Air Trajectory B/C

bernard
Administrator
Administrator
Posts: 1990
Joined: January 5th, 2014, 3:12 pm
Division: Grad
State: WA
Location: Seattle, WA
Contact:

Re: Air Trajectory B/C

Postby bernard » November 6th, 2015, 12:54 pm

Also, will I be allowed to pull a string to release the hook and activate the trebuchet?
A lot of teams trigger their device with a string or rod that is pulled. Keep in mind that the triggering device (3.e.) must allow for you to be at least 75 cm away from the launch area. So you'd most likely need a string or something that is long.

I'll consider your previous question later today; I have something coming up in a couple of minutes.
"One of the ways that I believe people express their appreciation to the rest of humanity is to make something wonderful and put it out there."

User avatar
Whiteheat073
Member
Member
Posts: 49
Joined: November 6th, 2015, 8:27 am
Division: B
State: IL
Location: Standing in Wredling Middle School's Hallway, Being The Target For Air Trajectory Practice
Contact:

Re: Air Trajectory B/C

Postby Whiteheat073 » November 6th, 2015, 12:55 pm

Also, will I be allowed to pull a string to release the hook and activate the trebuchet?
A lot of teams trigger their device with a string or rod that is pulled. Keep in mind that the triggering device (3.e.) must allow for you to be at least 75 cm away from the launch area. So you'd most likely need a string or something that is long.
Okay. Thank you very much!
CM
Yes I'm a geek who likes TF2. Don't judge me.

User avatar
Whiteheat073
Member
Member
Posts: 49
Joined: November 6th, 2015, 8:27 am
Division: B
State: IL
Location: Standing in Wredling Middle School's Hallway, Being The Target For Air Trajectory Practice
Contact:

Re: Air Trajectory B/C

Postby Whiteheat073 » November 6th, 2015, 1:02 pm

For a trebuchet, what projectile would you recommend we launch?
CM
Yes I'm a geek who likes TF2. Don't judge me.

User avatar
Whiteheat073
Member
Member
Posts: 49
Joined: November 6th, 2015, 8:27 am
Division: B
State: IL
Location: Standing in Wredling Middle School's Hallway, Being The Target For Air Trajectory Practice
Contact:

Re: Air Trajectory B/C

Postby Whiteheat073 » November 6th, 2015, 1:10 pm

Does the 5 kg maximum mass include the string and projectiles?
CM
Yes I'm a geek who likes TF2. Don't judge me.

bernard
Administrator
Administrator
Posts: 1990
Joined: January 5th, 2014, 3:12 pm
Division: Grad
State: WA
Location: Seattle, WA
Contact:

Re: Air Trajectory B/C

Postby bernard » November 6th, 2015, 3:37 pm

Does the 5 kg maximum mass include the string and projectiles?
See rule 3.a.: items of nominal mass do not count towards projectiles. So likely a string would not count towards your mass. And your projectile likely wouldn't contribute to the launch force. Short answer: probably no to both (unless you decide to make your string really heavy).
"One of the ways that I believe people express their appreciation to the rest of humanity is to make something wonderful and put it out there."

User avatar
windu34
Moderator
Moderator
Posts: 1330
Joined: April 19th, 2015, 6:37 pm
Division: Grad
State: FL
Location: Gainesville, Florida

Re: Air Trajectory B/C

Postby windu34 » November 6th, 2015, 3:47 pm

Does the 5 kg maximum mass include the string and projectiles?
Read the rules
Boca Raton Community High School Alumni
Florida State Tournament Director 2020
National Physical Sciences Rules Committee Member
kevin@floridascienceolympiad.org || windu34's Userpage

Circuit Lab Event Supervisor for 2020: UT Austin (B/C), MIT (C), Solon (C), Princeton (C), Golden Gate (C), Nationals (C)

chalker
Member
Member
Posts: 2089
Joined: January 9th, 2009, 7:30 pm
Division: Grad
State: OH

Re: Air Trajectory B/C

Postby chalker » November 6th, 2015, 4:20 pm

Do you believe a trebuchet would be able to shoot perfectly straight? I am worried about it launching with too much velocity and that it will go too high and go over the target.
Keep in mind that the launching force has to come from air pressure or movement. It's going to be hard to do that in a traditional trebuchet design.

Student Alumni
National Event Supervisor
National Physical Sciences Rules Committee Chair

User avatar
windu34
Moderator
Moderator
Posts: 1330
Joined: April 19th, 2015, 6:37 pm
Division: Grad
State: FL
Location: Gainesville, Florida

Re: Air Trajectory B/C

Postby windu34 » November 6th, 2015, 6:10 pm

Do you believe a trebuchet would be able to shoot perfectly straight? I am worried about it launching with too much velocity and that it will go too high and go over the target.
Keep in mind that the launching force has to come from air pressure or movement. It's going to be hard to do that in a traditional trebuchet design.
I can think of a way. Id recommend against it though
Boca Raton Community High School Alumni
Florida State Tournament Director 2020
National Physical Sciences Rules Committee Member
kevin@floridascienceolympiad.org || windu34's Userpage

Circuit Lab Event Supervisor for 2020: UT Austin (B/C), MIT (C), Solon (C), Princeton (C), Golden Gate (C), Nationals (C)

User avatar
Whiteheat073
Member
Member
Posts: 49
Joined: November 6th, 2015, 8:27 am
Division: B
State: IL
Location: Standing in Wredling Middle School's Hallway, Being The Target For Air Trajectory Practice
Contact:

Re: Air Trajectory B/C

Postby Whiteheat073 » November 9th, 2015, 3:05 pm

Helpful website for trebuchet's. Overestimates a bit.
http://www.virtualtrebuchet.com/
CM
Yes I'm a geek who likes TF2. Don't judge me.

User avatar
Whiteheat073
Member
Member
Posts: 49
Joined: November 6th, 2015, 8:27 am
Division: B
State: IL
Location: Standing in Wredling Middle School's Hallway, Being The Target For Air Trajectory Practice
Contact:

Re: Air Trajectory B/C

Postby Whiteheat073 » November 9th, 2015, 3:34 pm

I've been doing some research, and it seems that the ping pong ball has yielded the best results as a projectile. Would you agree?
CM
Yes I'm a geek who likes TF2. Don't judge me.


Return to “Air Trajectory B/C”

Who is online

Users browsing this forum: No registered users and 1 guest