REFLECTOR: Poll: Alternate firewall voltage regulator locations

[Don Johnston]

The gear bulkhead is certainly a shorter run than to the upper, inside of
the firewall (where I've seen a few VR's).

I have ZERO room in the nose, so it's going to either be on the firewall
(hot or cold side) or on the gear bulkhead. Malcolm suggested putting some
nutplates on a sheet of cured fiberglass and bonding that to the center
spar shearweb.

These are the decisions that end up killing tons of time for me. I keep
going from one approach to another but never actually doing anything. :-(

-Don


On Fri, Sep 13, 2013 at 7:03 PM, Don Johnston <don at johnston.org> wrote:

> The gear bulkhead is certainly a shorter run than to the upper, inside of
> the firewall (where I've seen a few VR's).
>
> I have ZERO room in the nose, so it's going to either be on the firewall
> (hot or cold side) or on the gear bulkhead. Malcolm suggested putting some
> nutplates on a sheet of cured fiberglass and bonding that to the center
> spar shearweb.
>
> These are the decisions that end up killing tons of time for me. I keep
> going from one approach to another but never actually doing anything. :-(
>
> -Don
>
> On Fri, Sep 13, 2013 at 4:18 PM, Brett Ferrell <reflector at velocityxl.com>wrote:
>
>> **
>> That'd probably work, but it's awfully long runs to the alternator.   Is
>> there no space at all in the back?  I'd be tempted to put it on the hot
>> side of the firewall and provide cooling.  What about on the side of the
>> fuselage, but behind your false bulkhead?  Should have a couple of inches
>> there, right?
>>
>> --
>>  Brett Ferrell
>>  reflector at velocityxl.com
>>
>>
>> On Fri, Sep 13, 2013, at 03:44 PM, Don Johnston wrote:
>>
>> Seems like many have their voltage regulators on the upper, inside,
>> firewall. But I'm running low on room in that location.
>>
>> Wondering what other locations have been used. I was thinking on the
>> forward side of the landing gear bulkhead (XL-RG).
>>
>>  -Don
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