Today we were designing and building rocket #3. In this design we were allowed to change one thing from our last design, we decided to change the nose cone. Now instead of the nose cone being on the inside, it is now on the outside. We decided to change this feature because we noticed that the nosecone crumpled on itself in the previous launch.

Designing our third rocket was really easy. I think that it was really easy because we already knew exactly what to do. In this design we really did not run into any problems. Something that proves this is that the design took us only 10 minutes to make. The design we chose is a design that has 3 fins, a long and thin nose cone, and a thin and straight body.

Building our third rocket went mostly well. We did really good taping and hot glueing, also the fin measurements were very precise. The nosecone of this rocket did not go very well, because someone in our group put the nosecone on the wrong rocket. I think the reason that this rocket was so easy to build was because we already knew what to do, and more.

This, being a group project required a lot of collaboration. Our collaboration during this portion of the project was very good, but it had its lows. For example, when we were designing and building we had good collaboration, but when we were choosing our jobs for the launch, we argued a lot. Overall it went pretty smoothly and I am looking forward to the launch.

Last week we were launching our first rocket, I had high hopes for the launch because we had improved our rocket a lot from the last launch

Our launch went very well. Our rocket went pretty high and my job was fun. For this rocket launch the job I was assigned was pumper, the pumper is the person who is in charge if pumping the air in to the rocket to create pressure that will be released when the chamber opens. Pumping the rocket was very easy and I pumped it up to exactly 50 PSI. Being a clinometer reader this time was fun, but easier than last time because we did the launch on a cloudy day, but on the first launch it was sunny.

The graphing portion of Rocket #2 was impressive but disappointing. When we graphed our score using the graphing paper we saw that our rocket went 16ft less then it did last time. We were very disappointed about it but we are going to push threw and do good next time, we plan on doing this by putting the nosecone on the outside instead. We think that this will help because we noticed that the nosecone crumpled in on the last launch.

Cooperation during this portion of the project was pretty smooth. Our group worked really well together and we launched with no arguments. On the graphing stage we also cooperated pretty well. I think that it went smoothly because we always agreed on everything.