REFLECTOR: Starter contactor
Scott Derrick
scott at tnstaafl.net
Thu Jul 18 20:55:28 CDT 2013
My ground return is the 5/8 thick wall copper tubing(2) that my oil runs in. My battery and apt wire is a single OO wire.
Douglas Holub <douglas.holub at gmail.com> wrote:
>Just out of curiosity, I calculated how much wire weight would be saved by
>using a 24 volt system vs. a 12 volt system.
>
>Assumptions: 0.07 mohm/ft for 00 AWG, 29 mohm/ft for 4 AWG, 10 feet each
>way from the battery to the starter, 50 amp starter load at 12 volts, 25
>starter load at 24 volts.
>
>With the 12 volt system you would lose 3.5 volts across the starter wires
>while starting and the wire would weigh 7.5 lbs.
>
>For the 24 volt system you would lose 3.6 volts and the wire would weigh
>2.4 lbs.
>
>Doug Holub
>
>
>
>
>
>On Thu, Jul 18, 2013 at 8:10 AM, David Ullman <ullman at robustdecisions.com>wrote:
>
>> If you are referring to what I call the starter solenoid, mine is on the
>> firewall. I thought that was where most people put them to keep the wire
>> weight down. I have my main in the front.
>>
>>
>> David Ullman
>> N444DX
>> President EAA 292
>> 541-760-2338
>> david at davidullman.com
>>
>>
>>
>>
>> -----Original Message-----
>> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
>> Behalf Of reflector-request at tvbf.org
>> Sent: Wednesday, July 17, 2013 12:26 PM
>> To: reflector at tvbf.org
>> Subject: Reflector Digest, Vol 100, Issue 71
>>
>> Send Reflector mailing list submissions to
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>>
>> Today's Topics:
>>
>> 1. Does anyone have their starter contactor on the firewall?
>> (Don Johnston)
>> 2. Re: Does anyone have their starter contactor on the
>> firewall? (Tim Rhodenbaugh)
>> 3. Re: Does anyone have their starter contactor on the
>> firewall? (Don Johnston)
>> 4. Speed Brake (John Dibble)
>> 5. Re: Does anyone have their starter contactor on the
>> firewall? (nmflyer1 at aol.com)
>> 6. Re: Does anyone have their starter contactor on the
>> firewall? (Scott Derrick)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Wed, 17 Jul 2013 13:10:39 -0500
>> From: Don Johnston <numa at comcast.net>
>> To: reflector at tvbf.org
>> Subject: REFLECTOR: Does anyone have their starter contactor on the
>> firewall?
>> Message-ID:
>> <CALD29ir2d+_B6u=
>> Ew5U0Ze_+Se2S0UVo7z6oUJe0YkuonF6-WQ at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> I've got the gear pump assembly from Wayne Lanza which has the battery and
>> the starter contactor on it.
>>
>> I'm looking at the wiring and having to run the B-leads from the
>> alternators
>> all the way up to the nose. It occurred to me that I if the starter
>> contactor was on the firewall that I could run the alternators to the
>> battery side of the starter contactor which would allow me to utilize the
>> low gauge wire already in place between the the starter and battery
>> contactor.
>>
>> But every Velocity that I've looked at has the both contactors in the
>> front.
>>
>> Just wondering anyone has their starter contactor on the firewall.
>>
>> -Don Johnston
>> XL-RG
>> -------------- next part --------------
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>> ------------------------------
>>
>> Message: 2
>> Date: Wed, 17 Jul 2013 14:18:33 -0400
>> From: Tim Rhodenbaugh <timrhod at aol.com>
>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>> Subject: Re: REFLECTOR: Does anyone have their starter contactor on
>> the firewall?
