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Need a mechanism to poke hole into CO2 canister
Spring-loaded system
Spring forces may be unpredictable at higher altitudes
Vulnerable to vibrations during launch
Needed to by loaded during launch, so risk of early deployment
Solenoid
Arm attached to solenoid that moves to poke hole once
Pyrotechnic system
Still contains issues with black powder
Look into finding better way to seal
Reliable on ground, but questionable at high altitude
Servo
Valves
Powered by outside source that would open valve instead of poking a hole
Avionics potentially in nose cone depending on direction of gas canister
Need to figure out if one way is more effective for parachute deployment
Issues to test for:
Leaking of CO2
Premature puncturing
Failure to puncture
Tests should take into account low temperatures at higher altitudes, forces/vibrations during flight, etc.
Weight Imbalances from co2 canisters and co2 release mechanism
COTS CO2 Canisters:
https://www.apogeerockets.com/downloads/PDFs/CD3_Manual2009.pdf
https://www.tinderrocketry.com/rocketry-co2-ejection-system (instruction manual gives bp to co2 conversion)
Preliminary Design
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