[NSRCA-discussion] Arming device

[Vicente Bortone]

the ignition switch.

On Saturday, May 16, 2015, Vicente Bortone <vincebrc at gmail.com> wrote:

>
>
> On Saturday, May 16, 2015, Del R via NSRCA-discussion <
> nsrca-discussion at lists.nsrca.org
> <javascript:_e(%7B%7D,'cvml','nsrca-discussion at lists.nsrca.org');>> wrote:
>
>>  The nice thing about being brought up around GUNS.. It teaches people
>> to respect it always as though it is loaded and cocked ready to deliver its
>> physical life altering energy!!!.. < tic >
>>
>>
>>
>> ----- Original Message -----
>> *From:* David Cook via NSRCA-discussion
>> *To:* Jim Woodward ; General pattern discussion
>> *Sent:* Saturday, May 16, 2015 10:48 AM
>> *Subject:* Re: [NSRCA-discussion] Arming device
>>
>>  Just to open the can of worms from the other end.
>> Now that I have seen the damage a runaway can do to a pool table even
>> with an external arming device, I have begun to make it a common practice
>> to remove the prop from the electric planes any time I am not at the field
>> flying. Store the ammunition and the pin under two different locks. How
>> easy is it to be careless in the shop or transporting a plane. This thread
>> could just explode with stories of mishaps we have made or come way too
>> close to.
>> You just can't be too carful with these things!!!
>> DC
>>
>> On Sat, May 16, 2015 at 10:21 AM, Jim Woodward via NSRCA-discussion <
>> nsrca-discussion at lists.nsrca.org> wrote:
>>
>>>  ... Going electric induces a mental physchosis that requires everyone
>>> else to switch, then go and change the rules for glow :)
>>>
>>> Sent from my iPhone
>>>
>>> On May 16, 2015, at 9:38 AM, Keith Hoard via NSRCA-discussion <
>>> nsrca-discussion at lists.nsrca.org> wrote:
>>>
>>>   I think the YS guys should have their caller remove the fuel tank and
>>> glow plug before picking up the plane and exiting the runway  . . .
>>>
>>>
>>>
>>> *From:* NSRCA-discussion [
>>> mailto:nsrca-discussion-bounces at lists.nsrca.org] *On Behalf Of *precisionaero
>>> via NSRCA-discussion
>>> *Sent:* Saturday, May 16, 2015 8:38 AM
>>> *To:* General pattern discussion
>>> *Subject:* Re: [NSRCA-discussion] Arming device
>>>
>>>
>>>
>>> I think we should reconfigure a YS engine to drive a generator to supply
>>> electricity to the electric motor.
>>>
>>>
>>>
>>>
>>>
>>> Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone
>>>
>>>
>>>
>>> -------- Original message --------
>>>
>>> From: Peter Vogel via NSRCA-discussion
>>>
>>> Date:05/16/2015 09:31 (GMT-05:00)
>>>
>>> To: General pattern discussion , ronlock at comcast.net, David
>>>
>>> Subject: Re: [NSRCA-discussion] Arming device
>>>
>>>
>>>
>>> I think we're all in agreement, which is why the rules proposal we put
>>> forth requires a *physical* break in the circuit!
>>>
>>> Sent from Outlook <http://taps.io/outlookmobile>
>>>
>>>
>>>
>>>
>>>
>>>  On Sat, May 16, 2015 at 6:16 AM -0700, "ronlock--- via
>>> NSRCA-discussion" <nsrca-discussion at lists.nsrca.org> wrote:
>>>
>>>   I'm in agreement.
>>>
>>> Ron Lockhart
>>>
>>>
>>>  ------------------------------
>>>
>>> *From: *"David via NSRCA-discussion" <nsrca-discussion at lists.nsrca.org>
>>> *To: *nsrca-discussion at lists.nsrca.org
>>> *Sent: *Saturday, May 16, 2015 1:14:21 AM
>>> *Subject: *[NSRCA-discussion] Arming device
>>>
>>>
>>>
>>> I'm not trying to bring up a sore subject but this has been bugging me
>>> since it was up a while back. I am the senior electronics technician in the
>>> plasma physics department at the University of Wisconsin. About a third of
>>> what I do is make interlock circuits for the Madison Symmetric Torus. I
>>> know that the best way of keeping things safe is to remove the potential
>>> energy from a circuit to keep bad things from happening. The problem with
>>> depending on a circuit such as the emcotec type of disconnect or to just
>>> relying solely on the radio and ESC to keep things safe is failure modes.
>>> You can plan for all different failure types but to make it a circuit that
>>> isn't a lead brick being added to the plane there are compromises that have
>>> to be made. This leads to designing systems that may deal with only the
>>> most common types of failures. For example most common diodes and tantalum
>>> capacitors usually fail in a shorted mode, but not always. Many carbon
>>> resistors will decrease in résistance just prior to opening up. You get the
>>> idea, there are just so many possibilities and combinations that in my
>>> opinion the only real way to safe a power system is to disconnect the
>>> energy source. Ok, now I feel better that I said something.
>>>
>>>
>>>
>>> David
>>>
>>>
>>>
>>>
>>> _______________________________________________
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>>> NSRCA-discussion at lists.nsrca.org
>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>>>
>>>
>>>
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>>>
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>>>
>>
>>  ------------------------------
>>
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>>
>
> --
> Vicente "Vince" Bortone
>


-- 
Vicente "Vince" Bortone
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