>> Message-ID: <26CDE257-6421-49A0-AD29-FD026E202CDE at aol.com>
>> Content-Type: text/plain; charset=us-ascii
>>
>> It's been done. I put mine on the firewall. Are you sure it's the starter
>> contractor on the pump assembly board and not the master contractor? Tim
>> Rhodenbaugh n370TR XLRG
>>
>> Sent from my iPad
>>
>> On Jul 17, 2013, at 2:10 PM, Don Johnston <numa at comcast.net> wrote:
>>
>> > I've got the gear pump assembly from Wayne Lanza which has the battery
>> and
>> the starter contactor on it.
>> >
>> > I'm looking at the wiring and having to run the B-leads from the
>> alternators all the way up to the nose. It occurred to me that I if the
>> starter contactor was on the firewall that I could run the alternators to
>> the battery side of the starter contactor which would allow me to utilize
>> the low gauge wire already in place between the the starter and battery
>> contactor.
>> >
>> > But every Velocity that I've looked at has the both contactors in the
>> front.
>> >
>> > Just wondering anyone has their starter contactor on the firewall.
>> >
>> > -Don Johnston
>> > XL-RG
>> > _______________________________________________
>> > To change your email address, visit
>> > http://www.tvbf.org/mailman/listinfo/reflector
>> >
>> > Visit the gallery! www.tvbf.org/gallery user:pw = tvbf:jamaicangoose
>> > Check new archives: www.tvbf.org/pipermail Check old archives:
>> > http://www.tvbf.org/archives/velocity/maillist.html
>>
>>
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Wed, 17 Jul 2013 13:30:11 -0500
>> From: Don Johnston <numa at comcast.net>
>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>> Subject: Re: REFLECTOR: Does anyone have their starter contactor on
>> the firewall?
>> Message-ID:
>> <CALD29iqf--7FFRExbsu4+XKK8x8jLz_=
>> gs+QVas1rhPGW7i09Q at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> I'm sure. :-)
>>
>>
>> http://www.velocity-xl.com/blog/wp-content/uploads/2011/11/2011-11-16-DSC_01
>> 40.jpg
>>
>> -Don
>>
>> On Wed, Jul 17, 2013 at 1:18 PM, Tim Rhodenbaugh <timrhod at aol.com> wrote:
>>
>> > It's been done. I put mine on the firewall. Are you sure it's the starter
>> > contractor on the pump assembly board and not the master contractor?
>> Tim
>> > Rhodenbaugh n370TR XLRG
>> >
>> > Sent from my iPad
>> >
>> > On Jul 17, 2013, at 2:10 PM, Don Johnston <numa at comcast.net> wrote:
>> >
>> > > I've got the gear pump assembly from Wayne Lanza which has the
>> > > battery
>> > and the starter contactor on it.
>> > >
>> > > I'm looking at the wiring and having to run the B-leads from the
>> > alternators all the way up to the nose. It occurred to me that I if
>> > the starter contactor was on the firewall that I could run the
>> > alternators to the battery side of the starter contactor which would
>> > allow me to utilize the low gauge wire already in place between the
>> > the starter and battery contactor.
>> > >
>> > > But every Velocity that I've looked at has the both contactors in
>> > > the
>> > front.
>> > >
>> > > Just wondering anyone has their starter contactor on the firewall.
>> > >
>> > > -Don Johnston
>> > > XL-RG
>> > > _______________________________________________
>> > > To change your email address, visit
>> > http://www.tvbf.org/mailman/listinfo/reflector
>> > >
>> > > Visit the gallery! www.tvbf.org/gallery user:pw =
>> > > tvbf:jamaicangoose Check new archives: www.tvbf.org/pipermail Check
>> > > old archives: http://www.tvbf.org/archives/velocity/maillist.html
>> >
>> > _______________________________________________
>> > To change your email address, visit
>> > http://www.tvbf.org/mailman/listinfo/reflector
>> >
>> > Visit the gallery! www.tvbf.org/gallery user:pw = tvbf:jamaicangoose
>> > Check new archives: www.tvbf.org/pipermail Check old archives:
>> > http://www.tvbf.org/archives/velocity/maillist.html
>> >
>> -------------- next part --------------
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>> ------------------------------
>>
>> Message: 4
>> Date: Wed, 17 Jul 2013 13:52:04 -0500
>> From: John Dibble <aminetech at bluefrog.com>
>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>> Subject: REFLECTOR: Speed Brake
>> Message-ID: <51E6E7D4.1050905 at bluefrog.com>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> A small amount of hydraulic fluid is leaking at the back side of my speed
>> brake. Looking on the inside it seems to originate where the "cylinder"
>> connects to the brake. Does the speed brake use hydraulic fluid? If so,
>> does it come from the retract system, or is it separate?
