Wednesday, May 4, 2011

Attempt #2 5-4-11






3.  Post a blog about the second launch.  The blog needs to cover the following.

     a. What changes did you make to your rocket from the first to the second launch - We took aways 3 fins, now we have a total of three fins, with a much bigger parachute and sturdier nose cone. We also changed the string.
     b. What were some of the things that were successful with your launch and why - Today's launch was much more successful. We got higher height, it sky rocketed. We got an increase in the total flight time but very little floating time. We decided to use the same amount of water (800 ml) with the still the same pumping pressure.
     c. What were some of the things that were not successful with your launch and why - The only thing that wasn't good about todays launch was that our parachute didn't deploy.
     d. How did your launch compare with your prediction - We predicted todays launch to be ten seconds plus again, with a better total flight time and more floating time now, with the bigger parachute.  The actual attempt gave us a little increase in flight time, very little floating time, and a huge increase in height.
     e. What are some possible improvements you can make to improve the performance of your rocket - The next time we launch our rocket for the 3rd attempt, we will attach the parachute to the nose cone so hopefully it actually deploys and we get a better total floating time.

Mass of rocket empty: 155.16g
Mass of rocket w/ water: 644.67g
Flight time: 7 seconds
Time to max height: 5 seconds
Estimated height: 90 (+) ft higher than konia.


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