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Our finished design included a parabola shaped cone, 3 fins that were made of tin that were evenly spaced out around the rocket, and clay placed at the top of the rocket for weight.  We choose our cone shape to be a parabola because when we were researching we found out that the parabola shape created the least drag, and was more aerodynamic, and this shape did really well in tests. We choose to put 3 fins on our rocket because in test modals 3 fins did the best and cause the rocket to go the highest. We also place our rockets fin more toward the bottom because we discovered through research the lower the fins were placed the more effective they were. The fins we choose that we chose were also made out of tin because that was the material that were thought would cut through the air the best and create the least

Rocket Design

amount of drag but sill stay sturdy. And to find out where we were going to place our fins  we measured the circumference which came out to be 23 cm, and then we divided that by 3 which was 7.6 cm and then we place our fins 7.6 cm apart so the would be evenly space out around the rocket. We choose to put clay at the top of our rocket because it added weight and made the center of mass to be more toward the top of the rocket and when we research we found that rockets with a center of mass that was more toward the top went a lot higher. And lastly we filled 1/3 of our rockets volume with water because in test that amount did the best.