[tccrockets] Re: Tripoli Rules 2012
- From: James Dougherty <jafrado@xxxxxxxxx>
- To: tccrockets@xxxxxxxxxxxxx
- Date: Thu, 9 Feb 2012 14:42:21 -0800
Sure, if you want to zipper your rocket, a timer would be an easy way
to do that.
See the data-points I sent to David on that topic.
On 2/8/12, Karl Baumheckel <karlbaum@xxxxxxxxxxx> wrote:
>
>
> I am glad that you brought this up Ron. That was my experience with the
> Perfect Flight mini timer too. It did not arm with a hybrid. When I stated
> that the breakwire was better than the G switch I was refering to a
> deployment charge. Staging motors is an entirely different animal.
>
>
>
> Karl
>
>
>
>
> ----- Original Message -----
> From: "Ron McGough" <rrmagoo7@xxxxxxx>
> To: tccrockets@xxxxxxxxxxxxx
> Sent: Wednesday, February 8, 2012 10:52:45 AM
> Subject: [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:
>
>
>
> <blockquote>
>
>
> 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.
>
>
>
>
> ----- Original Message -----
> 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:
>
> <blockquote>
>
> 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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>
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>
>
>
> --
>
>
> - Regards
>
> Gene Engelgau
> KI6IBL, NAR 86770 / TRA 12243 - L3
> http://fruitychutes.com - Consumer and Aerospace Recovery Solutions
>
>
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> </blockquote>
>
> </blockquote>
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