Wire Gauge Sizing

Discussion in 'Instruments / Avionics / Electrical System' started by GESchwarz, Sep 6, 2019.

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  1. Sep 6, 2019 #1

    GESchwarz

    GESchwarz

    GESchwarz

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    I am 10.5 years into my build and I am about to start doing some wiring for the first time. What wire gauge do I need to power my navigation lights out at the wingtips?

    Does anyone have a table of wire gauges for typical systems of a general aviation aircraft?
     
  2. Sep 6, 2019 #2

    N804RV

    N804RV

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  3. Sep 6, 2019 #3

    TFF

    TFF

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    A.C. 43-13 has some charts. My guess is probably 18g for most of a 12v system 22 if it was 24v.
     
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  4. Sep 6, 2019 #4

    N804RV

    N804RV

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  5. Sep 6, 2019 #5

    pictsidhe

    pictsidhe

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    It depends on the current and voltage. What are light specs?
     
  6. Sep 6, 2019 #6

    GESchwarz

    GESchwarz

    GESchwarz

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    Thank you! I have A C 43-13. I've always thought of it as a mechanic's reference than an engineer's.
     
  7. Sep 6, 2019 #7

    BJC

    BJC

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    I think of it as "Here's what we (the FAA) think works …"


    BJC
     
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  8. Sep 6, 2019 #8

    N804RV

    N804RV

    N804RV

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    Wire guage vs amps vs length is pretty standard stuff. It’s like building code, you’re either in compliance or not. Even experimental aircraft builders are expected to to use “acceptable methods and practices”.
     

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