[NSRCA-discussion] Arming plug and Failsafe

[Ed Alt]

Hi Ron:
It takes some additional circuitry to determine when to light the LED to give a go/no go indication based on an acceptable battery voltage / state of charge. It's not that anything would run hot, it's easy enough to build something that performs the function and runs cool, but it's more than a resistor and an LED.
Ed
Date: Thu, 28 May 2015 01:25:08 +0000
From: ronlock at comcast.net
To: ed_alt at hotmail.com; nsrca-discussion at lists.nsrca.org
Subject: Arming plug and Failsafe

I'm in if you have any thoughts of marketing one.
In mean time, how much fuss is it to come up with a part number
for the resistor & LED?  Is resistor gonna get hot?
This raises question of at what voltages will LED be on?
We want it on, in the case pilot runs batts way too low, as
in loaded a used set and got a third of the way thru sequence.
I guess nothing is as simple as it first appears.
In my Bravo, given large canopy, LED will have to mount in front of
firewall, or behind canopy.
 
I'm still interested in an LED that would confirm installed batts
are above 20v, to prevent installing a lightly or heavily used set.
Later,  Ron




From: "Ed Alt via NSRCA-discussion" <nsrca-discussion at lists.nsrca.org>
To: "Vicente Bortone" <vincebrc at gmail.com>
Cc: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
Sent: Tuesday, May 19, 2015 11:57:16 AM
Subject: Re: [NSRCA-discussion] Arming plug and Failsafe



In its simplest form, It's just a resistor and an LED.





On May 19, 2015, at 11:55 AM, Vicente Bortone <vincebrc at gmail.com> wrote:




I agree with Ed.  I think the 50 ft could be increases to 100 ft. It is just amazing how bright is that LED. Ok Ed,  You got a new product to make.  The ARMING LED. 

On Tue, May 19, 2015 at 10:45 AM Ed Alt via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote:



Not with the LEDs I use.  You can see them at 50 feet on a bright day.






On May 19, 2015, at 11:44 AM, Jay Marshall via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote:






No - Difficult to reliably see LED in bright sunlight ….
 

Jay Marshall
 


From: NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Jas via NSRCA-discussion
Sent: Tuesday, May 19, 2015 11:26 AM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] Arming plug and Failsafe
 

Nice idea, light weight and probably easy to do. 


Sent from my iP




On May 19, 2015, at 10:49 AM, Rudy via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote:


All this rhetoric is making us aware of electrical safety issues in pattern flying. That’s good in itself whether you use an arming device or use a switch on your radio. Redundant systems: arming and radio switch are safer still. They both work when used.
 
Someone mentioned how can you tell if the plan is energized. Hmm, how about an LED light at the top of the plan just behind the canopy that is lit when the system is energized. Oh my, that’s another worm for the cam.
 
¿Por Qué No?
 
 


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-- 
Vicente "Vince" Bortone

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