LOL! I don't use the timer for deployment anymore. I only ever used it on small H motor rockets. I liked it because it is small but there are better alternatives now. ----- Original Message ----- From: "James Dougherty" <jafrado@xxxxxxxxx> To: tccrockets@xxxxxxxxxxxxx Sent: Thursday, February 9, 2012 2:42:21 PM Subject: [tccrockets] Re: Tripoli Rules 2012 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: > > > > > > > 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 > > > Like us on Facebook! > > > Follow us on Twitter! > 408-499-9050 > > > > > > > > > > > -- > > > - Regards > > Gene Engelgau > KI6IBL, NAR 86770 / TRA 12243 - L3 > http://fruitychutes.com - Consumer and Aerospace Recovery Solutions > > > Like us on Facebook! > > > Follow us on Twitter! > 408-499-9050 > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.455 / Virus Database: 271.1.1/4193 - Release Date: 02/06/12 > 19:34:00 > > > > > </blockquote> >