Bottle Rocket B

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Re: Bottle Rocket B

Post by robotman » March 4th, 2011, 1:43 pm

I have seen a 20ish (I think it was 18.5) second Coney from the team I am coaching
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Re: Bottle Rocket B

Post by Littleboy » March 4th, 2011, 1:50 pm

I have been getting around 15-16 with winds and snow. We still have a few more weeks till regionals to perfect our rockets.
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Re: Bottle Rocket B

Post by Half-Blood-Princess » March 4th, 2011, 1:53 pm

Um..... if it isn't backslider, your rocket is doomed to somewhat fail epically.
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Re: Bottle Rocket B

Post by space scientist » March 4th, 2011, 2:29 pm

My best time is about 7.5 seconds, and it was on the first backslider I made that actually worked. In addition, please may someone explain what the Barrowman Center of Pressure (something that I read about while doing research) is along with its importance in building a working backslider.
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Re: Bottle Rocket B

Post by robotman » March 4th, 2011, 3:28 pm

The Center of Pressure (CP) is used to make balanceing a rocket easier.
You want the Center of Pressure to be a bit behind of the Center of Mass (CM) to get the best sliding. The only way I know how to find the CP is to use Barrowmans equation which with a little number play will return your backsliders CP Guide on Calculating CP
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Re: Bottle Rocket B

Post by Half-Blood-Princess » March 4th, 2011, 7:21 pm

AHHHHHHHHH!!!!!!!!!!!!!!!!!!!! IT'S TO TOMORROW!!!!!!!!!! =O (for Colorado)
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Re: Bottle Rocket B

Post by Frogger4907 » March 4th, 2011, 8:06 pm

Seems more complex than meets the eye.
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Re: Bottle Rocket B

Post by Half-Blood-Princess » March 5th, 2011, 4:13 am

What?
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Re: Bottle Rocket B

Post by Platypus » March 5th, 2011, 5:16 pm

My highest time is 17 seconds with a backslider. Is this good enough to win/or get close to winning states?
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Re: Bottle Rocket B

Post by Frogger4907 » March 5th, 2011, 5:18 pm

Platypus wrote:My highest time is 17 seconds with a backslider. Is this good enough to win/or get close to winning states?
Depends on the State.
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