[altusmetrum] Q2G2 Igniters

[Dan Moses (Home)]

We have very successfully used both Q2G2 ingniters and small 
incandescent Christmas tree light bulb filaments with our Altusmetrum 
altimeter.  With the easy availability of Quest igniters, we don't even 
try to keep electric matches around anymore.  It is the wrong season to 
go find any of the Christmas tree lights, but if you or someone you know 
has some in the attic, they are a quick and easy solution. Just break 
off the tip (I use a Dremel cut off tool to make it nice, but pliers 
will do), fill the remainder with black powder and insert into your 
usual ejection charge holder.  We use independent, disposable plastic 
vials for our ejection charges, so it is easy to cut a hole in the 
bottom and hot glue what remains of the light bulb into the vial.  
Should also work similarly with the black powder in plastic baggie 
approach.  The telemetrum allows you to test the ejection charge on the 
ground via radio link.
-Dan & Magda
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