Wind Power B/C

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Re: Wind Power B/C

Postby chalker » May 23rd, 2016, 6:39 pm

fl0w wrote:How close were the total scores overall, in div C? (from the top teams especially)


9 point spread between 1st and 6th.

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Re: Wind Power B/C

Postby fl0w » May 24th, 2016, 5:05 pm

Was the gap between first to second relatively large?
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Re: Wind Power B/C

Postby chalker » May 24th, 2016, 5:45 pm

fl0w wrote:Was the gap between first to second relatively large?


3 points.

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Re: Wind Power B/C

Postby LIPX3 » May 28th, 2016, 1:57 pm

I have a suggestion to make Wind Power scores fairer. The blade score is your score divided by the top score times 50. For the written section, it is your points out of 50. For the written section, it should be your score divided by the top score times 50. This way means the design and test are equal.

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Re: Wind Power B/C

Postby chalker » May 28th, 2016, 5:47 pm

LIPX3 wrote:I have a suggestion to make Wind Power scores fairer. The blade score is your score divided by the top score times 50. For the written section, it is your points out of 50. For the written section, it should be your score divided by the top score times 50. This way means the design and test are equal.


Excellent observation and suggestion

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Re: Wind Power B/C

Postby PHXcoach » May 28th, 2016, 10:40 pm

Hello Chalker,
Since I saw some variability with used CD motors this year I was going to experiment with some new CD motors over the summer. Are there any changes planned to the test stand for next year?

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Re: Wind Power B/C

Postby chalker » May 29th, 2016, 7:38 am

PHXcoach wrote:Hello Chalker,
Since I saw some variability with used CD motors this year I was going to experiment with some new CD motors over the summer. Are there any changes planned to the test stand for next year?


Nothing significant. We are clarifying the language to better explain the intent. There are some changes to the blade assemblies, but if you have a stand that meets the current specs it'll be able to mount the new blade assemblies.

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Re: Wind Power B/C

Postby soyuppy » August 6th, 2016, 2:21 pm

Can we have the score sheet treat unit of measure in milli unit, i.e. mV & mW? with 3 significant precision?

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Re: Wind Power B/C

Postby chalker » August 6th, 2016, 2:50 pm

soyuppy wrote:Can we have the score sheet treat unit of measure in milli unit, i.e. mV & mW? with 3 significant precision?


I'll see what I can do.

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Re: Wind Power B/C

Postby soyuppy » August 8th, 2016, 10:24 am

chalker wrote:
PHXcoach wrote:Hello Chalker,
Since I saw some variability with used CD motors this year I was going to experiment with some new CD motors over the summer. Are there any changes planned to the test stand for next year?


Nothing significant. We are clarifying the language to better explain the intent. There are some changes to the blade assemblies, but if you have a stand that meets the current specs it'll be able to mount the new blade assemblies.

Will the rule and language be more specific regarding to placement of blade with respect to the fan. Whether blade can be moved parallel/away/toward the fan. Min/Max allow distance between blade and fan?

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Re: Wind Power B/C

Postby chalker » August 8th, 2016, 4:12 pm

soyuppy wrote:Will the rule and language be more specific regarding to placement of blade with respect to the fan. Whether blade can be moved parallel/away/toward the fan. Min/Max allow distance between blade and fan?


No min distance anymore. Not sure why a max distance would matter? Definitely cleared up the language allowing movement / positioning.

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Re: Wind Power B/C

Postby soyuppy » August 8th, 2016, 9:53 pm

chalker wrote:
soyuppy wrote:Will the rule and language be more specific regarding to placement of blade with respect to the fan. Whether blade can be moved parallel/away/toward the fan. Min/Max allow distance between blade and fan?


No min distance anymore. Not sure why a max distance would matter? Definitely cleared up the language allowing movement / positioning.

Yeah, Max does not have meaning in here. I was just being complete in referring to these parameters.
Look forward to seeing the updated rules.

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Re: Wind Power B/C

Postby daydreamer0023 » August 9th, 2016, 4:10 pm

Will there be a change in the amount of resistance that the turbine has to face?
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Re: Wind Power B/C

Postby chalker » August 10th, 2016, 5:28 am

daydreamer0023 wrote:Will there be a change in the amount of resistance that the turbine has to face?


Yes, we are widening the allowed range of resistors

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Re: Wind Power B/C

Postby soyuppy » August 14th, 2016, 10:33 am

Has anyone tried using the stand science lab ring stand to test/mount/run the blade? Is it sturdy or stable enough to withstand the hi/low box fan speed?


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