[ARC5] A pair of questions

[Craig]

Bob: On the bench, I'll use multiple switches to soften the startup 
loading on the power supply. I'm not brave enough to light the entire 
system up with a single switch....Now, the airplane may end up being 
different. I don't see any avionics switches on the callout that I have 
handy. I'll have to dig out the drawings for the power panels, as 
someone robbed the covers with all the switches long before I got the 
project.

John: The power supply sounds interesting. Can you send me a couple of 
pictures and an approximate weight to my email address? I'll run over to 
my local Fastenal and get them to give me an estimate on putting it on 
one of their trucks.  One of the guys on another board, had some stuff 
palletized and it was about 75$ to send it across a couple of states on 
a Fastenal truck. Wasn't real fast...something on the order of a week, 
but got there fine. They do it space available and store to store only.


David: Something to remember on the radio compass systems, is that the 
inverter also powers the motor(s) in the antenna(s) and all the synchos 
for the panel indicators. In my case. 1 antenna and 2 indicators.

Thanks for all the help so far,

Craig Cantwell

KF5JOT

Fairchild AT-21

42-48053 restoration

Justin, Texas


On 11/14/2017 10:06 AM, Bob Camp wrote:
> Hi
>
> One very simple question:
>
> Are you going to turn everything on with one switch? Put another way, do
> all the dynamotors spin up at the same time? Anything you can do to spread
> out the starting process will have a big impact on the surge current.
>
> Bob
>
>