Today we added gazmos and gidgets to our bottles in attempt to making it soar in the the air for at least five seconds. We were allowed to add a nose cone, parachute and fins. With very few limitations (the liquid has to be water, cone must be attatched to bottle etc.) me and my partner blake designed a bottle rocket. Materials used:
Two 2 L bottles
Lots of duct tape
String
Hot glue gun
Scissors/exacto knife
Clay
Hot glue gun
Scissors/exacto knife
Clay
 | |
| Not identical, similar for the most part though. |
Plastic bag
Poster board
To elongate our rocket for stability, we used the middle to end section of one water bottle and sealed it to the bottom of the other bottle. We cut out triangular shapes for our fins following an outline found from the internet. We then taped the fins completely with duct tape, to make the fins more firm. We hot glue gunned the fins to the bottom of our rocket, careful to not melt the plastic of the bottle by filling it with water. Our cone was made out of poster board (paper material but much thicker than construction paper) and we just rolled it up so it looked like a party hat. We put a ball of clay along with a dime and balled up tape in the top of the cone, to add mass. Lastly, the hard part: the parachute. Although we tried to follow instructions found online on how to make a parachute, we ended up folding the plastic bag in half, and cutting out a half moon that was hand drawn. It seemed a little small, but we decided on testing it out first. We put eight or so pieces of tape going around the plastic bag, and then hole punched that section so we could string the parachute to the cone. We added tape so the string wouldn't rip through the plastic bag and would be more durable. We did the same thing with the tape and hole punching on the cone. The strings from the parachute and were taped down to the bottle.
When we tested our rocket out, we were dumbfounded that it stayed in the air for so long (about 8 seconds but we didn't time it.) And this was without our parachute deploying. We are very content with our product, but we still have some work to do :(
We named our baby rocket Carlos in case you were wondering!
Poster board
To elongate our rocket for stability, we used the middle to end section of one water bottle and sealed it to the bottom of the other bottle. We cut out triangular shapes for our fins following an outline found from the internet. We then taped the fins completely with duct tape, to make the fins more firm. We hot glue gunned the fins to the bottom of our rocket, careful to not melt the plastic of the bottle by filling it with water. Our cone was made out of poster board (paper material but much thicker than construction paper) and we just rolled it up so it looked like a party hat. We put a ball of clay along with a dime and balled up tape in the top of the cone, to add mass. Lastly, the hard part: the parachute. Although we tried to follow instructions found online on how to make a parachute, we ended up folding the plastic bag in half, and cutting out a half moon that was hand drawn. It seemed a little small, but we decided on testing it out first. We put eight or so pieces of tape going around the plastic bag, and then hole punched that section so we could string the parachute to the cone. We added tape so the string wouldn't rip through the plastic bag and would be more durable. We did the same thing with the tape and hole punching on the cone. The strings from the parachute and were taped down to the bottle.
When we tested our rocket out, we were dumbfounded that it stayed in the air for so long (about 8 seconds but we didn't time it.) And this was without our parachute deploying. We are very content with our product, but we still have some work to do :(
We named our baby rocket Carlos in case you were wondering!
Cheeee haha very detailed explanation of the building process, baby Carlos will thrive tomorrow.
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