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Step 3Building the darn thing
Right, as demonstrated in the video/s, you have to make a hole in the lid/cap/nozzle wanabe, so whip out your handy dandy sonic screwdriver or equivelant and create a hole about 1cm in diameter in the middle of said lid/cap/nozzle wanabe. Size of hole will affect to some degree rocket performance, too small, won't burn right, to large, not as much thrust.
Then tape the skewers onto the side of the bottle, as seen in video and pictures (note, in the video and instructions, I use clear packing tape, in the pictures I'm using masking tape for clarity purposes only, it's rather heavy for use on our little rocket).
Optional construction:
There were some concerns about the safety of the skewers afixed to the rocket, and of stability, so here's some alternative designs.
Instead of skewers taped to the sides, tape two straws on in exactly the same manner as the skewers. I would recommend using straws from Burger King, they are thicker than most other straws. If desired, fins can also be added to the rocket, two triangles of cardstock can be bent into a V and tped onto the skewers. It may be neccisary to shape them to allow the ends of the skewers be inserted into the ground and angled. I wouldn't recommend using fins when fueled with just alchol, the slight improvement in predictability of flight path doesn't justify the significant reduction in altitude (from 30-40 ft to 15ft). However on a higher powered version (youl find out later) it would probobly be worth it.
Congratulations, youv'e just completed the construction of your own flight ready rocket, and that took what, 3 minutes tops?
Then tape the skewers onto the side of the bottle, as seen in video and pictures (note, in the video and instructions, I use clear packing tape, in the pictures I'm using masking tape for clarity purposes only, it's rather heavy for use on our little rocket).
Optional construction:
There were some concerns about the safety of the skewers afixed to the rocket, and of stability, so here's some alternative designs.
Instead of skewers taped to the sides, tape two straws on in exactly the same manner as the skewers. I would recommend using straws from Burger King, they are thicker than most other straws. If desired, fins can also be added to the rocket, two triangles of cardstock can be bent into a V and tped onto the skewers. It may be neccisary to shape them to allow the ends of the skewers be inserted into the ground and angled. I wouldn't recommend using fins when fueled with just alchol, the slight improvement in predictability of flight path doesn't justify the significant reduction in altitude (from 30-40 ft to 15ft). However on a higher powered version (youl find out later) it would probobly be worth it.
Congratulations, youv'e just completed the construction of your own flight ready rocket, and that took what, 3 minutes tops?
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1
Sep 12, 2007. 10:28 AMtoogood
says:
hey cool thats th same knife iv got ,i bort it in france
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22
Sep 12, 2007. 6:14 PM
KentsOkay (author)
says:
KentsOkay (author)
says:
How did a Winchester knife you get at Academy wind up in Frogland? I hope they didn't chare you more than $15 for it.
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6
Jan 7, 2009. 7:58 PMKryptonite
says:
Kryptonite
says:
...Wow, Frogland... I really have to remember that next time my French teacher tells me off!
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22
Jan 8, 2009. 5:41 AMKentsOkay (author)
says:
KentsOkay (author)
says:
Hehe, is it a dude or a chick?
Reply
6
Jan 8, 2009. 8:13 PMKryptonite
says:
Kryptonite
says:
Dude, why? I'm not even sure I'm doing French this year. (2009)
Reply
1
Oct 4, 2007. 7:37 AMtoogood
says:
no 12 eurs
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