[tccrockets] Re: Tripoli Rules 2012

James and others,

I consider this a very important issue concerning the breakwire method of 
arming electronics. I've had to use this method when arming one of the Perfect 
Flight mini timers that also uses a G switch, seems the Timer won't arm when 
used while flying a hybrid. Neither will the Missle Works Pet2 timer, at least 
not the last time I checked. That being said I'm curious if it is acceptable to 
use a breakwire as long as an acceptable on-off switch is also used to power 
the system up once the rocket is upright on the pad? It seems to me that it 
can't get any safer than that.

Just to let you all know at ROC's last big launch we had an incident with this 
same problem concerning the use of a timer igniting air-starts. Seems the flier 
didn't use any type of on-off switch or break wire for his G-switch activated 
timer (Perfect Flight). He had installed the batteries and had the rocket 
laying on the ground when he went to hook up the air start igniters, bet you 
can guess what happened next. Yup, the timer had activated and timed out while 
the rocket was laying on it's side so when the flier hooked the wires together 
it lit and luckily it only lit the one he was hooking up.

Doesn't matter what rules are out there, fliers and RSO's need to either know 
how these electronics work and if they don't then get someone that does to 
inspect their use.

Ron McGough
BDR
  ----- Original Message ----- 
  From: James Dougherty 
  To: tccrockets@xxxxxxxxxxxxx 
  Cc: tccrockets@xxxxxxxxxxxxx 
  Sent: Wednesday, February 08, 2012 12:36 AM
  Subject: [tccrockets] Re: Tripoli Rules 2012


  No you can't and don't even try

  Sent from my iPhone

  On Feb 7, 2012, at 5:22 PM, Karl Baumheckel <karlbaum@xxxxxxxxxxx> wrote:


    That is a good question.  I would say that you could still use a breakwire 
for timer activation.  And in my opinion this is a more reliable method than 
the G switch for what it's worth.






----------------------------------------------------------------------------
    From: "SCOTT B" <triptechb@xxxxxxxxx>
    To: tccrockets@xxxxxxxxxxxxx
    Sent: Tuesday, February 7, 2012 2:15:59 PM
    Subject: [tccrockets] Re: Tripoli Rules 2012

          Would this include activation of avionics using a breakwire for low 
speed/g-force launches, or just using breakwires for lighting motors?  
          Scotty B.

          --- On Tue, 2/7/12, AiRobert <airobert@xxxxxxxxxxxxx> wrote:


            From: AiRobert <airobert@xxxxxxxxxxxxx>
            Subject: [tccrockets] Re: Tripoli Rules 2012
            To: tccrockets@xxxxxxxxxxxxx
            Date: Tuesday, February 7, 2012, 11:01 AM


            Yes these are switches used to for launch detect to start a second 
stage.




--------------------------------------------------------------------

            From: tccrockets-bounce@xxxxxxxxxxxxx 
[mailto:tccrockets-bounce@xxxxxxxxxxxxx] On Behalf Of Gene Engelgau
            Sent: Tuesday, February 07, 2012 8:58 AM
            To: tccrockets@xxxxxxxxxxxxx
            Subject: [tccrockets] Re: Tripoli Rules 2012



            I think a launch controller is a type of ignition system.  They may 
be referring to cluster and staging ignition?  But yes, the TCC controller is 
great as is...



            -G

            On Tue, Feb 7, 2012 at 8:24 AM, Jack Garibaldi 
<jackgaribaldi@xxxxxxx> wrote:

            I still haven’t read it all but either way our launch system does 
not use none of these 



            Jack G



            From: tccrockets-bounce@xxxxxxxxxxxxx 
[mailto:tccrockets-bounce@xxxxxxxxxxxxx] On Behalf Of Gene Engelgau
            Sent: Tuesday, February 07, 2012 5:57 AM
            To: tccrockets@xxxxxxxxxxxxx
            Subject: [tccrockets] Re: Tripoli Rules 2012



            It references the switched in regards to motor ignition and seems 
to refer to the launch controller:



            2-12.6 A rocket motor shall not be ignited by any of the following:

            a. A switch that uses mercury.

            b. “Pull wires” that disconnect or complete a circuit.

            c. “Pressure roller” switches



            ----



            It does not make reference to av-bar arming switches.



            -G







            On Mon, Feb 6, 2012 at 8:38 PM, Jack Garibaldi 
<jackgaribaldi@xxxxxxx> wrote:

            Hey All I have attached the 2012 Tripoli sanctioned rules and we 
are a Tripoli club so everyone needs to read them, print them carry them or 
however you want to help enforce and use our newest rules, I will get time this 
week to really study them but I noticed a couple of quick ones like



            Section 2-18 Participation now reads in part:

            "Non-HPR Fliers are allowed in the High Power Launch Area if 
escorted by 

            a HPR Flier. A HPR Flier may escort and be accompanied by not more 
than 

            two (2) non-HPR fliers in the High Power Launch Area. The HPR flier 

            escort is required to monitor the actions of the escorted non-HPR 

            fliers, and the escort is fully responsible for those actions and 
for 

            the safety of those escorted."



            There are other changes.  For example, the use of mercury switches, 
pull 

            wires, and roller switches have now been banned.  This means there 
are 

            various products by different manufactures that can no longer be 
used 

            for air-starts.





            I don’t want to due a review until I have had time to look the 
complete pages over.



            Jack G







            -- 

            - Regards

            Gene Engelgau
            KI6IBL, NAR 86770 / TRA 12243 - L3
            http://fruitychutes.com - Consumer and Aerospace Recovery Solutions

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            408-499-9050









            -- 

            - Regards

            Gene Engelgau
            KI6IBL, NAR 86770 / TRA 12243 - L3
            http://fruitychutes.com - Consumer and Aerospace Recovery Solutions

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