this is my knex rocket car .to use you put a co2 cartridge in it a open when its in.
At first when i looked at this i as like oh its a n00b car, but when i clicked on it and read the description it said co2 and i was like, this aint no n00b car. Good work!!!
Its fine but it needs more parts. good simple structure.
Cool! Nice job! =)
 wow, it looks.....
A co2 cartridge is a small metal cylinder with compressed gas inside. These come in many different sizes and are usually used to power bb guns.
can this thing ride with a real rocket thing, cause i'm dutch and I don't know what a co2 cartridge is<br />
srry pics didnt upload

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