We used a 20oz Smart Water bottle for our rocket. To place our four fins an equal distance around the bottle we took a string and wrapped it around the bottle then measured it. We found the circumference to be 21cm. Next we divided the 21cm by 4 to find the distance between each fin. Our fins were positioned 5.25cm apart. By placing the blue tape 5.25cm apart, we made sure that the fins would be an equal distance apart. It is extremely important for fins to have equal distances between each other in order for the rocket to have good rotation. The tape also provided an area to glue the fins on because gluing directly on the bottle would weaken the air chamber and cause the rocket to explode.
No comments:
Post a Comment