Today's Message Index:
----------------------
1. 12:41 AM - Re: Battery cable (Gary L Vogt)
2. 05:21 AM - Re: Battery cable (Linn Walters)
3. 06:39 PM - Re: Battery cable (Gary)
4. 08:53 PM - Gravel runways (Gary L Vogt)
Message 1
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| Subject: | Re: Battery cable |
I got the wire from EDMO. It's 2AWG. It just looks like a size smaller than the
original.
Is this big enough for the Sky-Tec starter? I looked at the specs and the current
demand for the Sky-Tec exceeds that for 2AWG.
Would 1AWG wire work better?
Gary
Sent from my iPad
> On Jul 13, 2014, at 5:44 AM, Linn Walters <flying-nut@cfl.rr.com> wrote:
>
>
> Yep, #2 is what you want. Wire can look bigger/smaller due to the thickness
of the insulation. The insulation on the wire I used for the RV-10 is real thin
but it's really tough.
> You should always get wire for the airplane from an aviation source ..... it
has more individual strands that stands up to vibration better.
> Linn
>
>> On 7/13/2014 2:15 AM, Gary L Vogt wrote:
>>
>> I just bought some 2 gauge wire for the battery and starter. Seems a little
small. Definitely looks smaller than the wire I removed.
>>
>> Is 2 gauge the right size?
>>
>> Gary
>> Sent from my iPad
>>
>>
>>
>>
>>
>>
>> -----
>> No virus found in this message.
>> Checked by AVG - www.avg.com
>
>
>
>
>
Message 2
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| Subject: | Re: Battery cable |
On 7/14/2014 3:41 AM, Gary L Vogt wrote:
>
> I got the wire from EDMO. It's 2AWG. It just looks like a size smaller than
the original.
>
> Is this big enough for the Sky-Tec starter?
Yes.
> I looked at the specs and the current demand for the Sky-Tec exceeds that
for 2AWG.
Color me skeptical. It would help if you posted where you got the info
on the wires. 2 ga. MIL-W-22759/16 is what you want.
I think your confusion comes from comparing the current needs of the
starter with the current capabilities of the wire as listed in a table.
Wire size/current is rated for temperature rise in free air and bundled
..... and you just can't crank that starter long enough to get that
amount of temperature rise.
> Would 1AWG wire work better?
In some ways. There would be less voltage drop during starting so that
is better.
It's also heavier (naturally) so that is not better. 2 ga. weighs 200.9
pounds/1000' and 1 ga. weighs 253.5 pounds/1000'. Not a great weight
penalty, but why carry excess weight anyway??? It's a cost (in weight
and money) Vs. benefit (a little better cranking speed) that's not
necessary.
Put the 2 ga. in and don't fret.
The other concern is the type of lug ..... a solid or welded barrel is
the only one to use, not the ones with an open seam ..... and the type
of crimper. I used a T&B crimper on my RV-10 heavy wires ...... because
my EAA chapter has one in it's tool crib. The color coded T&B lugs are
out of my price range though!!!! You need to compress the wire in the
lug until it's as close to a solid wire as you can get. This makes an
air-tight connection and cuts down on corrosion.
Linn
>
> Gary
> Sent from my iPad
>
>> On Jul 13, 2014, at 5:44 AM, Linn Walters <flying-nut@cfl.rr.com> wrote:
>>
>>
>> Yep, #2 is what you want. Wire can look bigger/smaller due to the thickness
of the insulation. The insulation on the wire I used for the RV-10 is real thin
but it's really tough.
>> You should always get wire for the airplane from an aviation source ..... it
has more individual strands that stands up to vibration better.
>> Linn
>>
>>> On 7/13/2014 2:15 AM, Gary L Vogt wrote:
>>>
>>> I just bought some 2 gauge wire for the battery and starter. Seems a little
small. Definitely looks smaller than the wire I removed.
>>>
>>> Is 2 gauge the right size?
>>>
>>> Gary
>>> Sent from my iPad
>>>
>>>
>>>
>>>
>>>
>>>
>>> -----
>>> No virus found in this message.
>>> Checked by AVG - www.avg.com
>>
>>
>>
>>
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
>
>
Message 3
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| Subject: | Re: Battery cable |
Thanks Linn. I did a Google search and came up with a bunch of different results.
Most showed 2AWG being barely adequate. We're only talking 4 feet or so. I
will use the 2 since I already have it.
Thanks again.
Gary
AuCountry Aviation
Auburn, CA.
Sent from my iPhone
> On Jul 14, 2014, at 5:20 AM, Linn Walters <flying-nut@cfl.rr.com> wrote:
>
>
>> On 7/14/2014 3:41 AM, Gary L Vogt wrote:
>>
>> I got the wire from EDMO. It's 2AWG. It just looks like a size smaller than
the original.
>>
>> Is this big enough for the Sky-Tec starter?
> Yes.
>> I looked at the specs and the current demand for the Sky-Tec exceeds that
for 2AWG.
> Color me skeptical. It would help if you posted where you got the info on the
wires. 2 ga. MIL-W-22759/16 is what you want.
> I think your confusion comes from comparing the current needs of the starter
with the current capabilities of the wire as listed in a table. Wire size/current
is rated for temperature rise in free air and bundled ..... and you just
can't crank that starter long enough to get that amount of temperature rise.
>> Would 1AWG wire work better?
> In some ways. There would be less voltage drop during starting so that is better.
> It's also heavier (naturally) so that is not better. 2 ga. weighs 200.9 pounds/1000'
and 1 ga. weighs 253.5 pounds/1000'. Not a great weight penalty, but
why carry excess weight anyway??? It's a cost (in weight and money) Vs. benefit
(a little better cranking speed) that's not necessary.
>
> Put the 2 ga. in and don't fret.
>
> The other concern is the type of lug ..... a solid or welded barrel is the only
one to use, not the ones with an open seam ..... and the type of crimper.
I used a T&B crimper on my RV-10 heavy wires ...... because my EAA chapter has
one in it's tool crib. The color coded T&B lugs are out of my price range though!!!!
You need to compress the wire in the lug until it's as close to a solid
wire as you can get. This makes an air-tight connection and cuts down on
corrosion.
> Linn
>>
>> Gary
>> Sent from my iPad
>>
>>> On Jul 13, 2014, at 5:44 AM, Linn Walters <flying-nut@cfl.rr.com> wrote:
>>>
>>>
>>> Yep, #2 is what you want. Wire can look bigger/smaller due to the thickness
of the insulation. The insulation on the wire I used for the RV-10 is real
thin but it's really tough.
>>> You should always get wire for the airplane from an aviation source ..... it
has more individual strands that stands up to vibration better.
>>> Linn
>>>
>>>> On 7/13/2014 2:15 AM, Gary L Vogt wrote:
>>>>
>>>> I just bought some 2 gauge wire for the battery and starter. Seems a little
small. Definitely looks smaller than the wire I removed.
>>>>
>>>> Is 2 gauge the right size?
>>>>
>>>> Gary
>>>> Sent from my iPad
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> -----
>>>> No virus found in this message.
>>>> Checked by AVG - www.avg.com
>>
>>
>>
>>
>>
>>
>> -----
>> No virus found in this message.
>> Checked by AVG - www.avg.com
>
>
>
>
>
Message 4
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Twice in two days two separate customers (Both have multiple partners ownin
g the plane) have called to tell me one of their partners has landed on gra
vel runways. -Both sustained significant damage to the horizontal. -One
will likely need to be reskinned.
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