[tccrockets] Re: Tripoli Rules 2012
- From: "Ron McGough" <rrmagoo7@xxxxxxx>
- To: <tccrockets@xxxxxxxxxxxxx>
- Date: Wed, 8 Feb 2012 10:52:45 -0800
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
Like us on Facebook!
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408-499-9050
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