Bottle Rocket Day 1

Our rocket model fell short of the five second requirement we were supposed to fulfill. Our rocket's times were around three to four seconds, close, but not quite the five seconds we needed. For our rocket we used: 2 2liter bottles, duck tape, string, plastic bag, cardboard, and hot glue. We first cut the top off of one of the 2 liter bottles and taped it to the bottom of the bottle. This created a end/ cone to make the rocket more aerodynamic. We launched that for a 4 second launch. We then added three fins. We made a fin with a height on 14 in. and a width of 8 in. We made them out of cardboard and covered them up with duck tape. We then hot glued the fins on the bottle rocket. We finished securing them by taping them on. The goal of the fins was to make the rocket go up straight, but it didn't seem to make a difference. We then added a plastic bag parachute. The design wasn't properly made to be effective. With the parachute, the rocket had a time of three seconds. Alex and I decided that the parachute we had wasn't working so we decided to remove it and try without the parachute. The rocket got a time of three and a half. Just a little better than the time before. I think that a more effective parachute design will be effective to the rockets air time.

This is a picture of the supplies before we taped the fins on and before we taped on the head of he bottle on. 

This is an picture of of our rocket withe the fins and parachute design. The parachute wasn't big enough and didn't come out enough to be effective to our air time.