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At last year's trial event both 1st and 2nd in B held the max and weighed somewhere between 6 and 8 grams, so the score would have been more than 1875.

retired1 wrote:At last year's trial event both 1st and 2nd in B held the max and weighed somewhere between 6 and 8 grams, so the score would have been more than 1875.

Was this at the State or National Level?

I think he's talking about Nationals.

Division C

Tested on 10/21/14

Weight of Bridge: 4.93g
Weight Held: 7.46kg
Efficiency: 1,513.18

mass: 6.15g
load: 15kg
eff: 2439
(div B)

Congratulations on a great design, superb construction and great wood choices.

division C
mass : 8.30 g
mass held: 15 kg
total efficienty: 1807

side note: I'm far behind on wright stuff and this bridge survived the 15kg load with no creaking or abnormal sounds of any kind. If I do end up being pressed for time, would it be a good idea to just re-test this bridge?

someusername wrote:division C
mass : 8.30 g
mass held: 15 kg
total efficienty: 1807

side note: I'm far behind on wright stuff and this bridge survived the 15kg load with no creaking or abnormal sounds of any kind. If I do end up being pressed for time, would it be a good idea to just re-test this bridge?

I would highly advise against re-testing. I would suggest rebuilding that same bridge if you're worried; however, you have plenty of time. Congratulations on a fantastic score, as holding the full weight is always an impressive feat. Keep up the good work!

someusername wrote:division C
mass : 8.30 g
mass held: 15 kg
total efficienty: 1807

side note: I'm far behind on wright stuff and this bridge survived the 15kg load with no creaking or abnormal sounds of any kind. If I do end up being pressed for time, would it be a good idea to just re-test this bridge?

If you listened for abnormal sounds and didn't hear anything, check it over, make sure no joints have fallen off, etc. If it looks good, you're probably fine.

Also, one technique that I and a few other people use is the pre-load the structure before a competition, basically say test it to maybe 7.5kg and take the load off. It does a few things..
-The structure has a chance to 'settle' the stresses from building can be worked out so it's more stable
-You make sure you didn't make any stupid mistakes or bad glue joints (it happens to everyone)

(you can go back to boom two years ago and there's some discussion on it. I would personally recommend doing that to a structure a few days before contest. Wouldn't put it much past 1/2 load though)

Division C
Test date: 06/11/14
Weight of Bridge: 6.73g
Weight Held: 17.18kg
Efficiency: 2,552.748
Efficiency Score for 15kg: 2,228.826