Elevated Bridge B/C
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Re: Elevated Bridge 2009
Very nice! My coach built a bridge similar to yours only not as tall. What were the efficiency ranges for those?
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Re: Elevated Bridge 2009
Hey! That's my happy face in that last picture of Spalding's post! Standing directly behind the sand loader. 

Uncle Fester, Maker & Fiction Science Writer
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Re: Elevated Bridge 2009
I'm actually not sure what the efficiencies were, they didn't announce them, I'm sorry.
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Re: Elevated Bridge 2009
Well then, regardless of masses, were these bridges holding a substantial load? Or were they simply breaking after 8-9kg?
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Re: Elevated Bridge 2009
Most bridges were holding around 3-4 kg. It would've been really impressive if they could hold up to 8 kg.
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Re: Elevated Bridge 2009
That's really low...unless the bridges were very light. Can you estimate how heavy the bridges were?
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Re: Elevated Bridge 2009
Don't use the results at that clinic as too much of an indicator for what's possible. The purpose of the clinic is to test the rules and give the coaches some hints and tips how to get their students started.
There is nothing special about the bridges, and you shouldn't expect them to represent competitive bridges you'll see around the country.
In fact, if the event was run by who I think it was run, his approach is to start with quick and dirty bridges, NOT competitive bridges.
Jeff Anderson
Livonia, MI
There is nothing special about the bridges, and you shouldn't expect them to represent competitive bridges you'll see around the country.
In fact, if the event was run by who I think it was run, his approach is to start with quick and dirty bridges, NOT competitive bridges.
Jeff Anderson
Livonia, MI
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Re: Elevated Bridge 2009
Absolutely correct. Emphasis was HOW TO GO ABOUT researching, building, examples, procedures for competition, etc. I'm not sure exactly how many hours were available for pure building, but it wasn't enough for multiple bridges-- some had a hard time just getting ONE done.
Plus, draft rules were used. Maybe they're the real rules, maybe not.
As a result, we had several working (nonworking) examples of bridges too wide, too narrow, too short, too long, not high enough, wouldn't sit square on the testing jig, etc.
PS: Spalding did better than Spalding admits to doing.
Plus, draft rules were used. Maybe they're the real rules, maybe not.
As a result, we had several working (nonworking) examples of bridges too wide, too narrow, too short, too long, not high enough, wouldn't sit square on the testing jig, etc.
PS: Spalding did better than Spalding admits to doing.
Uncle Fester, Maker & Fiction Science Writer
The Misadventures of the Electric Detention
The Revenge of the Electric Detention
The Curse of the Electric Detention
>> Three full-length adventures, 26 short stories and counting!
The Misadventures of the Electric Detention
The Revenge of the Electric Detention
The Curse of the Electric Detention
>> Three full-length adventures, 26 short stories and counting!
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Re: Elevated Bridge 2009
Are those division B or C bridges? They appear to be div C ones but i'm not that great at determining length.