Trajectory B/C

cypressfalls Robert
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Re: Trajectory B/C

Post by cypressfalls Robert » May 6th, 2009, 9:13 pm

national scores are more like 0/0 or at least 2 pins hit

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Re: Trajectory B/C

Post by shankster » May 7th, 2009, 5:50 am

Been having trouble with the design this year. We used a PVC pipe and and ram-rod thing (more like a smaller pvc pipe inside with a nice cap for the ball to sit on :D ) with eyebolts in the sides for the slingshot bands to attatch to but we've broken the eye bolts multiple times along with a rubberband once so we've had to reshoot everything quite frequently :). I wish that we hadn't just broken it a little bit ago, as i dont think we'll get EVERY single thing, but we'll get close.

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Re: Trajectory B/C

Post by starpug » May 7th, 2009, 5:40 pm

shankster wrote:Been having trouble with the design this year. We used a PVC pipe and and ram-rod thing (more like a smaller pvc pipe inside with a nice cap for the ball to sit on :D ) with eyebolts in the sides for the slingshot bands to attatch to but we've broken the eye bolts multiple times along with a rubberband once so we've had to reshoot everything quite frequently :). I wish that we hadn't just broken it a little bit ago, as i dont think we'll get EVERY single thing, but we'll get close.
How did you break the eyebolts? The solution for the bands is simple don't push it to hard, if it depends on the bands being extremely stretched out then I might suggest getting two identical bands and testing with one then putting the other in before comp. Preferrably you test and fire at comp with the same elastic but sometimes that is impossible because of the design.:|
Get your facts first, then you can distort them as you please. - Mark Twain

cypressfalls Robert
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Re: Trajectory B/C

Post by cypressfalls Robert » May 9th, 2009, 5:18 pm

have the event proctors at nationals, state or regionals ever placed the elevated target at 2 meters?

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Re: Trajectory B/C

Post by starpug » May 9th, 2009, 5:44 pm

I heard that the people in Pennsylvania did that. You'd have to get on of them to confirm.
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Re: Trajectory B/C

Post by fmtiger124 » May 11th, 2009, 1:09 pm

cypressfalls_Robert wrote:have the event proctors at nationals, state or regionals ever placed the elevated target at 2 meters?
i bet a lot of people would overshoot that or have it come in too low
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Re: Trajectory B/C

Post by gyourkoshaven » May 11th, 2009, 6:30 pm

starpug wrote:I heard that the people in Pennsylvania did that. You'd have to get on of them to confirm.
I didn't compete, so I don't know the exact length, but it was very short. Haven Chuck would know for sure.
Strath Haven MS:
2008: Regionals-3, States-5
2009: Regionals-2, States-4
2010: Regionals-1, States-2, Nationals-19 :)
2011 (Co-captain): Regionals-1, States-1, Nationals-11 :D

Nationals: Aquifers-37, Compute This-13, Dynamic Planet-25, Ecology-6, Experimental Design-7, Junkyard-33

Moving to C...

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Re: Trajectory B/C

Post by sean9keenan » May 11th, 2009, 7:52 pm

Trajectory targets for C division PA states were

6 meters 2 meters high

8 meters on the ground

The targets for B division were not as tough (and neither can they be in terms of height)
SoCal Event Supervisor. H2S2O for ever. Competed in Builds & Physics events

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Re: Trajectory B/C

Post by anon y mouse » May 11th, 2009, 8:14 pm

fmtiger124 wrote: i bet a lot of people would overshoot that or have it come in too low
Many did: I know for sure that Uniontown and Harriton (1st and 2nd place respectively) hit both targets. Does anyone know if Plymouth Whitemarsh or Wallenpaupak also hit both targets?

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Re: Trajectory B/C

Post by cypressfalls Robert » May 11th, 2009, 11:21 pm

Thanks for letting me know....I didn't really think they would do that though.......nationals will be a surprise. :D

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