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by Fanglin
November 29th, 2015, 12:15 pm
Forum: 2016 Build Events
Topic: Bottle Rocket B
Replies: 110
Views: 28607

Re: Bottle Rocket B

What is the best length for the rocket and what's the best amount of water? Most images in the image gallery show shorter rockets, but the pictures in Best of Nationals and elsewhere of high-performing rockets all seem to show longer rockets (not that I've ever taken this event, so my information p...
by Fanglin
November 29th, 2015, 12:09 pm
Forum: 2016 Build Events
Topic: Bottle Rocket B
Replies: 110
Views: 28607

Re: Bottle Rocket B

With this technique above, I can get about 20 seconds with a good rocket, with the egg having about a 75% survival rate.
by Fanglin
November 29th, 2015, 12:06 pm
Forum: 2016 Build Events
Topic: Bottle Rocket B
Replies: 110
Views: 28607

Re: Bottle Rocket B

I found that a nose cone similarly to the one in the picture (above) is not very strong. What I did, is I took at fluorescent light cover, and rolled 0.07 plastic film around it to make a very lightweight tube, which you can then find a way to attach to the top of the bottle. Since this year require...
by Fanglin
November 22nd, 2015, 12:44 pm
Forum: Elastic Launch Glider B
Topic: Materials/Kits
Replies: 20
Views: 6641

Re: Materials/Kits

Last year, I used the Freedom Flight glider kit. I found that kit to be more of a tedious build, but definitely worth the time. It is also very cheep (compared to others). I had no problem with the weight, which was actually only about 4 grams. This year, because the 2015-2016 glider from Freedom fl...

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