Air Trajectory B/C

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Re: Air Trajectory B/C

Postby bernard » March 6th, 2016, 8:48 am

Is a trebuchet allowed in air trajectory?
Yes if the gravitational potential energy is converted to air pressure/movement to launch a projectile. A typical physics class trebuchet that doesn't use air pressure will not satisfy this requirement.
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Re: Air Trajectory B/C

Postby AirTrejectors » March 6th, 2016, 9:12 am

Is a trebuchet allowed in air trajectory?
Yes if the gravitational potential energy is converted to air pressure/movement to launch a projectile. A typical physics class trebuchet that doesn't use air pressure will not satisfy this requirement.
How would a trebuchet covert potential energy into air pressure? If it's triggered using air pressure does that count as being incorporated?

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Re: Air Trajectory B/C

Postby bernard » March 6th, 2016, 9:35 am

Is a trebuchet allowed in air trajectory?
Yes if the gravitational potential energy is converted to air pressure/movement to launch a projectile. A typical physics class trebuchet that doesn't use air pressure will not satisfy this requirement.
How would a trebuchet covert potential energy into air pressure? If it's triggered using air pressure does that count as being incorporated?
Energy used to launch the projectile must come from air pressure, which must be initially supplied by the falling mass. A falling mass generating air pressure that causes another mass to fall and launch the projectile would not use air pressure to launch the projectile--the energy comes directly from the gravitational energy of the falling mass. Also your device should not start with any air stored at non-ambient air pressure (e.g. you can't use a pump to increase pressure inside a vessel before launches).

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Re: Air Trajectory B/C

Postby Bazinga+ » March 6th, 2016, 10:47 am

Is a trebuchet allowed in air trajectory?
Yes if the gravitational potential energy is converted to air pressure/movement to launch a projectile. A typical physics class trebuchet that doesn't use air pressure will not satisfy this requirement.
How would a trebuchet covert potential energy into air pressure? If it's triggered using air pressure does that count as being incorporated?
If you have a weight fall on something that causes air flow and that air flow flings the trebuchet then that would be fine.
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Re: Air Trajectory B/C

Postby papesthemonkey » March 6th, 2016, 1:03 pm

hey does anyone know how to signup online for a time slot for air trajectory?

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Re: Air Trajectory B/C

Postby bernard » March 6th, 2016, 1:31 pm

hey does anyone know how to signup online for a time slot for air trajectory?
This should be done following your tournament's sign-up procedures, which vary from tournament to tournament. Email the tournament director to check.
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Re: Air Trajectory B/C

Postby watermydoing14 » March 16th, 2016, 9:15 am


What exactly do you mean by a pump? I've tried to build a sort of air pressure chamber but it did not work out.
Some good pumps I have seen are stomp rocket pumps, either circular, or rectangular.

http://www.amazon.com/The-Original-Stom ... B0006O8Q7Y
I don't recommend using stomp rocket pumps since they have the exact same problems as regular bottles. Try hand pumps or foot pumps which are very consistent and don't wear out.
Our team is experimenting with an ambu bag - one of our member's dad is a doctor and he lent us one for free, but you could probably get them for ~$20 online
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Re: Air Trajectory B/C

Postby AirTrejectors » March 25th, 2016, 12:43 pm

Where does the distance to shoot start from? Do you have to align the front of your device to a line? Also, is a bucket shot using a physical bucket that has a height to it?

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Re: Air Trajectory B/C

Postby maxxxxx » March 25th, 2016, 1:19 pm

Where does the distance to shoot start from? Do you have to align the front of your device to a line? Also, is a bucket shot using a physical bucket that has a height to it?
As long as the device fits within the box I think it does not have to be aligned with the front line. The bucket shot is a literal bucket with height.
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Re: Air Trajectory B/C

Postby AirTrejectors » March 25th, 2016, 2:15 pm

Where does the distance to shoot start from? Do you have to align the front of your device to a line? Also, is a bucket shot using a physical bucket that has a height to it?
As long as the device fits within the box I think it does not have to be aligned with the front line. The bucket shot is a literal bucket with height.
~how high is the bucket normally? And does the projectile have to be a ball? I'm currently using a medicine bottle.


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