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by theging
December 29th, 2012, 3:29 pm
Forum: Boomilever B/C
Topic: Ongoing Contest(Scores)
Replies: 366
Views: 37350

Re: Ongoing Contest(Scores)

This is kind of sad. Our Science Olympiad Team is only 3 years old. I am reading these, and I am getting really depressed. Me and my partner don't have any coaches or anyone to help us out and no prior experience. The highest that we got for a light building event for towers was 2nd place at region...
by theging
December 29th, 2012, 8:07 am
Forum: Boomilever B/C
Topic: Ongoing Contest(Scores)
Replies: 366
Views: 37350

Re: Ongoing Contest(Scores)

No need to apologize. I am curious how folk like Solon do- with their well established "winning ways." Remember, that 6.5 in '08 was in the second year of a boom cycle. Scores get better with a second year of experience. A key will be how much....institutional knowledge remains from 08. It's...rela...
by theging
December 28th, 2012, 1:48 pm
Forum: Boomilever B/C
Topic: Ongoing Contest(Scores)
Replies: 366
Views: 37350

Re: Ongoing Contest(Scores)

Those don't sound like B division scores ;) And I know Ohio is pretty competitive, but a 7.5g boom to carry the whole load? That's getting in the range of the top couple nats places last time this event was run, if I remember correctly. Well I know the 2008 winner was in the mid-6 gram range and he...
by theging
December 28th, 2012, 1:35 pm
Forum: Boomilever B/C
Topic: Ongoing Contest(Scores)
Replies: 366
Views: 37350

Re: Ongoing Contest(Scores)

Those don't sound like B division scores ;) And I know Ohio is pretty competitive, but a 7.5g boom to carry the whole load? That's getting in the range of the top couple nats places last time this event was run, if I remember correctly. Well I know the 2008 winner was in the mid-6 gram range and he...
by theging
December 28th, 2012, 9:21 am
Forum: Boomilever B/C
Topic: Ongoing Contest(Scores)
Replies: 366
Views: 37350

Re: Ongoing Contest(Scores)

What is considered a "good" score? Depends on, among other things, where you are, the competition you're up against, and whether you think good is better than average, medaling, winning.... We know that last time booms ran, National winner was mid-sixes, so, a lower bound on "good." Purely a guess-...
by theging
December 27th, 2012, 2:32 pm
Forum: 2013 Build Events
Topic: Elastic Launched Glider C
Replies: 454
Views: 71334

Re: Elastic Launched Glider C

I understand that some clay on the tip is used for trimming the glider. Do you want to mount the wing as far forward as possible, to minimize the amount of clay, or is there some reason to do otherwise? In order to reduce the amount of ballast, it would be simplest to move the wing backwards toward...
by theging
December 16th, 2012, 3:12 pm
Forum: 2013 Build Events
Topic: Elastic Launched Glider C
Replies: 454
Views: 71334

Re: Elastic Launched Glider C

I have made a glider which has a pretty decent descent rate. The only problem is that no matter how much I change the stab tilt or the rudder, I can't seem to get it to turn left without adding weight to the left wingtip. This additional weight greatly reduces the descent rate. Does anybody have an...
by theging
December 9th, 2012, 6:06 pm
Forum: 2013 Build Events
Topic: Elastic Launched Glider C
Replies: 454
Views: 71334

Re: Elastic Launched Glider C

Normal behavior, that's why you launch pointing up and tilted right (if right handed) to turn the loop into a climbing spiral. Read back through this string (and last year's string) for previous in depth discussion.. Doesn't mean you don't change the horizontal stabilizer, but that's not how you fi...
by theging
December 3rd, 2012, 9:30 am
Forum: 2013 Build Events
Topic: Elastic Launched Glider C
Replies: 454
Views: 71334

Re: Elastic Launched Glider C

0-0 does NOT mean no lift. Remember, incidence is against an arbitrary reference, it is NOT the angle of attack. Also, the 0 incidence angle is not in general the zero lift angle, though its not uncommon either. In addition, the hook is probably below the center of gravity and will pull the nose up...
by theging
December 2nd, 2012, 5:02 pm
Forum: 2013 Study Events
Topic: Forestry ID
Replies: 1117
Views: 74589

Re: Forestry ID

http://sagehen.ucnrs.org/Photos/misc.%20credits/al_grigarich/conifers/slides/Conifer%20015%20Prosser%20Wk.%20Lodgepole%20Pine%20Pinus%20contorta.jpg 1.What does this tree's name refer to? 2.Where habitat do this tree live in? Answers|1. Lodgepole Pine 2. I know it has something to do with the trunk...

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