CO2 rocket details
Rocket
and CO2 parts.
Puncture
assembly and set screw to hold it in CO2 support tube.
Spring
and CO2 jett.
The
exit end of CO2 support tube and a nozzle.
The
bottle cap has a 1/2" hole and the ram plug just fits snuggly into
it.
In
goes the CO2 jett and spring.
Then
you press in the puncture assembly and put the set screw in through the
slot in the support tube to hold everything together. Notice the screw
slot allow the puncture assembly to move in about 1/4". this will
puncture the CO2 jett seal when the rocket is dropped.
Stick
the nozzle in and put the CO2 assembly in the (water filled) rocket.
Screw
the cap on.
This
is the front end of the rocket. It's hard to see, but the puncture assembly
butts up to the top of the rocket.
Just
push the ram plug in and now it's ready to go. When the ram plug hits the
base of the launch guide, the bottle continues down and pushes the puncture
assembly into the CO2 jett. The spring makes sure that puncture assembly
is pulled back out of the jett. It seems to work very good. It kind of
bounces off the guide base and then the thrust kicks in and it continues
upward.