Steve,

I make my own. very easy, and quite reliable, very repeatable, etc.

Do a search on the adept website for their timers, and check out the =
mechanical system they use (a swinging arm, and a microswitch.)
I also use another system (even smaller and cheaper) which is a little =
harder to make. It's based on a spring from a pen, a small sleeve of =
plastic, and a tinned wire. I can explain it if you need, but for =
beginnigs I'd suggest the Adept system.
Second question.. do you really NEED a G-Switch? The simplest sytems use =
break wires, pull pins, etc. These systems sometimes are the ONLY system =
that works (particulalry for long burn, slow engines)
If you need commercially made G-Switches, get yourself to a supplier like =
Jim Ball, or some of the other amatuer suppliers.. be warned, a MIL-SPEC =
switch will set you back around $30+ USD.

HTH,
Des Bromilow
Queensland Rocketry Assoc.

>>> steve_piclist@YAHOO.COM 9/07/03 5:22:49 am >>>
Friends,

I am trying to find a company that sells "G-SWITCHES" that are used in =
model rocket timers. Do companies make these, I keep seeing references to =
them on rocketry related sites, but doing a search with GOOGLE turns up no =
suppliers of these things. I can't even find an explanation as to what =
they do exactly.

Any help much appreciated.

Thanks.
Steve



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