[NSRCA-discussion] Safety Proposal amended

Thu Mar 15 12:30:22 AKDT 2012

Earl,
   I agree with you 100% and the conversation was as such with him.  I gave
examples of the Anderson Poll Maxx Products disarming plug which actually
does physically break the circuit and was told no.  I do understand how the
Emcotec would not work.  That does not physically break the connection and,
more importantly, fails closed.  I've been actually talking a little bit to
Maxx Prod guys about getting Emcotec to develop and fail open device.  I'd
like to have one if for no other reason than it looks cool!  Sorry, I had
to say it.

Most important is to note that we are working on AMA proposals and not
FAI.  I was just trying to make sure people understood that phraseology was
not being structured into the proposal.

On Thu, Mar 15, 2012 at 3:21 PM, ehaury <ejhaury at comcast.net> wrote:

> **
> Scott
>
> There may be some terminology issues here. A disarming "SWITCH" was
> determined to not meet the disconnect requirements, as a switch makes /
> breaks a circuit internally making it impossible for an official to quickly
> determine which position is on or off. OTOH, an external disarming "PLUG"
> or "KEY" or "CONNECTOR"  doesn't have that problem.
>
> Derek may have had further discussions with the F3A committee regarding
> this since the WC - I can only speak to what the official interpretation
> was at the Worlds.
>
> Earl
>
> ----- Original Message -----
> *From:* Scott McHarg <scmcharg at gmail.com>
> *To:* General pattern discussion <nsrca-discussion at lists.nsrca.org>
> *Sent:* Thursday, March 15, 2012 3:13 PM
> *Subject:* Re: [NSRCA-discussion] Safety Proposal amended
>
> I'd like to see it as well Earl.  This was verbatim from Derek Koopowitz.
> I had to rely on him because what I originally wanted to say in public, I
> ran passed Derek and he said that was not the case.  He said you may use a
> disarm plug but that did not satisfy the FAI requirement to display
> disconnected batteries.
>
> On Thu, Mar 15, 2012 at 3:09 PM, ehaury <ejhaury at comcast.net> wrote:
>
>> **
>> Scott
>>
>> Where do you find this interpretation?
>>
>>  "A disarm plug is NOT allowed to demonstrate a disconnect - there has to
>> be a physical disconnect of the wiring and must be seen by an official."
>>
>> This was not the case for the 2011 WC. I participated in the TM meeting
>> where it was initially stated that both battery leads would need to be
>> disconnected. After some discussion the jury, ED & TD (me) determined that
>> one lead was sufficient and it didn't matter if it was internal or
>> external. Most of the E competitors made the connect / disconnect
>> internally, often with the person doing it exposed to the prop arc. Models
>> were also removed from the runway, so as not to impede the next competitor,
>> before making the EoF disconnect (before returning to the pits). I was one
>> of the officials watching for this.
>>
>> If the quoted interpretation is official, then so be it - but I'd like to
>> see the publication.
>>
>> Earl
>>
>>
>>  ----- Original Message -----
>> *From:* Scott McHarg <scmcharg at gmail.com>
>> *To:* General pattern discussion <nsrca-discussion at lists.nsrca.org>
>> *Sent:* Thursday, March 15, 2012 12:27 PM
>> *Subject:* [NSRCA-discussion] Safety Proposal amended
>>
>> With a passing vote of the NSRCA BoD, we respectfully submit to you the
>> new Safety Proposal.  Essentially, the Safety Proposal that is currently
>> with the AMA is being retracted and two new proposals put in its place.
>>  The first one is simply the Fail-safe proposal that was part of the
>> submitted Safety Proposal.  Then, the second new proposal will replace
>> 6.9(a) as 6.9.1 and *directly quoted and out of the current FAI Sporting
>> Code*.  The referred section is on page 16 in 5.1.11 of the FAI Sporting
>> Code for 2012.  Please note that in FAI, in order to follow the rule, the
>> disconnect must happen right after landing before the helper picks up the
>> plane.  A disarm plug is NOT allowed to demonstrate a disconnect - there
>> has to be a physical disconnect of the wiring and must be seen by an
>> official.  Interesting huh!
>>
>> Before anyone says it, I disagree that the arming plug does not
>> constitute a physical break in the wiring.  Through some consideration and
>> advice from people that have run the Worlds, the plug is external and does
>> not constitute proof that the physical connection internally has happened.
>>  That's the FAI rule.  As submitted, that part is *not* written into the
>> proposal.  It is simply the direct quote from the FAI Sporting Code.  Here
>> is the exact verbiage of the new proposals as submitted to the AMA.  I
>> don't know when AMA will get the physical proposals up on their site.
>>
>> *New Proposal for 6.9*
>>
>> 6.9 – Propeller safety - All contestants using radio equipment with a
>> failsafe function shall be able to demonstrate that propeller rotation will
>> either stop or reduce to an idle RPM when the transmitter is powered down
>> while the aircraft receiver system is powered on.  Idle RPM for this
>> purpose is defined as an RPM during which the model will remain stationary
>> when already motionless.
>>
>> *New Proposal for 6.9.1*
>>
>> 6.9.1 – For electric powered models, the electric power circuit(s) must
>> not be physically connected, before the starting time is begun and must be
>> physically disconnected immediately after landing.
>>
>> --
>> *Scott A. McHarg*
>>
>>  ------------------------------
>>
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>
>
>
> --
> *Scott A. McHarg*
>
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-- 
*Scott A. McHarg*
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