Day 2

On our second attempt at launching the bottle rockets no physical modifications were made to the bottle. However something was in fact done differently. We pumped in more air in to the bottle increasing the pressure from 50 psi to 60 psi. This increased pressure caused the bottle to travel a greater height and remain in the air for a longer period of time. This rocket remained in the air for approximately 7-8 seconds. The distance traveled on the x axis (horizontal) was very minimal and most likely due to the wind.

The second rocket we launched today was modified with fins. The fins were cut out of cardboard and protected by duct tape. These were then hot-glued on to the bottle. This was a failed attempt. One fin came off immediately after lift off and the remaining two fins fell off during flight. This bottle only remained in the air for 4-5 seconds. It is possible that the fins were not as fully attached to the bottle as could be, not allowing them to showcase their full potential, but we currently find that no modifications seem to work best for this batch of rockets.