Soda Bottle Rocket.

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Introduction: Soda Bottle Rocket.

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A simple soda bottle rocket launcher using coathanger wire, an inner tube, and a soda bottle.

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    63 Discussions

    0
    malchermes
    malchermes

    9 years ago on Introduction

    instead of the inner tube just use a rubber cork and a tire valve, its less expensive and doesnt leak at all. you drill through the center of the cork and shove the tire valve in, it works great. you can get the tire valve at a pep boys or auto store for less than $3. and you can get a rubber cork at any hardware store for a dollar or even less.

    0
    MasterOfNone
    MasterOfNone

    12 years ago on Introduction

    Did anyone actually build one of these launchers? It seems like a great idea, but when I made the "plug" by wrapping a strip of inner tube around the tire valve, I found that it leaks at the little gap formed at the end of the strip of rubber. Anyone solved this problem?

    0
    RocketPenguin
    RocketPenguin

    Reply 9 years ago on Introduction

    The way I did it is by using a bigger mouthed bottle, wound the rubber a little smaller than the mouth. After that I cut two three 1inch rings of inner tube and put it on it.



    P.S.If you need help just ask.

    0
    dj whatever
    dj whatever

    Reply 12 years ago on Introduction

    try to glue the inner tube with glue that dries in seconds I haven't tried that but it's a good idea.

    0
    MasterOfNone
    MasterOfNone

    Reply 12 years ago on Introduction

    Thanks for the reply. I think you'll still have a problem with the little "step" that forms from the end of the rubber coil, even if it's glued.

    0
    dj whatever
    dj whatever

    Reply 12 years ago on Introduction

    well then try it with a wine cork or electrical tape

    0
    MasterOfNone
    MasterOfNone

    Reply 11 years ago on Introduction

    Yeah, sure. I'm just trying to see if anyone actually made it work "as written."

    0
    Florida61
    Florida61

    13 years ago

    What psi should u luanch it at?

    0
    paper warrior
    paper warrior

    Reply 13 years ago

    about 60 they explode at 70

    0
    jridley
    jridley

    Reply 10 years ago on Introduction

    I've pumped them to bursting and they typically go at 160. Some make it higher than that. The lowest I've ever seen one blow is about 130.

    0
    BOOM5601
    BOOM5601

    Reply 11 years ago on Introduction

    Only if you are using a bottle tht isn't designed to hold a carbonated drink.

    0
    inventinator
    inventinator

    Reply 11 years ago on Introduction

    no. we just had to do this for a school project and we launched them at 90 psi. it will withstand that.

    0
    Mattrox
    Mattrox

    Reply 11 years ago on Introduction

    I made one of these and got it up to 120 psi

    0
    Aar000n3y
    Aar000n3y

    11 years ago on Introduction

    The 'trigger' makes no sense... The bike pump stopper needs to come out from the pressure inside the bottle for there to be a launch. The 'trigger' seems to be pretty much useless.

    0
    jridley
    jridley

    Reply 10 years ago on Introduction

    The stopper will come out at a pretty low pressure, probably no more than 20 PSI. With the trigger holding it in place, you can run the pressure up a lot higher. I use different triggers but I run the pressure as high as 140 PSI. 2L PETE bottles will burst at about 160, so pushing 140 is probably not a great idea, though they don't hurt anything then they burst, except to make a lot of noise.

    0
    Prop
    Prop

    13 years ago

    I found a video of a guy with like 100 of these straped to his back. When they fied all at the same time it launched the guy really far...to bad i cant find it any more.

    0
    pooboy
    pooboy

    Reply 12 years ago

    saw it on mythbusters

    0
    joemonkey
    joemonkey

    Reply 12 years ago

    you know they proved that fake?!

    0
    Peacedude
    Peacedude

    Reply 10 years ago on Introduction

    Not exactly, they proved that some chinease guy didnt blast himself 20 ft. in the air using soda bottle rockets

    0
    Prop
    Prop

    Reply 10 years ago on Introduction

    I know they said they proved it a fake but I just think they didnt do it right....they couldnt fire them all at once but I think I they had a better way to fire they it would have worked