Designing and Building Rocket #3

After we designed, built and launched rockets #1 and #2, We had to take all the information that we had gathered about what worked well, and what didn’t work well. Designing the 3rd rocket was easier than designing the 2nd because since we already changed one thing of our rocket, it was easier to figure out what we were going to change on our 3rd one because there were less options. Now I’ll tell you all about the process of designing and building rocket #3.

 

For rocket #3, my team decided to change the fins into bigger fins. This is because we had already changed the body of our rocket to a thicker tube, and we think that it didn’t really make a difference between the thin or thick tube. But, our second choice would be to change the fins, so we are keeping the body and nose cone the same and changing the fins. Our team decided more easily about what to change, and we made the decision quickly. We agreed the whole time, so we didn’t fight.

 

I think that our design for our 3rd rocket is a good one. I always wanted to make the fins bigger so I’m happy that we are making them bigger. We are also putting them a little higher up on the rocket because the group’s rocket that went the highest on the first launch, did that. So we have bigger fins so the air deflects off them more, a thick body for more air flow, and a tall nose cone so that it cuts through the air. I think it is our best design yet. My team collaborated well during this stage and we didn’t argue with each other.

 

Finally, it was time to build our rocket. It was a little easier to agree on things than it was when we built the first and second rocket, because one of the members of our team, wasn’t there. We glued the fins on (and this time we didn’t wrap it in tinfoil because when we did that before, it didn’t do anything). We also glued the nose cone on, and then we wrapped tape around it too just to be safe. Our rocket looks good, it’s colors are green, yellow, and blue. I think it will do well because of the bigger fins. We’ll just have to wait and see.

 

Then, we launched our rocket. For this launch, I was the countdown master. It was really fun because you get to countdown the rocket launch. I was also a clinometer reader. This was really easy because I had already done it two times before. It was really fun launch just like the other two launches, but this time our parents watched. Everyone’s rocket did very well, and went high. We found out later when we graphed the averages of how high our rocket went, that it went 114 feet high. This is disappointing because it was the lowest of all our launches, and it was the last one. But we were okay even though it was the lowest in the class.

Launching and Graphing Rocket #2

In this blog post I will be talking about our launch of rocket #2, and graphing it. Since it was the 2nd time doing everything, it went a lot quicker than the 1st launch because we now knew that we should get more people to get videos of the launch. For graphing, it was a lot faster because we already knew how to do it, so we didn’t need explaining. Also, we didn’t mess up the graphing as much. So now I’ll tell what happened during all of this.

 

At our 2nd launch, I was the rocket launcher, and the rocket retriever. Again, I wanted to be the countdown master, but I was a least the retriever which is one of the things I wanted to be. I think that our rocket went really high, but the clinometer readers for our group said that it wasn’t as high as I thought it was. It went lower than our 1st rocket though. Our rocket went at least the 3rd highest. I think it went the highest but I’m not sure. I think that when I was a clinometer reader, I got it perfect. I also think that it’s fun being a clinometer reader. My group didn’t really argue at all, and it was easy to figure out what jobs each person was going to be.

 

The clinometer readers on the field said that our rocket went 36 meters high, and the clinometer readers opposite them said that our rocket went 42 meters high. When we used the graphing chart, we ended up seeing that our rocket went 41.5 meters. When we used a computer to convert it into feet, we saw that it went 136 feet high. For rocket #3, we are changing the fins to bigger fins. This is because we know that our nose cone is very good, and we have tried both types of bodies, and we think that if we make the fins bigger, then the air will repell off the rocket more. My team didn’t argue at this stage, and we agreed on everything, so that made it easier.

 

 

Launching/Graphing our 2nd Rocket

After we made our rocket, it was time to launch. Then we had to graph the results. In this blog post I will be telling you all about our 1st launch, and graphing our 1st launch. It was really fun watching our rocket shoot into the sky, but before that happened, there was a mishap that you will learn about right now…

 

When we launched our rocket, the nose cone blew off! It went pretty high, but the rocket body didn’t budge. This was because we wrapped the nose cone in tinfoil so when we glued it on we only glued the tinfoil on, not the paper inside. So, the paper ripped through the nose cone. We taped it back on with lots of tape. After we did this it went really high! One other team had to patch theirs up too, but the rest of the team’s rockets went well. I was the rocket placer and a pumper. I wanted to be the countdown master, and retriever, but my jobs were still okay. I also think that I was accurate with the clinometer. Our team collaborated well and we all worked together to fix our rocket.

 

After we taped our nose cone back on and launched it again, it went 46.5 meters. Then, when we converted it into feet, it was 153 feet. It was the second highest. The highest went 192 feet. I think that our rocket did really well, but I also think that we can do better. For our second rocket, we are going to change the body to the thicker tube because there is the same amount of air pressure, but more air inside the rocket. This will hopefully make our 2nd rocket go higher. Our team collaboration during this was good, but we had a little trouble deciding whose graph we would use. Overall, I think that it was really fun.