[NSRCA-discussion] How to safely arm/disarm your motor packs?

[Peter Vogel]

An arming plug absolutely DOES allow you to see that the battery is
disconnected from the system.  Of course the battery is plugged in inside
the canopy, but the arming plug represents a physical break in the circuit
that prevents current from flowing to the ESC.

Peter+

On Sun, Feb 22, 2015 at 2:39 PM, Atwood, Mark via NSRCA-discussion <
nsrca-discussion at lists.nsrca.org> wrote:

>  I completely agree with "seeing" the disconnect.  Depending on one
> circuit to protect another seems folly.  BUT... An arming plug does NOT
> allow you to SEE that the battery is disconnected. Period.  It's one of the
> reasons that the rule didn't pass the committee.  Exterior bullets are
> better... But you still can't see that the battery is disconnected without
> opening the canopy and seeing the battery.
>
>
>
> Sent from my average intelligence  phone
>
>
> On Feb 22, 2015, at 5:34 PM, John Ford via NSRCA-discussion <
> nsrca-discussion at lists.nsrca.org> wrote:
>
>   I've seen too many "radio arming" incidents in my day...
> If I was CD'ing a contest, I'd need to trust that 20 pilots with 15
> different radios, and 20 different planes, have radios that are all 100%
> reliable, using proprietary devices that are 100% correctly designed, and
> that all 20 pilots have applied 100% proper expertise to programming the
> radios and setting up the devices.
> If I am 5% wrong on  any of the above, someone on my flight line is at
> risk of ending the day at the ER.
>
>  I agree with the Nats line Chiefs..."I need to see your disconnect, or
> you can't fly on my line".
>
>  J
>
> Sent from my iPhone
>
> On Feb 22, 2015, at 17:15, David Harmon via NSRCA-discussion <
> nsrca-discussion at lists.nsrca.org> wrote:
>
>   + several on that from me.
>
>
>
>
>
>
>
> *David Harmon*
>
> *Sperry, OK*
>
>
>
> *From:* NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org
> <nsrca-discussion-bounces at lists.nsrca.org>] *On Behalf Of *Daniel Dupont
> via NSRCA-discussion
> *Sent:* Sunday, February 22, 2015 4:04 PM
> *To:* General pattern discussion
> *Subject:* Re: [NSRCA-discussion] How to safely arm/disarm your motor
> packs?
>
>
>
> Hello,
>
>
>
> I don’t used one and will never do unless it become a rule…..theres no
> reason to use one, instead I have a throttle that has a safety switch
> assigned to on my Jeti radio, and that lock the throttle to no output and
> my radio will not even power up unless that switch and others are in a safe
> position, determined by me which I do program on all my planes even the
> jet/edf planes.
>
>
>
> As far as connection with a 10S or more….I used Power Pole connector and
> see no problems with them connecting directly.
>
>
>
> To me a arm/disarm switch/connector is just another possible point of
> failure and I try to keep them at the minimum in my setup.
>
>
>
> Regards
>
>
>
> Daniel on MacBook Pro
>
>
>
> *From: *lucky macy via NSRCA-discussion <nsrca-discussion at lists.nsrca.org>
> *Reply-To: *lucky macy <luckymacy at hotmail.com>, General pattern
> discussion <nsrca-discussion at lists.nsrca.org>
> *Date: *Sunday, February 22, 2015 at 2:11 PM
> *To: *"nsrca-discussion at lists.nsrca.org" <nsrca-discussion at lists.nsrca.org
> >
> *Subject: *[NSRCA-discussion] How to safely arm/disarm your motor packs?
>
>
>
>  Hope the title isn't confusing nor do I wish to start any kind of
> philosophical 'war' on pit area safety, etc.
>
> I hear there are 10S pattern setups that don't use an external arming
> plug.  That seems unsafe to me to have the batteries connected to the motor
> without an external physical circuit breaker but I'm probably overlooking
> some capability that can be set up using a Futaba 14MZ.  With the advanced
> planes that are a little awkward to a carry around armed and where the
> hatch has to be screwed into the fuse for extra canalyzer security it seems
> like an accident waiting to happen this way.
>
> So for those that know how to relatively safely set this up could you pass
> on the formula?  My new Mythos doesn't have an external arming plug and I'm
> beginning to think I made a mistake.
>
> thx,
> lucky
>
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-- 
Director, Fixed Wing Flight Training
Santa Clara County Model Aircraft Skypark
Associate Vice President, Academy of Model Aeronautics District X
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