Parachute Payload System

kulwadee
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Parachute Payload System

Post by kulwadee »

I am a new coach to this event. In the past, students have attached a plastic tube to the top of their rocket and then placed the ping pong onto the tube. This year's rules do not specify that they can do that. Does that mean that the students cannot attach a long plastic tube to the top anymore? If not, do they need to figure out another way to deploy the parachute? If there is no tube, then how can they place their ping pong on top of the rocket? It says that the nose of the rocket needs to be rounded, so that means that the ping pong can't really sit on top of the nose.
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Re: Parachute Payload System

Post by sciolyperson1 »

kulwadee wrote: November 25th, 2019, 5:11 pm I am a new coach to this event. In the past, students have attached a plastic tube to the top of their rocket and then placed the ping pong onto the tube. This year's rules do not specify that they can do that. Does that mean that the students cannot attach a long plastic tube to the top anymore? If not, do they need to figure out another way to deploy the parachute? If there is no tube, then how can they place their ping pong on top of the rocket? It says that the nose of the rocket needs to be rounded, so that means that the ping pong can't really sit on top of the nose.
No rules prevent your students from placing a tube on top of the rocket.
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Re: Parachute Payload System

Post by CookiePie1 »

sciolyperson1 wrote: November 25th, 2019, 5:43 pm
kulwadee wrote: November 25th, 2019, 5:11 pm I am a new coach to this event. In the past, students have attached a plastic tube to the top of their rocket and then placed the ping pong onto the tube. This year's rules do not specify that they can do that. Does that mean that the students cannot attach a long plastic tube to the top anymore? If not, do they need to figure out another way to deploy the parachute? If there is no tube, then how can they place their ping pong on top of the rocket? It says that the nose of the rocket needs to be rounded, so that means that the ping pong can't really sit on top of the nose.
No rules prevent your students from placing a tube on top of the rocket.
i hate to say it, but the long-tube-that-goes-all-the-way-up-to-the-celing design hasn't worked particularly well in practice, from what I've seen the past two years...
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Re: Parachute Payload System

Post by sciolyperson1 »

CookiePie1 wrote: November 25th, 2019, 6:03 pm
sciolyperson1 wrote: November 25th, 2019, 5:43 pm
kulwadee wrote: November 25th, 2019, 5:11 pm I am a new coach to this event. In the past, students have attached a plastic tube to the top of their rocket and then placed the ping pong onto the tube. This year's rules do not specify that they can do that. Does that mean that the students cannot attach a long plastic tube to the top anymore? If not, do they need to figure out another way to deploy the parachute? If there is no tube, then how can they place their ping pong on top of the rocket? It says that the nose of the rocket needs to be rounded, so that means that the ping pong can't really sit on top of the nose.
No rules prevent your students from placing a tube on top of the rocket.
i hate to say it, but the long-tube-that-goes-all-the-way-up-to-the-celing design hasn't worked particularly well in practice, from what I've seen the past two years...
Obviously not that tall but something like a 50cm tube is fine.
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Re: Parachute Payload System

Post by Airco2020 »

CookiePie1 wrote: November 25th, 2019, 6:03 pm
sciolyperson1 wrote: November 25th, 2019, 5:43 pm
kulwadee wrote: November 25th, 2019, 5:11 pm I am a new coach to this event. In the past, students have attached a plastic tube to the top of their rocket and then placed the ping pong onto the tube. This year's rules do not specify that they can do that. Does that mean that the students cannot attach a long plastic tube to the top anymore? If not, do they need to figure out another way to deploy the parachute? If there is no tube, then how can they place their ping pong on top of the rocket? It says that the nose of the rocket needs to be rounded, so that means that the ping pong can't really sit on top of the nose.
No rules prevent your students from placing a tube on top of the rocket.
i hate to say it, but the long-tube-that-goes-all-the-way-up-to-the-celing design hasn't worked particularly well in practice, from what I've seen the past two years...
I think that strategy might be good if the launch is psi limited like 20lbs, but this year you can hit the ceiling in most places so I don't think there is a benefit.
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Re: Parachute Payload System

Post by scienceolympiadams »

As a team is building the ping pong parachute we keep getting stuck on a few things which is a deployment mechanism for the parachute.

Can the payload system has some kind of a nonmetal timer or a rubber band usage to deploy the Ping parachute?

We saw some of the images in the PowerPoint given not sure if those are allowed within the rules. Can The payload system deployment to launch the parachute. Any clarification or help would be appreciated
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Re: Parachute Payload System

Post by sciolyperson1 »

scienceolympiadams wrote: December 29th, 2019, 3:07 pm As a team is building the ping pong parachute we keep getting stuck on a few things which is a deployment mechanism for the parachute.
Can the payload system has some kind of a nonmetal timer or a rubber band usage to deploy the Ping parachute?
You wouldn't need timers, you just need to design the rocket so that once the rocket starts falling, the parachute deploys. It could potentially be a part of the rocket that falls off, allowing the parachute to fall out and deploy or something similar.
scienceolympiadams wrote: December 29th, 2019, 3:07 pm We saw some of the images in the PowerPoint given not sure if those are allowed within the rules. Can The payload system deployment to launch the parachute.
What do you mean by this?
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Re: Parachute Payload System

Post by CookiePie1 »

scienceolympiadams wrote: December 29th, 2019, 3:07 pm
Can the payload system has some kind of a nonmetal timer or a rubber band usage to deploy the Ping parachute?
I'm fairly certain that a rubber band would be considered an elastic flight assist. If anything, it's an alternate source of energy and wouldn't be allowed.
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Re: Parachute Payload System

Post by Micker »

In the rules it says “the ping pong ball attached to the parachute assembly makes up the parachute payload system.” Does this mean that taping things like coins or extra weight onto the ball is not allowed? I’m having in issue where the ping pong ball isn’t heavy enough to drag down the parachute and it ends up flopping on its side. However, when I taped more weight onto the ball, it was much more stable when falling.
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Re: Parachute Payload System

Post by CookiePie1 »

you can't use coins because they're metal. but you can try things like clay or stuff as long as it's taped on.
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