[ARC5] A pair of questions

[Bob kb8tq]

Hi

If the aircraft is in flying shape then it’s got generators onboard to supply *way* more power than 
this gear will pull. Powering it up on the flight line is a “haul over a cart” sort of thing. 

Bob

> On Nov 16, 2017, at 8:46 AM, Craig <cvcantwell at verizon.net> wrote:
> 
> Hi Bob: The bench power is just for getting the radios working before building the aircraft harnesses and installing them. The Fairchild will be a full up flying restoration, so dragging a 220 power cord would be a little difficult. About the only thing my flight manual says on powering the radios is to turn receiver control switches and transmitter power switches to the on position.
> 
> Peter: Unfortunately, having big enough batteries in my office is out. SLA's with enough capacity are quite expensive and weigh a couple of hundred pounds and flooded cell batteries are a no go due to gassing. If I were doing this out in the shop, I've got other power options available.
> 
> 
> On 11/16/2017 07:14 AM, Peter Gottlieb wrote:
>> A big battery can put out a whole lot of current, even thousands of amps, for startup of big dynos and other gear. I’ve seen really beefy surplus contactors.  You may want to consider a big battery with a charger/supply that can handle running load plus some to bring back up the battery after each startup.
>> 
>> 
>> Peter
>> 
>>> On Nov 16, 2017, at 7:55 AM, Bob kb8tq <kb8tq at n1k.org> wrote:
>>> 
>>> Hi
>>> 
>>> If you are going to try to power essentially an entire airplane, you need to think pretty big
>>> in terms of supplies. It’s a good bet that there *were* disconnects on the real plane for
>>> the various electrical bits and pieces. It’s not clear to me that they were intended for anything
>>> other than occasional use (as opposed to part of the normal startup procedure).
>>> 
>>> Do you have (or can you get) a 240V circuit into the area the plane demo will be in?
>>> 
>>> Bob
>>> 
>>> 
> 
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