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If you want to make your bottle go REALLY high, and float down slowly, you SHOULD use a backslider. My competition was in February, and I got 4th. I honestly regret NOT using a backslider because that was what I was gonna do but in the end, decided not to. The people who one first place used a backs...

Do you think that we should put a weight in the rocket to like control the stability or something?

Okay, so we have the 2012 Diseases on the wiki. What do we study about that? Do we just have to memorize all the diseases and remember which diseases are in which disease group? Or like the causes and treatment and stuff?

Our rockets both got under 4 seconds on the competition last Saturday :cry: . Their noses were bent on the way up and caused the rockets to go down because our cones weren't strong enough. It was very sad for us. We spent a lot of time practicing. I think the homemade launcher we used at home was n...

I'm so nervous... The competition for me in TX is only THREE days away.

Oh. Okay.

I have one more question, do we have to bring our bottle rockets in a box or something to the competition?

Is there anything we need to do to the rocket? Like do we need to write our names on it, or draw a line to show how much water we want it to be filled?

okay, so I brought my 1L bottle rocket to my school so that me and my partner could finish building it and one of my friends commented, "the fins should be bigger so that the rocket would go straight up" . I was just wondering, is this true?

Thanks for the help Mr. Chalker

What if I just cut off the top and taped a ping-pong ball on top? You know, so that the nose cone would not be pointed?