JB Soar
Joined: 19 Apr 2019
Posts: 20
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 Posted: Mon May 24, 2021 2:01 pm Post subject: "Contactor Questions" , battery in the trunk, now Ground po |
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Is this external power receptacle on a Western airplane? Or a Yak/CJ?
On Mon, May 24, 2021 at 12:27 PM Bob Verwey <bob.verwey(at)gmail.com (bob.verwey(at)gmail.com)> wrote:
| Quote: | Thanks for the responses to my query....I now have the right solution.
Any recommendations as to how to tie this receptacle into the schematic?
[img]cid:ii_kp2ux4b70[/img]
More specifically the polarity relay that is indicated.
Best Regards,Bob Verwey
082 331 2727
[img]https://docs.google.com/uc?export=download&id=0B5d7rgAInTuTUUZsUjY4QmJsdVU&revid=0B5d7rgAInTuTdDJDaXRFZVh3b3lMa3FWL0s3MFdzc01YRlNvPQ[/img]
On Sun, 23 May 2021 at 19:20, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
| Quote: | At 11:57 PM 5/19/2021, you wrote:
| Quote: | This is kinda related to contactors...
On the BD4 that I am rebuilding, the battery is behind the baggage compartment, with a really fat wire running up to the firewall.Â
IO 470 engine so lots of amps required for start.
Is there a recommended contactor placement/battery disconnect protocol out there?
I'm thinking safety in the event of an incident which might short out the fat wire to the fuselage. |
Battery contactor located as close as practical
to battery; starter contactor as close as practical
to starter. FAT wire connects battery contactor
to starter contactor and main bus feeder.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
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