[balloon-makers] Parachute Vent and Centering lines

[Keith Sproul <private e-mail address>]

I have the nylon for my balloon, and the load tape (from Bally 
Ribbons) came today!! My next step is cutting out the pattern..  I 
CAN'T WAIT!!


One thing that I need to know is what kind of small rope do you use 
for the rigging for the parachute valve?  Each attachment point gets 
two 'strings' attached to it.  One that goes down to the apex and 
then to the RED LINE, just exactly like a parachute, and the other 
that goes over to the edge of the balloon, called the centering line.

When I look at this thin cord on commercial balloons, I can't really 
tell what it is..  It is generally smaller than parachute cord, but 
what is it made of?  I would think that it needs to be something more 
heat resistant than Nylon and not as stretchy either.  Is it 
Polyester? or what exactly is it?   And, where do I buy it?

Keith Sproul



-- 
Keith Sproul			Ham Radio WU2Z
ksproul@vger.rutgers.edu	732 821-4828
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