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

[ronlock at comcast.net]

It seem likely that given hundreds/thousands of arm/disarm cycles, there will be a few rare instances of 
pilot/caller distraction or miss communication.  The presence of a visible disconnect gives us an 
opportunity to correct it. 
Ron Lockhart 
----- Original Message -----

From: "Ron Hansen via NSRCA-discussion" <nsrca-discussion at lists.nsrca.org> 
To: "Dansy44" <dansy44 at gmail.com>, "General pattern discussion" <nsrca-discussion at lists.nsrca.org> 
Sent: Sunday, February 22, 2015 9:13:15 PM 
Subject: Re: [NSRCA-discussion] How to safely arm/disarm your motor packs? 



I use an arming plug. 

  

One thing no one is considering is that your caller may not know how or have the correct tools to open your canopy to disarm your ESC. 

  

So then you have to trust the pilot and caller to disarm the ESC before they get distracted by talking with judges or spectators. 

  

That is why I like an external arming plug or battery cable on the outside of the plane. 

  

Most callers know to remove an arming plug as they pickup the plane to carry it back. 

  

My 2 cents. 

  


From: NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Dansy44 via NSRCA-discussion 
Sent: Sunday, February 22, 2015 9:02 PM 
To: Jon Lowe; General pattern discussion 
Subject: Re: [NSRCA-discussion] How to safely arm/disarm your motor packs? 


  

Ahahah no thank's, I will keep using my JETI Mezon ;) 



Sent from Daniel iPad 2 



> On Feb 22, 2015, at 18:47, Jon Lowe via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote: 
> 
> Use an OS ESC, then you don't worry about sparks!On Feb 22, 2015 6:33 PM, John Fuqua via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote: 
>> 
>> Do not recommend power poles where they would spark when connecting the battery.   There is only a small surface area of contact.  Over time they will build up surface corrosion which causes high resistance which causes voltage drop which causes apparent power loss.   Ask me how I know this to be true!!! 
>> 
>>  
>> 
>> From: NSRCA-discussion [ mailto: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 
>> 
>> _______________________________________________ NSRCA-discussion mailing list NSRCA-discussion at lists.nsrca.org http://lists.nsrca.org/mailman/listinfo/nsrca-discussion 
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