installed it yet but it looks perfect for the elevator trim to 5 wire Ray Allen
cable.
There is a photo at the following site.
http://www.hirose.com/
<Does anyone have a suggestion for a simple quick connection for five or more
wires. This is for an electric trim tab servo and I would like to easily
remove for repair.>
Message 36
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--> AeroElectric-List message posted by: richard@riley.net
I have one last CNX-80 for sale, new with full warrantee, $8750, doesn't
have to be installed by a dealer.
Message 37
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| Subject: | Fig Z-16 Rotax 912/914 System |
--> AeroElectric-List message posted by: "Kingsley Hurst" <khurst@taroom.qld.gov.au>
>1 Reason for the fusible link in series with the 5A CB in the
line
>from the main bus to terminal 5 on S1, Master Switch?
The wire from bus to breaker is more than 6" long and has
smoke-risk due to it's length an small size. A fuse won't protect
it because we're trying to open a breaker downstream. Some 5A
breakers are so slow that they'll open a 30A fuse upstream. The
fusible link provides a robust (slow acting) protection of that
wire.
Thank you for the clarification Bob, much appreciated.
Kingsley Hurst
Message 38
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| Subject: | several questions |
--> AeroElectric-List message posted by: "Troy Scott" <tscott1217@bellsouth.net>
Bob Nuckolls et al,
Today I was at Home Depot "Electrical Solder" described as "lead free", 95%
tin/5% antimony. After looking at several brands, I realized that ALL the
"electronics grade" solder there was "lead free". Is this because of new
government guidelines or some lawsuit problem? Is this solder good for our
purposes?
Bob, I've ordered the circuit board for your Audio Isolation Amplifier. I'd
like to use it to eliminate the need for an audio panel. I'll have an SL30
Nav-Com, another Com- only radio and an RST Marker Beacon Receiver. I plan
to just use the volume controls to select what I want to hear. I want to
utilize the internal intercom in the SL30. Do you foresee any problems with
this audio setup? Have you considered a way to make the stereo input "auto
mute" in favor of communications from ATC?
In your book I read about the method for trimming the quarter-wave dipole
antennas like I have installed in my Glasair. You mention a "through-line
wattmeter". I haven't been able to find out anything about this device.
Can you elaborate?
I've been planning to mount my transponder antenna on an aluminum inspection
cover. I read in your book that the ground plane diameter should be twice
the element length. Does this mean EXACTLY twice the length of the element?
Of is a little bigger OK? I see this style antenna mounted on the bottom of
aluminum airplanes where the whole airplane, or at least the whole panel is
the ground plane.... Anyway, the round aluminum inspection panel where I'd
planned to mount it is 6 5/8" in diameter. I also have another inspection
panel available that is 5 5/8".
Regards,
Troy Scott
tscott1217@bellsouth.net
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