>>
>> Thanks,
>>
>> John
>>
>>
>> ------------------------------
>>
>> Message: 5
>> Date: Wed, 17 Jul 2013 15:24:26 -0400 (EDT)
>> From: nmflyer1 at aol.com
>> To: reflector at tvbf.org
>> Subject: Re: REFLECTOR: Does anyone have their starter contactor on
>> the firewall?
>> Message-ID: <8D0513A62DEDC1F-D2C-ACF32 at webmail-d143.sysops.aol.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>>
>> Both my contactors are in the nose. Running a condiut ground with the main
>> cable running inside that. Alternator wire runs to the contact point on the
>> starter where the main cable attaches.
>>
>> Note: 2-seperate battery system.
>>
>> Kurt
>>
>>
>>
>> -----Original Message-----
>> From: Don Johnston <numa at comcast.net>
>> To: reflector <reflector at tvbf.org>
>> Sent: Wed, Jul 17, 2013 12:13 pm
>> Subject: REFLECTOR: Does anyone have their starter contactor on the
>> firewall?
>>
>>
>> I've got the gear pump assembly from Wayne Lanza which has the battery and
>> the starter contactor on it.
>>
>> I'm looking at the wiring and having to run the B-leads from the
>> alternators
>> all the way up to the nose. It occurred to me that I if the starter
>> contactor was on the firewall that I could run the alternators to the
>> battery side of the starter contactor which would allow me to utilize the
>> low gauge wire already in place between the the starter and battery
>> contactor.
>>
>> But every Velocity that I've looked at has the both contactors in the
>> front.
>>
>>
>> Just wondering anyone has their starter contactor on the firewall.
>>
>> -Don Johnston
>> XL-RG
>>
>>
>> _______________________________________________
>> o change your email address, visit
>> http://www.tvbf.org/mailman/listinfo/reflector
>> Visit the gallery! www.tvbf.org/gallery ser:pw = tvbf:jamaicangoose heck
>> new archives: www.tvbf.org/pipermail heck old archives:
>> http://www.tvbf.org/archives/velocity/maillist.html
>>
>> -------------- next part --------------
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>> ------------------------------
>>
>> Message: 6
>> Date: Wed, 17 Jul 2013 13:24:35 -0600
>> From: Scott Derrick <scott at tnstaafl.net>
>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>> Subject: Re: REFLECTOR: Does anyone have their starter contactor on
>> the firewall?
>> Message-ID: <51E6EF73.8080103 at tnstaafl.net>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> An HTML attachment was scrubbed...
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>> ------------------------------
>>
>> _______________________________________________
>> Visit the gallery! tvbf:jamaicangoose
>>
>> End of Reflector Digest, Vol 100, Issue 71
>> ******************************************
>>
>> _______________________________________________
>> To change your email address, visit
>> http://www.tvbf.org/mailman/listinfo/reflector
>>
>> Visit the gallery! www.tvbf.org/gallery
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>> Check new archives: www.tvbf.org/pipermail
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>>
>
>_______________________________________________
>To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>
>Visit the gallery! www.tvbf.org/gallery
>user:pw = tvbf:jamaicangoose
>Check new archives: www.tvbf.org/pipermail
>Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
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