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  1. Replies
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    I typed it up in a manner that lets it fit a...

    I typed it up in a manner that lets it fit a single sheet of paper, then print it out on 11x17 and post in my classroom.
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    357

    Yeah, they made the Mini Comanche 3 and then...

    Yeah, they made the Mini Comanche 3 and then discontinued the full sized version. From what I hear, it's very easy to lose that rocket due to the high altitude and small diameter.

    And yes, I was...
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    I hear these stories all the time, but I must...

    I hear these stories all the time, but I must have done something wrong with my claim a few months ago. A bad engine ripped apart the sustainer on my Comanche 3. I got a prompt reply stating that I'd...
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    Yeah, I may just bring my equipment the next time...

    Yeah, I may just bring my equipment the next time I take my nephew out to an SCRA launch. It's funny because, as an adult, I prefer to let the launch officer take care of it while I stand back and...
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    This weekend is a music-filled weekend with my...

    This weekend is a music-filled weekend with my students performing at a judged solo festival, then I'm picking up some cellos for my orchestra, and then on to a jazz festival where my cousin is...
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    For anyone interested, we got up there on...

    For anyone interested, we got up there on Saturday. First off, the visitor center is NOT at 75 Colusa Rd. It's right there at the entrance to the park, but the building looks fairly new. It has...
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    Thanks, Fred. I was actually about to email you...

    Thanks, Fred. I was actually about to email you the same question privately, but figured you come on here often enough. Do you know if rangers are usually at the entrance? The website suggests it's...
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    Looks nice! I need to get around to building mine...

    Looks nice! I need to get around to building mine and use up all those C6-3s I have leftover.
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    El Mirage Dry Lake details?

    My extended family wants to take a trip up to El Mirage this weekend, and I recall someone mentioning a designated area for rocket launching. I know you enter the park from Mountain View Rd. Anybody...
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    Sorry for such a late response. They did indeed...

    Sorry for such a late response. They did indeed fly well. Very stable but not surprisingly not as high as the shorter models. The students built 3 each of the Game Over, Freedom, Raven, and Redliner...
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    1) After its second flight, my Big Bertha with a...

    1) After its second flight, my Big Bertha with a baffle was ready to be used for percussion in a salsa band.
    2) Since the baffle is mounted as high as possible, it usually makes the rocket more...
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    1,092

    Poll: The most common reason for lost fins in my class...

    The most common reason for lost fins in my class is poor construction. Although the teams of 3-4 students build the rockets over 2 weeks with 4 36-minute classes per week, some slack off and fall...
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    1,092

    Poll: Official results: BROE reached 280' in the...

    Official results:

    BROE reached 280' in the highest of 2 successful flights.

    Predator reached 271' but the nose and streamer detached from the rocket. The second flight reached 261'...
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    1,092

    Poll: Sorry I don't have the results. 3 concerts and...

    Sorry I don't have the results. 3 concerts and their dress rehearsals this week, plus a death in the family. I hope to have it all calculated by Friday.
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    Or, you could alter the project to make the...

    Or, you could alter the project to make the hypothesis be what he thinks will be the effect of canted clusters.
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    Such a simple and easy solution. Thanks. ...

    Such a simple and easy solution. Thanks.



    Well, most of them seem to pre-crimp, but I know at least a couple of them who need multiple lessons in following instructions. Still, most of them...
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    312

    Solutions to those Quest straws

    I haven't had the opportunity to try out stronger engines, but I bought a 25 pack of A6-4s for my rocketry class, and the poor kids have a hell of a time getting the straws in far enough to hold the...
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    [Wanted] That does look fun. I think I'll add that to my...

    That does look fun. I think I'll add that to my build queue. I don't have any trouble using up A engines because I teach a rocketry class with a field that only allows A's. If you were close, I'd be...
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    I can't speak for all teachers, but I can tell...

    I can't speak for all teachers, but I can tell you that the father helping to build and fly the rockets would be fine with me. What I want to see is the hypothesis, procedures, and analysis written...
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    I have come back and read this thread a few...

    I have come back and read this thread a few times, and I like this idea more every time. Since 3 to 1 would not allow the total power to be the same, I liked Rex R's suggestion. Going even further,...
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    Poll: Well, I've seen all of their Open Rocket files...

    Well, I've seen all of their Open Rocket files and flight simulations, inspected their craftsmanship for straight and airfoiled fins, and know which ones had to add nose weight during string testing,...
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    Poll: We are, but using a very crude method. We will...

    We are, but using a very crude method. We will have 4 pairs of students at each of 3 points around the field 100' from the launch pad. Each pair will use a homemade altitude finder...
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    Poll: Thanks again, everyone. My favorite didn't make...

    Thanks again, everyone. My favorite didn't make the top 3, but that's how it goes. I was very pleased with the creativity this year, and can't wait to teach the class again.
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    Poll: Oh, I made multiple choices allowed on this poll....

    Oh, I made multiple choices allowed on this poll.

    And wow, quite a few votes this morning. Thanks everyone! I'm going to announce the top 3 to the students on Monday.
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    [Wanted] That's going to be my plan when I use up my last...

    That's going to be my plan when I use up my last flight pack. A am now scratch building and shopping for rockets specifically with C6-3 in mind so I can finally start using them up!
  26. BT50 down scale I call Li'l Bertha. I almost had...

    BT50 down scale I call Li'l Bertha. I almost had Mark custom draw stickers to look like the original with puffy lettering, but ran out of time to work it out since this was a demonstrator for a class.
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    Poll: Predator...

    Predator
    http://www.rocketryforum.com/attachment.php?attachmentid=105878&d=1354255373

    R2-D2
    http://www.rocketryforum.com/attachment.php?attachmentid=105879&d=1354255378

    Supreme...
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    Poll: Faded...

    Faded
    http://www.rocketryforum.com/attachment.php?attachmentid=105874&d=1354255202

    Gay Pride V2
    http://www.rocketryforum.com/attachment.php?attachmentid=105875&d=1354255208

    Ortiz Clan...
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    Poll: A Team...

    A Team
    http://www.rocketryforum.com/attachment.php?attachmentid=105870&d=1354254927

    Best Rocket On Earth (BROE)
    http://www.rocketryforum.com/attachment.php?attachmentid=105871&d=1354254935
    ...
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    Poll: Class Design Contest PLEASE VOTE!

    For some reason, this year, only one of my colleagues came by to vote for the best looking rockets in my student scratch design contest. So I'm going to post up pictures and ask you guys to vote for...
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