The purpose of this project is to explore how design choices in a model rocket will effect its flight, such as the length of the body tube and the number of fins. Creating the rockets gives us practice in assembling designs.
We start by measuring the size and wight of the parts we will use to make the rocket. These parts include the launch lug, body tube, balsa wood, nose piece, and parachute. We then use these measured values to input into an engine simulation to see if our rocket can fly. Afterward we started building the rocket. the steps to make the rocket follow:
After optional painting, we do a spin test to see if the rocket was built well. Afterwards, we launch the rockets.
We measured the parts, the values we found can be seen in the screenshots below. Using an A engine our rocket flew over 250 feet into the air.
Test Launch
Fins
Engine
Nose
Body
Pre-launch
Payload
Our first test lead to our rocket only flying 100 feet into the air. In that test we have a triangular fin size, we changed the fins to have a greater angle and reach a little below the body tube and it doubled our flight distance.
On the first day we cut our body tube to 8 inches, and selected the shortest nose cone. We cut the fins out of the balsa wood and super glued them to the body tube. We had some trouble with the super glue, but it mostly stemmed from us putting too much superglue on one of the fins. On the second day, we painted our rocket. On the third day we inserted the technical materials needed for launch. In this step we followed the procedure, however we didn't have a hole to thread the band in our nose so we had to use a cap and superglue it to our nose.